File Editor
Directories:
.. (Back)
ID3
Requests
SimplePie
Text
certificates
css
customize
fonts
images
js
pomo
random_compat
rest-api
theme-compat
widgets
Files:
admin-bar.php
atomlib.php
author-template.php
bookmark-template.php
bookmark.php
cache.php
canonical.php
capabilities.php
category-template.php
category.php
class-IXR.php
class-feed.php
class-http.php
class-json.php
class-oembed.php
class-phpass.php
class-phpmailer.php
class-pop3.php
class-requests.php
class-simplepie.php
class-smtp.php
class-snoopy.php
class-walker-category-dropdown.php
class-walker-category.php
class-walker-comment.php
class-walker-nav-menu.php
class-walker-page-dropdown.php
class-walker-page.php
class-wp-admin-bar.php
class-wp-ajax-response.php
class-wp-comment-query.php
class-wp-comment.php
class-wp-customize-control.php
class-wp-customize-manager.php
class-wp-customize-nav-menus.php
class-wp-customize-panel.php
class-wp-customize-section.php
class-wp-customize-setting.php
class-wp-customize-widgets.php
class-wp-editor.php
class-wp-embed.php
class-wp-error.php
class-wp-http-cookie.php
class-wp-http-curl.php
class-wp-http-encoding.php
class-wp-http-ixr-client.php
class-wp-http-proxy.php
class-wp-http-requests-response.php
class-wp-http-response.php
class-wp-http-streams.php
class-wp-image-editor-gd.php
class-wp-image-editor-imagick.php
class-wp-image-editor.php
class-wp-locale.php
class-wp-meta-query.php
class-wp-metadata-lazyloader.php
class-wp-network-query.php
class-wp-network.php
class-wp-oembed-controller.php
class-wp-post-type.php
class-wp-post.php
class-wp-rewrite.php
class-wp-role.php
class-wp-roles.php
class-wp-site-query.php
class-wp-site.php
class-wp-tax-query.php
class-wp-term-query.php
class-wp-term.php
class-wp-theme.php
class-wp-user-query.php
class-wp-user.php
class-wp-walker.php
class-wp-widget-factory.php
class-wp-widget.php
class-wp-xmlrpc-server.php
class-wp.php
class.wp-dependencies.php
class.wp-scripts.php
class.wp-styles.php
comment-template.php
comment.php
compat.php
cron.php
date.php
default-constants.php
default-filters.php
default-widgets.php
deprecated.php
embed-template.php
embed.php
feed-atom-comments.php
feed-atom.php
feed-rdf.php
feed-rss.php
feed-rss2-comments.php
feed-rss2.php
feed.php
formatting.php
functions.php
functions.wp-scripts.php
functions.wp-styles.php
general-template.php
http.php
kses.php
l10n.php
link-template.php
load.php
locale.php
media-template.php
media.php
meta.php
ms-blogs.php
ms-default-constants.php
ms-default-filters.php
ms-deprecated.php
ms-files.php
ms-functions.php
ms-load.php
ms-settings.php
nav-menu-template.php
nav-menu.php
option.php
pluggable-deprecated.php
pluggable.php
plugin.php
post-formats.php
post-template.php
post-thumbnail-template.php
post.php
query.php
registration-functions.php
registration.php
rest-api.php
revision.php
rewrite.php
rss-functions.php
rss.php
script-loader.php
session.php
shortcodes.php
taxonomy.php
template-loader.php
template.php
theme.php
update.php
user.php
vars.php
version.php
widgets.php
wp-db.php
wp-diff.php
Create New File
Create
Edit File: formatting.php
<?php /** * Main WordPress Formatting API. * * Handles many functions for formatting output. * * @package WordPress */ /** * Replaces common plain text characters into formatted entities * * As an example, * * 'cause today's effort makes it worth tomorrow's "holiday" ... * * Becomes: * * ’cause today’s effort makes it worth tomorrow’s “holiday” … * * Code within certain html blocks are skipped. * * Do not use this function before the {@see 'init'} action hook; everything will break. * * @since 0.71 * * @global array $wp_cockneyreplace Array of formatted entities for certain common phrases * @global array $shortcode_tags * @staticvar array $static_characters * @staticvar array $static_replacements * @staticvar array $dynamic_characters * @staticvar array $dynamic_replacements * @staticvar array $default_no_texturize_tags * @staticvar array $default_no_texturize_shortcodes * @staticvar bool $run_texturize * * @param string $text The text to be formatted * @param bool $reset Set to true for unit testing. Translated patterns will reset. * @return string The string replaced with html entities */ function wptexturize( $text, $reset = false ) { global $wp_cockneyreplace, $shortcode_tags; static $static_characters = null, $static_replacements = null, $dynamic_characters = null, $dynamic_replacements = null, $default_no_texturize_tags = null, $default_no_texturize_shortcodes = null, $run_texturize = true, $apos = null, $prime = null, $double_prime = null, $opening_quote = null, $closing_quote = null, $opening_single_quote = null, $closing_single_quote = null, $open_q_flag = '<!--oq-->', $open_sq_flag = '<!--osq-->', $apos_flag = '<!--apos-->'; // If there's nothing to do, just stop. if ( empty( $text ) || false === $run_texturize ) { return $text; } // Set up static variables. Run once only. if ( $reset || ! isset( $static_characters ) ) { /** * Filters whether to skip running wptexturize(). * * Passing false to the filter will effectively short-circuit wptexturize(). * returning the original text passed to the function instead. * * The filter runs only once, the first time wptexturize() is called. * * @since 4.0.0 * * @see wptexturize() * * @param bool $run_texturize Whether to short-circuit wptexturize(). */ $run_texturize = apply_filters( 'run_wptexturize', $run_texturize ); if ( false === $run_texturize ) { return $text; } /* translators: opening curly double quote */ $opening_quote = _x( '“', 'opening curly double quote' ); /* translators: closing curly double quote */ $closing_quote = _x( '”', 'closing curly double quote' ); /* translators: apostrophe, for example in 'cause or can't */ $apos = _x( '’', 'apostrophe' ); /* translators: prime, for example in 9' (nine feet) */ $prime = _x( '′', 'prime' ); /* translators: double prime, for example in 9" (nine inches) */ $double_prime = _x( '″', 'double prime' ); /* translators: opening curly single quote */ $opening_single_quote = _x( '‘', 'opening curly single quote' ); /* translators: closing curly single quote */ $closing_single_quote = _x( '’', 'closing curly single quote' ); /* translators: en dash */ $en_dash = _x( '–', 'en dash' ); /* translators: em dash */ $em_dash = _x( '—', 'em dash' ); $default_no_texturize_tags = array('pre', 'code', 'kbd', 'style', 'script', 'tt'); $default_no_texturize_shortcodes = array('code'); // if a plugin has provided an autocorrect array, use it if ( isset($wp_cockneyreplace) ) { $cockney = array_keys( $wp_cockneyreplace ); $cockneyreplace = array_values( $wp_cockneyreplace ); } else { /* translators: This is a comma-separated list of words that defy the syntax of quotations in normal use, * for example... 'We do not have enough words yet' ... is a typical quoted phrase. But when we write * lines of code 'til we have enough of 'em, then we need to insert apostrophes instead of quotes. */ $cockney = explode( ',', _x( "'tain't,'twere,'twas,'tis,'twill,'til,'bout,'nuff,'round,'cause,'em", 'Comma-separated list of words to texturize in your language' ) ); $cockneyreplace = explode( ',', _x( '’tain’t,’twere,’twas,’tis,’twill,’til,’bout,’nuff,’round,’cause,’em', 'Comma-separated list of replacement words in your language' ) ); } $static_characters = array_merge( array( '...', '``', '\'\'', ' (tm)' ), $cockney ); $static_replacements = array_merge( array( '…', $opening_quote, $closing_quote, ' ™' ), $cockneyreplace ); // Pattern-based replacements of characters. // Sort the remaining patterns into several arrays for performance tuning. $dynamic_characters = array( 'apos' => array(), 'quote' => array(), 'dash' => array() ); $dynamic_replacements = array( 'apos' => array(), 'quote' => array(), 'dash' => array() ); $dynamic = array(); $spaces = wp_spaces_regexp(); // '99' and '99" are ambiguous among other patterns; assume it's an abbreviated year at the end of a quotation. if ( "'" !== $apos || "'" !== $closing_single_quote ) { $dynamic[ '/\'(\d\d)\'(?=\Z|[.,:;!?)}\-\]]|>|' . $spaces . ')/' ] = $apos_flag . '$1' . $closing_single_quote; } if ( "'" !== $apos || '"' !== $closing_quote ) { $dynamic[ '/\'(\d\d)"(?=\Z|[.,:;!?)}\-\]]|>|' . $spaces . ')/' ] = $apos_flag . '$1' . $closing_quote; } // '99 '99s '99's (apostrophe) But never '9 or '99% or '999 or '99.0. if ( "'" !== $apos ) { $dynamic[ '/\'(?=\d\d(?:\Z|(?![%\d]|[.,]\d)))/' ] = $apos_flag; } // Quoted Numbers like '0.42' if ( "'" !== $opening_single_quote && "'" !== $closing_single_quote ) { $dynamic[ '/(?<=\A|' . $spaces . ')\'(\d[.,\d]*)\'/' ] = $open_sq_flag . '$1' . $closing_single_quote; } // Single quote at start, or preceded by (, {, <, [, ", -, or spaces. if ( "'" !== $opening_single_quote ) { $dynamic[ '/(?<=\A|[([{"\-]|<|' . $spaces . ')\'/' ] = $open_sq_flag; } // Apostrophe in a word. No spaces, double apostrophes, or other punctuation. if ( "'" !== $apos ) { $dynamic[ '/(?<!' . $spaces . ')\'(?!\Z|[.,:;!?"\'(){}[\]\-]|&[lg]t;|' . $spaces . ')/' ] = $apos_flag; } $dynamic_characters['apos'] = array_keys( $dynamic ); $dynamic_replacements['apos'] = array_values( $dynamic ); $dynamic = array(); // Quoted Numbers like "42" if ( '"' !== $opening_quote && '"' !== $closing_quote ) { $dynamic[ '/(?<=\A|' . $spaces . ')"(\d[.,\d]*)"/' ] = $open_q_flag . '$1' . $closing_quote; } // Double quote at start, or preceded by (, {, <, [, -, or spaces, and not followed by spaces. if ( '"' !== $opening_quote ) { $dynamic[ '/(?<=\A|[([{\-]|<|' . $spaces . ')"(?!' . $spaces . ')/' ] = $open_q_flag; } $dynamic_characters['quote'] = array_keys( $dynamic ); $dynamic_replacements['quote'] = array_values( $dynamic ); $dynamic = array(); // Dashes and spaces $dynamic[ '/---/' ] = $em_dash; $dynamic[ '/(?<=^|' . $spaces . ')--(?=$|' . $spaces . ')/' ] = $em_dash; $dynamic[ '/(?<!xn)--/' ] = $en_dash; $dynamic[ '/(?<=^|' . $spaces . ')-(?=$|' . $spaces . ')/' ] = $en_dash; $dynamic_characters['dash'] = array_keys( $dynamic ); $dynamic_replacements['dash'] = array_values( $dynamic ); } // Must do this every time in case plugins use these filters in a context sensitive manner /** * Filters the list of HTML elements not to texturize. * * @since 2.8.0 * * @param array $default_no_texturize_tags An array of HTML element names. */ $no_texturize_tags = apply_filters( 'no_texturize_tags', $default_no_texturize_tags ); /** * Filters the list of shortcodes not to texturize. * * @since 2.8.0 * * @param array $default_no_texturize_shortcodes An array of shortcode names. */ $no_texturize_shortcodes = apply_filters( 'no_texturize_shortcodes', $default_no_texturize_shortcodes ); $no_texturize_tags_stack = array(); $no_texturize_shortcodes_stack = array(); // Look for shortcodes and HTML elements. preg_match_all( '@\[/?([^<>&/\[\]\x00-\x20=]++)@', $text, $matches ); $tagnames = array_intersect( array_keys( $shortcode_tags ), $matches[1] ); $found_shortcodes = ! empty( $tagnames ); $shortcode_regex = $found_shortcodes ? _get_wptexturize_shortcode_regex( $tagnames ) : ''; $regex = _get_wptexturize_split_regex( $shortcode_regex ); $textarr = preg_split( $regex, $text, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY ); foreach ( $textarr as &$curl ) { // Only call _wptexturize_pushpop_element if $curl is a delimiter. $first = $curl[0]; if ( '<' === $first ) { if ( '<!--' === substr( $curl, 0, 4 ) ) { // This is an HTML comment delimiter. continue; } else { // This is an HTML element delimiter. // Replace each & with & unless it already looks like an entity. $curl = preg_replace( '/&(?!#(?:\d+|x[a-f0-9]+);|[a-z1-4]{1,8};)/i', '&', $curl ); _wptexturize_pushpop_element( $curl, $no_texturize_tags_stack, $no_texturize_tags ); } } elseif ( '' === trim( $curl ) ) { // This is a newline between delimiters. Performance improves when we check this. continue; } elseif ( '[' === $first && $found_shortcodes && 1 === preg_match( '/^' . $shortcode_regex . '$/', $curl ) ) { // This is a shortcode delimiter. if ( '[[' !== substr( $curl, 0, 2 ) && ']]' !== substr( $curl, -2 ) ) { // Looks like a normal shortcode. _wptexturize_pushpop_element( $curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes ); } else { // Looks like an escaped shortcode. continue; } } elseif ( empty( $no_texturize_shortcodes_stack ) && empty( $no_texturize_tags_stack ) ) { // This is neither a delimiter, nor is this content inside of no_texturize pairs. Do texturize. $curl = str_replace( $static_characters, $static_replacements, $curl ); if ( false !== strpos( $curl, "'" ) ) { $curl = preg_replace( $dynamic_characters['apos'], $dynamic_replacements['apos'], $curl ); $curl = wptexturize_primes( $curl, "'", $prime, $open_sq_flag, $closing_single_quote ); $curl = str_replace( $apos_flag, $apos, $curl ); $curl = str_replace( $open_sq_flag, $opening_single_quote, $curl ); } if ( false !== strpos( $curl, '"' ) ) { $curl = preg_replace( $dynamic_characters['quote'], $dynamic_replacements['quote'], $curl ); $curl = wptexturize_primes( $curl, '"', $double_prime, $open_q_flag, $closing_quote ); $curl = str_replace( $open_q_flag, $opening_quote, $curl ); } if ( false !== strpos( $curl, '-' ) ) { $curl = preg_replace( $dynamic_characters['dash'], $dynamic_replacements['dash'], $curl ); } // 9x9 (times), but never 0x9999 if ( 1 === preg_match( '/(?<=\d)x\d/', $curl ) ) { // Searching for a digit is 10 times more expensive than for the x, so we avoid doing this one! $curl = preg_replace( '/\b(\d(?(?<=0)[\d\.,]+|[\d\.,]*))x(\d[\d\.,]*)\b/', '$1×$2', $curl ); } // Replace each & with & unless it already looks like an entity. $curl = preg_replace( '/&(?!#(?:\d+|x[a-f0-9]+);|[a-z1-4]{1,8};)/i', '&', $curl ); } } return implode( '', $textarr ); } /** * Implements a logic tree to determine whether or not "7'." represents seven feet, * then converts the special char into either a prime char or a closing quote char. * * @since 4.3.0 * * @param string $haystack The plain text to be searched. * @param string $needle The character to search for such as ' or ". * @param string $prime The prime char to use for replacement. * @param string $open_quote The opening quote char. Opening quote replacement must be * accomplished already. * @param string $close_quote The closing quote char to use for replacement. * @return string The $haystack value after primes and quotes replacements. */ function wptexturize_primes( $haystack, $needle, $prime, $open_quote, $close_quote ) { $spaces = wp_spaces_regexp(); $flag = '<!--wp-prime-or-quote-->'; $quote_pattern = "/$needle(?=\\Z|[.,:;!?)}\\-\\]]|>|" . $spaces . ")/"; $prime_pattern = "/(?<=\\d)$needle/"; $flag_after_digit = "/(?<=\\d)$flag/"; $flag_no_digit = "/(?<!\\d)$flag/"; $sentences = explode( $open_quote, $haystack ); foreach ( $sentences as $key => &$sentence ) { if ( false === strpos( $sentence, $needle ) ) { continue; } elseif ( 0 !== $key && 0 === substr_count( $sentence, $close_quote ) ) { $sentence = preg_replace( $quote_pattern, $flag, $sentence, -1, $count ); if ( $count > 1 ) { // This sentence appears to have multiple closing quotes. Attempt Vulcan logic. $sentence = preg_replace( $flag_no_digit, $close_quote, $sentence, -1, $count2 ); if ( 0 === $count2 ) { // Try looking for a quote followed by a period. $count2 = substr_count( $sentence, "$flag." ); if ( $count2 > 0 ) { // Assume the rightmost quote-period match is the end of quotation. $pos = strrpos( $sentence, "$flag." ); } else { // When all else fails, make the rightmost candidate a closing quote. // This is most likely to be problematic in the context of bug #18549. $pos = strrpos( $sentence, $flag ); } $sentence = substr_replace( $sentence, $close_quote, $pos, strlen( $flag ) ); } // Use conventional replacement on any remaining primes and quotes. $sentence = preg_replace( $prime_pattern, $prime, $sentence ); $sentence = preg_replace( $flag_after_digit, $prime, $sentence ); $sentence = str_replace( $flag, $close_quote, $sentence ); } elseif ( 1 == $count ) { // Found only one closing quote candidate, so give it priority over primes. $sentence = str_replace( $flag, $close_quote, $sentence ); $sentence = preg_replace( $prime_pattern, $prime, $sentence ); } else { // No closing quotes found. Just run primes pattern. $sentence = preg_replace( $prime_pattern, $prime, $sentence ); } } else { $sentence = preg_replace( $prime_pattern, $prime, $sentence ); $sentence = preg_replace( $quote_pattern, $close_quote, $sentence ); } if ( '"' == $needle && false !== strpos( $sentence, '"' ) ) { $sentence = str_replace( '"', $close_quote, $sentence ); } } return implode( $open_quote, $sentences ); } /** * Search for disabled element tags. Push element to stack on tag open and pop * on tag close. * * Assumes first char of $text is tag opening and last char is tag closing. * Assumes second char of $text is optionally '/' to indicate closing as in </html>. * * @since 2.9.0 * @access private * * @param string $text Text to check. Must be a tag like `<html>` or `[shortcode]`. * @param array $stack List of open tag elements. * @param array $disabled_elements The tag names to match against. Spaces are not allowed in tag names. */ function _wptexturize_pushpop_element( $text, &$stack, $disabled_elements ) { // Is it an opening tag or closing tag? if ( isset( $text[1] ) && '/' !== $text[1] ) { $opening_tag = true; $name_offset = 1; } elseif ( 0 == count( $stack ) ) { // Stack is empty. Just stop. return; } else { $opening_tag = false; $name_offset = 2; } // Parse out the tag name. $space = strpos( $text, ' ' ); if ( false === $space ) { $space = -1; } else { $space -= $name_offset; } $tag = substr( $text, $name_offset, $space ); // Handle disabled tags. if ( in_array( $tag, $disabled_elements ) ) { if ( $opening_tag ) { /* * This disables texturize until we find a closing tag of our type * (e.g. <pre>) even if there was invalid nesting before that * * Example: in the case <pre>sadsadasd</code>"baba"</pre> * "baba" won't be texturize */ array_push( $stack, $tag ); } elseif ( end( $stack ) == $tag ) { array_pop( $stack ); } } } /** * Replaces double line-breaks with paragraph elements. * * A group of regex replaces used to identify text formatted with newlines and * replace double line-breaks with HTML paragraph tags. The remaining line-breaks * after conversion become <<br />> tags, unless $br is set to '0' or 'false'. * * @since 0.71 * * @param string $pee The text which has to be formatted. * @param bool $br Optional. If set, this will convert all remaining line-breaks * after paragraphing. Default true. * @return string Text which has been converted into correct paragraph tags. */ function wpautop( $pee, $br = true ) { $pre_tags = array(); if ( trim($pee) === '' ) return ''; // Just to make things a little easier, pad the end. $pee = $pee . "\n"; /* * Pre tags shouldn't be touched by autop. * Replace pre tags with placeholders and bring them back after autop. */ if ( strpos($pee, '<pre') !== false ) { $pee_parts = explode( '</pre>', $pee ); $last_pee = array_pop($pee_parts); $pee = ''; $i = 0; foreach ( $pee_parts as $pee_part ) { $start = strpos($pee_part, '<pre'); // Malformed html? if ( $start === false ) { $pee .= $pee_part; continue; } $name = "<pre wp-pre-tag-$i></pre>"; $pre_tags[$name] = substr( $pee_part, $start ) . '</pre>'; $pee .= substr( $pee_part, 0, $start ) . $name; $i++; } $pee .= $last_pee; } // Change multiple <br>s into two line breaks, which will turn into paragraphs. $pee = preg_replace('|<br\s*/?>\s*<br\s*/?>|', "\n\n", $pee); $allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|form|map|area|blockquote|address|math|style|p|h[1-6]|hr|fieldset|legend|section|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary)'; // Add a single line break above block-level opening tags. $pee = preg_replace('!(<' . $allblocks . '[\s/>])!', "\n$1", $pee); // Add a double line break below block-level closing tags. $pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee); // Standardize newline characters to "\n". $pee = str_replace(array("\r\n", "\r"), "\n", $pee); // Find newlines in all elements and add placeholders. $pee = wp_replace_in_html_tags( $pee, array( "\n" => " <!-- wpnl --> " ) ); // Collapse line breaks before and after <option> elements so they don't get autop'd. if ( strpos( $pee, '<option' ) !== false ) { $pee = preg_replace( '|\s*<option|', '<option', $pee ); $pee = preg_replace( '|</option>\s*|', '</option>', $pee ); } /* * Collapse line breaks inside <object> elements, before <param> and <embed> elements * so they don't get autop'd. */ if ( strpos( $pee, '</object>' ) !== false ) { $pee = preg_replace( '|(<object[^>]*>)\s*|', '$1', $pee ); $pee = preg_replace( '|\s*</object>|', '</object>', $pee ); $pee = preg_replace( '%\s*(</?(?:param|embed)[^>]*>)\s*%', '$1', $pee ); } /* * Collapse line breaks inside <audio> and <video> elements, * before and after <source> and <track> elements. */ if ( strpos( $pee, '<source' ) !== false || strpos( $pee, '<track' ) !== false ) { $pee = preg_replace( '%([<\[](?:audio|video)[^>\]]*[>\]])\s*%', '$1', $pee ); $pee = preg_replace( '%\s*([<\[]/(?:audio|video)[>\]])%', '$1', $pee ); $pee = preg_replace( '%\s*(<(?:source|track)[^>]*>)\s*%', '$1', $pee ); } // Remove more than two contiguous line breaks. $pee = preg_replace("/\n\n+/", "\n\n", $pee); // Split up the contents into an array of strings, separated by double line breaks. $pees = preg_split('/\n\s*\n/', $pee, -1, PREG_SPLIT_NO_EMPTY); // Reset $pee prior to rebuilding. $pee = ''; // Rebuild the content as a string, wrapping every bit with a <p>. foreach ( $pees as $tinkle ) { $pee .= '<p>' . trim($tinkle, "\n") . "</p>\n"; } // Under certain strange conditions it could create a P of entirely whitespace. $pee = preg_replace('|<p>\s*</p>|', '', $pee); // Add a closing <p> inside <div>, <address>, or <form> tag if missing. $pee = preg_replace('!<p>([^<]+)</(div|address|form)>!', "<p>$1</p></$2>", $pee); // If an opening or closing block element tag is wrapped in a <p>, unwrap it. $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); // In some cases <li> may get wrapped in <p>, fix them. $pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // If a <blockquote> is wrapped with a <p>, move it inside the <blockquote>. $pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee); $pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee); // If an opening or closing block element tag is preceded by an opening <p> tag, remove it. $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee); // If an opening or closing block element tag is followed by a closing <p> tag, remove it. $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); // Optionally insert line breaks. if ( $br ) { // Replace newlines that shouldn't be touched with a placeholder. $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', '_autop_newline_preservation_helper', $pee); // Normalize <br> $pee = str_replace( array( '<br>', '<br/>' ), '<br />', $pee ); // Replace any new line characters that aren't preceded by a <br /> with a <br />. $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // Replace newline placeholders with newlines. $pee = str_replace('<WPPreserveNewline />', "\n", $pee); } // If a <br /> tag is after an opening or closing block tag, remove it. $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee); // If a <br /> tag is before a subset of opening or closing block tags, remove it. $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee); $pee = preg_replace( "|\n</p>$|", '</p>', $pee ); // Replace placeholder <pre> tags with their original content. if ( !empty($pre_tags) ) $pee = str_replace(array_keys($pre_tags), array_values($pre_tags), $pee); // Restore newlines in all elements. if ( false !== strpos( $pee, '<!-- wpnl -->' ) ) { $pee = str_replace( array( ' <!-- wpnl --> ', '<!-- wpnl -->' ), "\n", $pee ); } return $pee; } /** * Separate HTML elements and comments from the text. * * @since 4.2.4 * * @param string $input The text which has to be formatted. * @return array The formatted text. */ function wp_html_split( $input ) { return preg_split( get_html_split_regex(), $input, -1, PREG_SPLIT_DELIM_CAPTURE ); } /** * Retrieve the regular expression for an HTML element. * * @since 4.4.0 * * @return string The regular expression */ function get_html_split_regex() { static $regex; if ( ! isset( $regex ) ) { $comments = '!' // Start of comment, after the <. . '(?:' // Unroll the loop: Consume everything until --> is found. . '-(?!->)' // Dash not followed by end of comment. . '[^\-]*+' // Consume non-dashes. . ')*+' // Loop possessively. . '(?:-->)?'; // End of comment. If not found, match all input. $cdata = '!\[CDATA\[' // Start of comment, after the <. . '[^\]]*+' // Consume non-]. . '(?:' // Unroll the loop: Consume everything until ]]> is found. . '](?!]>)' // One ] not followed by end of comment. . '[^\]]*+' // Consume non-]. . ')*+' // Loop possessively. . '(?:]]>)?'; // End of comment. If not found, match all input. $escaped = '(?=' // Is the element escaped? . '!--' . '|' . '!\[CDATA\[' . ')' . '(?(?=!-)' // If yes, which type? . $comments . '|' . $cdata . ')'; $regex = '/(' // Capture the entire match. . '<' // Find start of element. . '(?' // Conditional expression follows. . $escaped // Find end of escaped element. . '|' // ... else ... . '[^>]*>?' // Find end of normal element. . ')' . ')/'; } return $regex; } /** * Retrieve the combined regular expression for HTML and shortcodes. * * @access private * @ignore * @internal This function will be removed in 4.5.0 per Shortcode API Roadmap. * @since 4.4.0 * * @param string $shortcode_regex The result from _get_wptexturize_shortcode_regex(). Optional. * @return string The regular expression */ function _get_wptexturize_split_regex( $shortcode_regex = '' ) { static $html_regex; if ( ! isset( $html_regex ) ) { $comment_regex = '!' // Start of comment, after the <. . '(?:' // Unroll the loop: Consume everything until --> is found. . '-(?!->)' // Dash not followed by end of comment. . '[^\-]*+' // Consume non-dashes. . ')*+' // Loop possessively. . '(?:-->)?'; // End of comment. If not found, match all input. $html_regex = // Needs replaced with wp_html_split() per Shortcode API Roadmap. '<' // Find start of element. . '(?(?=!--)' // Is this a comment? . $comment_regex // Find end of comment. . '|' . '[^>]*>?' // Find end of element. If not found, match all input. . ')'; } if ( empty( $shortcode_regex ) ) { $regex = '/(' . $html_regex . ')/'; } else { $regex = '/(' . $html_regex . '|' . $shortcode_regex . ')/'; } return $regex; } /** * Retrieve the regular expression for shortcodes. * * @access private * @ignore * @internal This function will be removed in 4.5.0 per Shortcode API Roadmap. * @since 4.4.0 * * @param array $tagnames List of shortcodes to find. * @return string The regular expression */ function _get_wptexturize_shortcode_regex( $tagnames ) { $tagregexp = join( '|', array_map( 'preg_quote', $tagnames ) ); $tagregexp = "(?:$tagregexp)(?=[\\s\\]\\/])"; // Excerpt of get_shortcode_regex(). $regex = '\[' // Find start of shortcode. . '[\/\[]?' // Shortcodes may begin with [/ or [[ . $tagregexp // Only match registered shortcodes, because performance. . '(?:' . '[^\[\]<>]+' // Shortcodes do not contain other shortcodes. Quantifier critical. . '|' . '<[^\[\]>]*>' // HTML elements permitted. Prevents matching ] before >. . ')*+' // Possessive critical. . '\]' // Find end of shortcode. . '\]?'; // Shortcodes may end with ]] return $regex; } /** * Replace characters or phrases within HTML elements only. * * @since 4.2.3 * * @param string $haystack The text which has to be formatted. * @param array $replace_pairs In the form array('from' => 'to', ...). * @return string The formatted text. */ function wp_replace_in_html_tags( $haystack, $replace_pairs ) { // Find all elements. $textarr = wp_html_split( $haystack ); $changed = false; // Optimize when searching for one item. if ( 1 === count( $replace_pairs ) ) { // Extract $needle and $replace. foreach ( $replace_pairs as $needle => $replace ); // Loop through delimiters (elements) only. for ( $i = 1, $c = count( $textarr ); $i < $c; $i += 2 ) { if ( false !== strpos( $textarr[$i], $needle ) ) { $textarr[$i] = str_replace( $needle, $replace, $textarr[$i] ); $changed = true; } } } else { // Extract all $needles. $needles = array_keys( $replace_pairs ); // Loop through delimiters (elements) only. for ( $i = 1, $c = count( $textarr ); $i < $c; $i += 2 ) { foreach ( $needles as $needle ) { if ( false !== strpos( $textarr[$i], $needle ) ) { $textarr[$i] = strtr( $textarr[$i], $replace_pairs ); $changed = true; // After one strtr() break out of the foreach loop and look at next element. break; } } } } if ( $changed ) { $haystack = implode( $textarr ); } return $haystack; } /** * Newline preservation help function for wpautop * * @since 3.1.0 * @access private * * @param array $matches preg_replace_callback matches array * @return string */ function _autop_newline_preservation_helper( $matches ) { return str_replace( "\n", "<WPPreserveNewline />", $matches[0] ); } /** * Don't auto-p wrap shortcodes that stand alone * * Ensures that shortcodes are not wrapped in `<p>...</p>`. * * @since 2.9.0 * * @global array $shortcode_tags * * @param string $pee The content. * @return string The filtered content. */ function shortcode_unautop( $pee ) { global $shortcode_tags; if ( empty( $shortcode_tags ) || !is_array( $shortcode_tags ) ) { return $pee; } $tagregexp = join( '|', array_map( 'preg_quote', array_keys( $shortcode_tags ) ) ); $spaces = wp_spaces_regexp(); $pattern = '/' . '<p>' // Opening paragraph . '(?:' . $spaces . ')*+' // Optional leading whitespace . '(' // 1: The shortcode . '\\[' // Opening bracket . "($tagregexp)" // 2: Shortcode name . '(?![\\w-])' // Not followed by word character or hyphen // Unroll the loop: Inside the opening shortcode tag . '[^\\]\\/]*' // Not a closing bracket or forward slash . '(?:' . '\\/(?!\\])' // A forward slash not followed by a closing bracket . '[^\\]\\/]*' // Not a closing bracket or forward slash . ')*?' . '(?:' . '\\/\\]' // Self closing tag and closing bracket . '|' . '\\]' // Closing bracket . '(?:' // Unroll the loop: Optionally, anything between the opening and closing shortcode tags . '[^\\[]*+' // Not an opening bracket . '(?:' . '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag . '[^\\[]*+' // Not an opening bracket . ')*+' . '\\[\\/\\2\\]' // Closing shortcode tag . ')?' . ')' . ')' . '(?:' . $spaces . ')*+' // optional trailing whitespace . '<\\/p>' // closing paragraph . '/'; return preg_replace( $pattern, '$1', $pee ); } /** * Checks to see if a string is utf8 encoded. * * NOTE: This function checks for 5-Byte sequences, UTF8 * has Bytes Sequences with a maximum length of 4. * * @author bmorel at ssi dot fr (modified) * @since 1.2.1 * * @param string $str The string to be checked * @return bool True if $str fits a UTF-8 model, false otherwise. */ function seems_utf8( $str ) { mbstring_binary_safe_encoding(); $length = strlen($str); reset_mbstring_encoding(); for ($i=0; $i < $length; $i++) { $c = ord($str[$i]); if ($c < 0x80) $n = 0; // 0bbbbbbb elseif (($c & 0xE0) == 0xC0) $n=1; // 110bbbbb elseif (($c & 0xF0) == 0xE0) $n=2; // 1110bbbb elseif (($c & 0xF8) == 0xF0) $n=3; // 11110bbb elseif (($c & 0xFC) == 0xF8) $n=4; // 111110bb elseif (($c & 0xFE) == 0xFC) $n=5; // 1111110b else return false; // Does not match any model for ($j=0; $j<$n; $j++) { // n bytes matching 10bbbbbb follow ? if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80)) return false; } } return true; } /** * Converts a number of special characters into their HTML entities. * * Specifically deals with: &, <, >, ", and '. * * $quote_style can be set to ENT_COMPAT to encode " to * ", or ENT_QUOTES to do both. Default is ENT_NOQUOTES where no quotes are encoded. * * @since 1.2.2 * @access private * * @staticvar string $_charset * * @param string $string The text which is to be encoded. * @param int|string $quote_style Optional. Converts double quotes if set to ENT_COMPAT, * both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. * Also compatible with old values; converting single quotes if set to 'single', * double if set to 'double' or both if otherwise set. * Default is ENT_NOQUOTES. * @param string $charset Optional. The character encoding of the string. Default is false. * @param bool $double_encode Optional. Whether to encode existing html entities. Default is false. * @return string The encoded text with HTML entities. */ function _wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = false, $double_encode = false ) { $string = (string) $string; if ( 0 === strlen( $string ) ) return ''; // Don't bother if there are no specialchars - saves some processing if ( ! preg_match( '/[&<>"\']/', $string ) ) return $string; // Account for the previous behaviour of the function when the $quote_style is not an accepted value if ( empty( $quote_style ) ) $quote_style = ENT_NOQUOTES; elseif ( ! in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) $quote_style = ENT_QUOTES; // Store the site charset as a static to avoid multiple calls to wp_load_alloptions() if ( ! $charset ) { static $_charset = null; if ( ! isset( $_charset ) ) { $alloptions = wp_load_alloptions(); $_charset = isset( $alloptions['blog_charset'] ) ? $alloptions['blog_charset'] : ''; } $charset = $_charset; } if ( in_array( $charset, array( 'utf8', 'utf-8', 'UTF8' ) ) ) $charset = 'UTF-8'; $_quote_style = $quote_style; if ( $quote_style === 'double' ) { $quote_style = ENT_COMPAT; $_quote_style = ENT_COMPAT; } elseif ( $quote_style === 'single' ) { $quote_style = ENT_NOQUOTES; } if ( ! $double_encode ) { // Guarantee every &entity; is valid, convert &garbage; into &garbage; // This is required for PHP < 5.4.0 because ENT_HTML401 flag is unavailable. $string = wp_kses_normalize_entities( $string ); } $string = @htmlspecialchars( $string, $quote_style, $charset, $double_encode ); // Back-compat. if ( 'single' === $_quote_style ) $string = str_replace( "'", ''', $string ); return $string; } /** * Converts a number of HTML entities into their special characters. * * Specifically deals with: &, <, >, ", and '. * * $quote_style can be set to ENT_COMPAT to decode " entities, * or ENT_QUOTES to do both " and '. Default is ENT_NOQUOTES where no quotes are decoded. * * @since 2.8.0 * * @param string $string The text which is to be decoded. * @param string|int $quote_style Optional. Converts double quotes if set to ENT_COMPAT, * both single and double if set to ENT_QUOTES or * none if set to ENT_NOQUOTES. * Also compatible with old _wp_specialchars() values; * converting single quotes if set to 'single', * double if set to 'double' or both if otherwise set. * Default is ENT_NOQUOTES. * @return string The decoded text without HTML entities. */ function wp_specialchars_decode( $string, $quote_style = ENT_NOQUOTES ) { $string = (string) $string; if ( 0 === strlen( $string ) ) { return ''; } // Don't bother if there are no entities - saves a lot of processing if ( strpos( $string, '&' ) === false ) { return $string; } // Match the previous behaviour of _wp_specialchars() when the $quote_style is not an accepted value if ( empty( $quote_style ) ) { $quote_style = ENT_NOQUOTES; } elseif ( !in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) { $quote_style = ENT_QUOTES; } // More complete than get_html_translation_table( HTML_SPECIALCHARS ) $single = array( ''' => '\'', ''' => '\'' ); $single_preg = array( '/�*39;/' => ''', '/�*27;/i' => ''' ); $double = array( '"' => '"', '"' => '"', '"' => '"' ); $double_preg = array( '/�*34;/' => '"', '/�*22;/i' => '"' ); $others = array( '<' => '<', '<' => '<', '>' => '>', '>' => '>', '&' => '&', '&' => '&', '&' => '&' ); $others_preg = array( '/�*60;/' => '<', '/�*62;/' => '>', '/�*38;/' => '&', '/�*26;/i' => '&' ); if ( $quote_style === ENT_QUOTES ) { $translation = array_merge( $single, $double, $others ); $translation_preg = array_merge( $single_preg, $double_preg, $others_preg ); } elseif ( $quote_style === ENT_COMPAT || $quote_style === 'double' ) { $translation = array_merge( $double, $others ); $translation_preg = array_merge( $double_preg, $others_preg ); } elseif ( $quote_style === 'single' ) { $translation = array_merge( $single, $others ); $translation_preg = array_merge( $single_preg, $others_preg ); } elseif ( $quote_style === ENT_NOQUOTES ) { $translation = $others; $translation_preg = $others_preg; } // Remove zero padding on numeric entities $string = preg_replace( array_keys( $translation_preg ), array_values( $translation_preg ), $string ); // Replace characters according to translation table return strtr( $string, $translation ); } /** * Checks for invalid UTF8 in a string. * * @since 2.8.0 * * @staticvar bool $is_utf8 * @staticvar bool $utf8_pcre * * @param string $string The text which is to be checked. * @param bool $strip Optional. Whether to attempt to strip out invalid UTF8. Default is false. * @return string The checked text. */ function wp_check_invalid_utf8( $string, $strip = false ) { $string = (string) $string; if ( 0 === strlen( $string ) ) { return ''; } // Store the site charset as a static to avoid multiple calls to get_option() static $is_utf8 = null; if ( ! isset( $is_utf8 ) ) { $is_utf8 = in_array( get_option( 'blog_charset' ), array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) ); } if ( ! $is_utf8 ) { return $string; } // Check for support for utf8 in the installed PCRE library once and store the result in a static static $utf8_pcre = null; if ( ! isset( $utf8_pcre ) ) { $utf8_pcre = @preg_match( '/^./u', 'a' ); } // We can't demand utf8 in the PCRE installation, so just return the string in those cases if ( !$utf8_pcre ) { return $string; } // preg_match fails when it encounters invalid UTF8 in $string if ( 1 === @preg_match( '/^./us', $string ) ) { return $string; } // Attempt to strip the bad chars if requested (not recommended) if ( $strip && function_exists( 'iconv' ) ) { return iconv( 'utf-8', 'utf-8', $string ); } return ''; } /** * Encode the Unicode values to be used in the URI. * * @since 1.5.0 * @since 5.8.3 Added the `encode_ascii_characters` parameter. * * @param string $utf8_string String to encode. * @param int $length Max length of the string * @param bool $encode_ascii_characters Whether to encode ascii characters such as < " ' * @return string String with Unicode encoded for URI. */ function utf8_uri_encode( $utf8_string, $length = 0, $encode_ascii_characters = false ) { $unicode = ''; $values = array(); $num_octets = 1; $unicode_length = 0; mbstring_binary_safe_encoding(); $string_length = strlen( $utf8_string ); reset_mbstring_encoding(); for ($i = 0; $i < $string_length; $i++ ) { $value = ord( $utf8_string[ $i ] ); if ( $value < 128 ) { $char = chr( $value ); $encoded_char = $encode_ascii_characters ? rawurlencode( $char ) : $char; $encoded_char_length = strlen( $encoded_char ); if ( $length && ( $unicode_length + $encoded_char_length ) > $length ) { break; } $unicode .= $encoded_char; $unicode_length += $encoded_char_length; } else { if ( count( $values ) == 0 ) { if ( $value < 224 ) { $num_octets = 2; } elseif ( $value < 240 ) { $num_octets = 3; } else { $num_octets = 4; } } $values[] = $value; if ( $length && ( $unicode_length + ($num_octets * 3) ) > $length ) break; if ( count( $values ) == $num_octets ) { for ( $j = 0; $j < $num_octets; $j++ ) { $unicode .= '%' . dechex( $values[ $j ] ); } $unicode_length += $num_octets * 3; $values = array(); $num_octets = 1; } } } return $unicode; } /** * Converts all accent characters to ASCII characters. * * If there are no accent characters, then the string given is just returned. * * **Accent characters converted:** * * Currency signs: * * | Code | Glyph | Replacement | Description | * | -------- | ----- | ----------- | ------------------- | * | U+00A3 | £ | (empty) | British Pound sign | * | U+20AC | € | E | Euro sign | * * Decompositions for Latin-1 Supplement: * * | Code | Glyph | Replacement | Description | * | ------- | ----- | ----------- | -------------------------------------- | * | U+00AA | ª | a | Feminine ordinal indicator | * | U+00BA | º | o | Masculine ordinal indicator | * | U+00C0 | À | A | Latin capital letter A with grave | * | U+00C1 | Á | A | Latin capital letter A with acute | * | U+00C2 |  | A | Latin capital letter A with circumflex | * | U+00C3 | à | A | Latin capital letter A with tilde | * | U+00C4 | Ä | A | Latin capital letter A with diaeresis | * | U+00C5 | Å | A | Latin capital letter A with ring above | * | U+00C6 | Æ | AE | Latin capital letter AE | * | U+00C7 | Ç | C | Latin capital letter C with cedilla | * | U+00C8 | È | E | Latin capital letter E with grave | * | U+00C9 | É | E | Latin capital letter E with acute | * | U+00CA | Ê | E | Latin capital letter E with circumflex | * | U+00CB | Ë | E | Latin capital letter E with diaeresis | * | U+00CC | Ì | I | Latin capital letter I with grave | * | U+00CD | Í | I | Latin capital letter I with acute | * | U+00CE | Î | I | Latin capital letter I with circumflex | * | U+00CF | Ï | I | Latin capital letter I with diaeresis | * | U+00D0 | Ð | D | Latin capital letter Eth | * | U+00D1 | Ñ | N | Latin capital letter N with tilde | * | U+00D2 | Ò | O | Latin capital letter O with grave | * | U+00D3 | Ó | O | Latin capital letter O with acute | * | U+00D4 | Ô | O | Latin capital letter O with circumflex | * | U+00D5 | Õ | O | Latin capital letter O with tilde | * | U+00D6 | Ö | O | Latin capital letter O with diaeresis | * | U+00D8 | Ø | O | Latin capital letter O with stroke | * | U+00D9 | Ù | U | Latin capital letter U with grave | * | U+00DA | Ú | U | Latin capital letter U with acute | * | U+00DB | Û | U | Latin capital letter U with circumflex | * | U+00DC | Ü | U | Latin capital letter U with diaeresis | * | U+00DD | Ý | Y | Latin capital letter Y with acute | * | U+00DE | Þ | TH | Latin capital letter Thorn | * | U+00DF | ß | s | Latin small letter sharp s | * | U+00E0 | à | a | Latin small letter a with grave | * | U+00E1 | á | a | Latin small letter a with acute | * | U+00E2 | â | a | Latin small letter a with circumflex | * | U+00E3 | ã | a | Latin small letter a with tilde | * | U+00E4 | ä | a | Latin small letter a with diaeresis | * | U+00E5 | å | a | Latin small letter a with ring above | * | U+00E6 | æ | ae | Latin small letter ae | * | U+00E7 | ç | c | Latin small letter c with cedilla | * | U+00E8 | è | e | Latin small letter e with grave | * | U+00E9 | é | e | Latin small letter e with acute | * | U+00EA | ê | e | Latin small letter e with circumflex | * | U+00EB | ë | e | Latin small letter e with diaeresis | * | U+00EC | ì | i | Latin small letter i with grave | * | U+00ED | í | i | Latin small letter i with acute | * | U+00EE | î | i | Latin small letter i with circumflex | * | U+00EF | ï | i | Latin small letter i with diaeresis | * | U+00F0 | ð | d | Latin small letter Eth | * | U+00F1 | ñ | n | Latin small letter n with tilde | * | U+00F2 | ò | o | Latin small letter o with grave | * | U+00F3 | ó | o | Latin small letter o with acute | * | U+00F4 | ô | o | Latin small letter o with circumflex | * | U+00F5 | õ | o | Latin small letter o with tilde | * | U+00F6 | ö | o | Latin small letter o with diaeresis | * | U+00F8 | ø | o | Latin small letter o with stroke | * | U+00F9 | ù | u | Latin small letter u with grave | * | U+00FA | ú | u | Latin small letter u with acute | * | U+00FB | û | u | Latin small letter u with circumflex | * | U+00FC | ü | u | Latin small letter u with diaeresis | * | U+00FD | ý | y | Latin small letter y with acute | * | U+00FE | þ | th | Latin small letter Thorn | * | U+00FF | ÿ | y | Latin small letter y with diaeresis | * * Decompositions for Latin Extended-A: * * | Code | Glyph | Replacement | Description | * | ------- | ----- | ----------- | ------------------------------------------------- | * | U+0100 | Ā | A | Latin capital letter A with macron | * | U+0101 | ā | a | Latin small letter a with macron | * | U+0102 | Ă | A | Latin capital letter A with breve | * | U+0103 | ă | a | Latin small letter a with breve | * | U+0104 | Ą | A | Latin capital letter A with ogonek | * | U+0105 | ą | a | Latin small letter a with ogonek | * | U+01006 | Ć | C | Latin capital letter C with acute | * | U+0107 | ć | c | Latin small letter c with acute | * | U+0108 | Ĉ | C | Latin capital letter C with circumflex | * | U+0109 | ĉ | c | Latin small letter c with circumflex | * | U+010A | Ċ | C | Latin capital letter C with dot above | * | U+010B | ċ | c | Latin small letter c with dot above | * | U+010C | Č | C | Latin capital letter C with caron | * | U+010D | č | c | Latin small letter c with caron | * | U+010E | Ď | D | Latin capital letter D with caron | * | U+010F | ď | d | Latin small letter d with caron | * | U+0110 | Đ | D | Latin capital letter D with stroke | * | U+0111 | đ | d | Latin small letter d with stroke | * | U+0112 | Ē | E | Latin capital letter E with macron | * | U+0113 | ē | e | Latin small letter e with macron | * | U+0114 | Ĕ | E | Latin capital letter E with breve | * | U+0115 | ĕ | e | Latin small letter e with breve | * | U+0116 | Ė | E | Latin capital letter E with dot above | * | U+0117 | ė | e | Latin small letter e with dot above | * | U+0118 | Ę | E | Latin capital letter E with ogonek | * | U+0119 | ę | e | Latin small letter e with ogonek | * | U+011A | Ě | E | Latin capital letter E with caron | * | U+011B | ě | e | Latin small letter e with caron | * | U+011C | Ĝ | G | Latin capital letter G with circumflex | * | U+011D | ĝ | g | Latin small letter g with circumflex | * | U+011E | Ğ | G | Latin capital letter G with breve | * | U+011F | ğ | g | Latin small letter g with breve | * | U+0120 | Ġ | G | Latin capital letter G with dot above | * | U+0121 | ġ | g | Latin small letter g with dot above | * | U+0122 | Ģ | G | Latin capital letter G with cedilla | * | U+0123 | ģ | g | Latin small letter g with cedilla | * | U+0124 | Ĥ | H | Latin capital letter H with circumflex | * | U+0125 | ĥ | h | Latin small letter h with circumflex | * | U+0126 | Ħ | H | Latin capital letter H with stroke | * | U+0127 | ħ | h | Latin small letter h with stroke | * | U+0128 | Ĩ | I | Latin capital letter I with tilde | * | U+0129 | ĩ | i | Latin small letter i with tilde | * | U+012A | Ī | I | Latin capital letter I with macron | * | U+012B | ī | i | Latin small letter i with macron | * | U+012C | Ĭ | I | Latin capital letter I with breve | * | U+012D | ĭ | i | Latin small letter i with breve | * | U+012E | Į | I | Latin capital letter I with ogonek | * | U+012F | į | i | Latin small letter i with ogonek | * | U+0130 | İ | I | Latin capital letter I with dot above | * | U+0131 | ı | i | Latin small letter dotless i | * | U+0132 | IJ | IJ | Latin capital ligature IJ | * | U+0133 | ij | ij | Latin small ligature ij | * | U+0134 | Ĵ | J | Latin capital letter J with circumflex | * | U+0135 | ĵ | j | Latin small letter j with circumflex | * | U+0136 | Ķ | K | Latin capital letter K with cedilla | * | U+0137 | ķ | k | Latin small letter k with cedilla | * | U+0138 | ĸ | k | Latin small letter Kra | * | U+0139 | Ĺ | L | Latin capital letter L with acute | * | U+013A | ĺ | l | Latin small letter l with acute | * | U+013B | Ļ | L | Latin capital letter L with cedilla | * | U+013C | ļ | l | Latin small letter l with cedilla | * | U+013D | Ľ | L | Latin capital letter L with caron | * | U+013E | ľ | l | Latin small letter l with caron | * | U+013F | Ŀ | L | Latin capital letter L with middle dot | * | U+0140 | ŀ | l | Latin small letter l with middle dot | * | U+0141 | Ł | L | Latin capital letter L with stroke | * | U+0142 | ł | l | Latin small letter l with stroke | * | U+0143 | Ń | N | Latin capital letter N with acute | * | U+0144 | ń | n | Latin small letter N with acute | * | U+0145 | Ņ | N | Latin capital letter N with cedilla | * | U+0146 | ņ | n | Latin small letter n with cedilla | * | U+0147 | Ň | N | Latin capital letter N with caron | * | U+0148 | ň | n | Latin small letter n with caron | * | U+0149 | ʼn | N | Latin small letter n preceded by apostrophe | * | U+014A | Ŋ | n | Latin capital letter Eng | * | U+014B | ŋ | N | Latin small letter Eng | * | U+014C | Ō | O | Latin capital letter O with macron | * | U+014D | ō | o | Latin small letter o with macron | * | U+014E | Ŏ | O | Latin capital letter O with breve | * | U+014F | ŏ | o | Latin small letter o with breve | * | U+0150 | Ő | O | Latin capital letter O with double acute | * | U+0151 | ő | o | Latin small letter o with double acute | * | U+0152 | Œ | OE | Latin capital ligature OE | * | U+0153 | œ | oe | Latin small ligature oe | * | U+0154 | Ŕ | R | Latin capital letter R with acute | * | U+0155 | ŕ | r | Latin small letter r with acute | * | U+0156 | Ŗ | R | Latin capital letter R with cedilla | * | U+0157 | ŗ | r | Latin small letter r with cedilla | * | U+0158 | Ř | R | Latin capital letter R with caron | * | U+0159 | ř | r | Latin small letter r with caron | * | U+015A | Ś | S | Latin capital letter S with acute | * | U+015B | ś | s | Latin small letter s with acute | * | U+015C | Ŝ | S | Latin capital letter S with circumflex | * | U+015D | ŝ | s | Latin small letter s with circumflex | * | U+015E | Ş | S | Latin capital letter S with cedilla | * | U+015F | ş | s | Latin small letter s with cedilla | * | U+0160 | Š | S | Latin capital letter S with caron | * | U+0161 | š | s | Latin small letter s with caron | * | U+0162 | Ţ | T | Latin capital letter T with cedilla | * | U+0163 | ţ | t | Latin small letter t with cedilla | * | U+0164 | Ť | T | Latin capital letter T with caron | * | U+0165 | ť | t | Latin small letter t with caron | * | U+0166 | Ŧ | T | Latin capital letter T with stroke | * | U+0167 | ŧ | t | Latin small letter t with stroke | * | U+0168 | Ũ | U | Latin capital letter U with tilde | * | U+0169 | ũ | u | Latin small letter u with tilde | * | U+016A | Ū | U | Latin capital letter U with macron | * | U+016B | ū | u | Latin small letter u with macron | * | U+016C | Ŭ | U | Latin capital letter U with breve | * | U+016D | ŭ | u | Latin small letter u with breve | * | U+016E | Ů | U | Latin capital letter U with ring above | * | U+016F | ů | u | Latin small letter u with ring above | * | U+0170 | Ű | U | Latin capital letter U with double acute | * | U+0171 | ű | u | Latin small letter u with double acute | * | U+0172 | Ų | U | Latin capital letter U with ogonek | * | U+0173 | ų | u | Latin small letter u with ogonek | * | U+0174 | Ŵ | W | Latin capital letter W with circumflex | * | U+0175 | ŵ | w | Latin small letter w with circumflex | * | U+0176 | Ŷ | Y | Latin capital letter Y with circumflex | * | U+0177 | ŷ | y | Latin small letter y with circumflex | * | U+0178 | Ÿ | Y | Latin capital letter Y with diaeresis | * | U+0179 | Ź | Z | Latin capital letter Z with acute | * | U+017A | ź | z | Latin small letter z with acute | * | U+017B | Ż | Z | Latin capital letter Z with dot above | * | U+017C | ż | z | Latin small letter z with dot above | * | U+017D | Ž | Z | Latin capital letter Z with caron | * | U+017E | ž | z | Latin small letter z with caron | * | U+017F | ſ | s | Latin small letter long s | * | U+01A0 | Ơ | O | Latin capital letter O with horn | * | U+01A1 | ơ | o | Latin small letter o with horn | * | U+01AF | Ư | U | Latin capital letter U with horn | * | U+01B0 | ư | u | Latin small letter u with horn | * | U+01CD | Ǎ | A | Latin capital letter A with caron | * | U+01CE | ǎ | a | Latin small letter a with caron | * | U+01CF | Ǐ | I | Latin capital letter I with caron | * | U+01D0 | ǐ | i | Latin small letter i with caron | * | U+01D1 | Ǒ | O | Latin capital letter O with caron | * | U+01D2 | ǒ | o | Latin small letter o with caron | * | U+01D3 | Ǔ | U | Latin capital letter U with caron | * | U+01D4 | ǔ | u | Latin small letter u with caron | * | U+01D5 | Ǖ | U | Latin capital letter U with diaeresis and macron | * | U+01D6 | ǖ | u | Latin small letter u with diaeresis and macron | * | U+01D7 | Ǘ | U | Latin capital letter U with diaeresis and acute | * | U+01D8 | ǘ | u | Latin small letter u with diaeresis and acute | * | U+01D9 | Ǚ | U | Latin capital letter U with diaeresis and caron | * | U+01DA | ǚ | u | Latin small letter u with diaeresis and caron | * | U+01DB | Ǜ | U | Latin capital letter U with diaeresis and grave | * | U+01DC | ǜ | u | Latin small letter u with diaeresis and grave | * * Decompositions for Latin Extended-B: * * | Code | Glyph | Replacement | Description | * | -------- | ----- | ----------- | ----------------------------------------- | * | U+0218 | Ș | S | Latin capital letter S with comma below | * | U+0219 | ș | s | Latin small letter s with comma below | * | U+021A | Ț | T | Latin capital letter T with comma below | * | U+021B | ț | t | Latin small letter t with comma below | * * Vowels with diacritic (Chinese, Hanyu Pinyin): * * | Code | Glyph | Replacement | Description | * | -------- | ----- | ----------- | ----------------------------------------------------- | * | U+0251 | ɑ | a | Latin small letter alpha | * | U+1EA0 | Ạ | A | Latin capital letter A with dot below | * | U+1EA1 | ạ | a | Latin small letter a with dot below | * | U+1EA2 | Ả | A | Latin capital letter A with hook above | * | U+1EA3 | ả | a | Latin small letter a with hook above | * | U+1EA4 | Ấ | A | Latin capital letter A with circumflex and acute | * | U+1EA5 | ấ | a | Latin small letter a with circumflex and acute | * | U+1EA6 | Ầ | A | Latin capital letter A with circumflex and grave | * | U+1EA7 | ầ | a | Latin small letter a with circumflex and grave | * | U+1EA8 | Ẩ | A | Latin capital letter A with circumflex and hook above | * | U+1EA9 | ẩ | a | Latin small letter a with circumflex and hook above | * | U+1EAA | Ẫ | A | Latin capital letter A with circumflex and tilde | * | U+1EAB | ẫ | a | Latin small letter a with circumflex and tilde | * | U+1EA6 | Ậ | A | Latin capital letter A with circumflex and dot below | * | U+1EAD | ậ | a | Latin small letter a with circumflex and dot below | * | U+1EAE | Ắ | A | Latin capital letter A with breve and acute | * | U+1EAF | ắ | a | Latin small letter a with breve and acute | * | U+1EB0 | Ằ | A | Latin capital letter A with breve and grave | * | U+1EB1 | ằ | a | Latin small letter a with breve and grave | * | U+1EB2 | Ẳ | A | Latin capital letter A with breve and hook above | * | U+1EB3 | ẳ | a | Latin small letter a with breve and hook above | * | U+1EB4 | Ẵ | A | Latin capital letter A with breve and tilde | * | U+1EB5 | ẵ | a | Latin small letter a with breve and tilde | * | U+1EB6 | Ặ | A | Latin capital letter A with breve and dot below | * | U+1EB7 | ặ | a | Latin small letter a with breve and dot below | * | U+1EB8 | Ẹ | E | Latin capital letter E with dot below | * | U+1EB9 | ẹ | e | Latin small letter e with dot below | * | U+1EBA | Ẻ | E | Latin capital letter E with hook above | * | U+1EBB | ẻ | e | Latin small letter e with hook above | * | U+1EBC | Ẽ | E | Latin capital letter E with tilde | * | U+1EBD | ẽ | e | Latin small letter e with tilde | * | U+1EBE | Ế | E | Latin capital letter E with circumflex and acute | * | U+1EBF | ế | e | Latin small letter e with circumflex and acute | * | U+1EC0 | Ề | E | Latin capital letter E with circumflex and grave | * | U+1EC1 | ề | e | Latin small letter e with circumflex and grave | * | U+1EC2 | Ể | E | Latin capital letter E with circumflex and hook above | * | U+1EC3 | ể | e | Latin small letter e with circumflex and hook above | * | U+1EC4 | Ễ | E | Latin capital letter E with circumflex and tilde | * | U+1EC5 | ễ | e | Latin small letter e with circumflex and tilde | * | U+1EC6 | Ệ | E | Latin capital letter E with circumflex and dot below | * | U+1EC7 | ệ | e | Latin small letter e with circumflex and dot below | * | U+1EC8 | Ỉ | I | Latin capital letter I with hook above | * | U+1EC9 | ỉ | i | Latin small letter i with hook above | * | U+1ECA | Ị | I | Latin capital letter I with dot below | * | U+1ECB | ị | i | Latin small letter i with dot below | * | U+1ECC | Ọ | O | Latin capital letter O with dot below | * | U+1ECD | ọ | o | Latin small letter o with dot below | * | U+1ECE | Ỏ | O | Latin capital letter O with hook above | * | U+1ECF | ỏ | o | Latin small letter o with hook above | * | U+1ED0 | Ố | O | Latin capital letter O with circumflex and acute | * | U+1ED1 | ố | o | Latin small letter o with circumflex and acute | * | U+1ED2 | Ồ | O | Latin capital letter O with circumflex and grave | * | U+1ED3 | ồ | o | Latin small letter o with circumflex and grave | * | U+1ED4 | Ổ | O | Latin capital letter O with circumflex and hook above | * | U+1ED5 | ổ | o | Latin small letter o with circumflex and hook above | * | U+1ED6 | Ỗ | O | Latin capital letter O with circumflex and tilde | * | U+1ED7 | ỗ | o | Latin small letter o with circumflex and tilde | * | U+1ED8 | Ộ | O | Latin capital letter O with circumflex and dot below | * | U+1ED9 | ộ | o | Latin small letter o with circumflex and dot below | * | U+1EDA | Ớ | O | Latin capital letter O with horn and acute | * | U+1EDB | ớ | o | Latin small letter o with horn and acute | * | U+1EDC | Ờ | O | Latin capital letter O with horn and grave | * | U+1EDD | ờ | o | Latin small letter o with horn and grave | * | U+1EDE | Ở | O | Latin capital letter O with horn and hook above | * | U+1EDF | ở | o | Latin small letter o with horn and hook above | * | U+1EE0 | Ỡ | O | Latin capital letter O with horn and tilde | * | U+1EE1 | ỡ | o | Latin small letter o with horn and tilde | * | U+1EE2 | Ợ | O | Latin capital letter O with horn and dot below | * | U+1EE3 | ợ | o | Latin small letter o with horn and dot below | * | U+1EE4 | Ụ | U | Latin capital letter U with dot below | * | U+1EE5 | ụ | u | Latin small letter u with dot below | * | U+1EE6 | Ủ | U | Latin capital letter U with hook above | * | U+1EE7 | ủ | u | Latin small letter u with hook above | * | U+1EE8 | Ứ | U | Latin capital letter U with horn and acute | * | U+1EE9 | ứ | u | Latin small letter u with horn and acute | * | U+1EEA | Ừ | U | Latin capital letter U with horn and grave | * | U+1EEB | ừ | u | Latin small letter u with horn and grave | * | U+1EEC | Ử | U | Latin capital letter U with horn and hook above | * | U+1EED | ử | u | Latin small letter u with horn and hook above | * | U+1EEE | Ữ | U | Latin capital letter U with horn and tilde | * | U+1EEF | ữ | u | Latin small letter u with horn and tilde | * | U+1EF0 | Ự | U | Latin capital letter U with horn and dot below | * | U+1EF1 | ự | u | Latin small letter u with horn and dot below | * | U+1EF2 | Ỳ | Y | Latin capital letter Y with grave | * | U+1EF3 | ỳ | y | Latin small letter y with grave | * | U+1EF4 | Ỵ | Y | Latin capital letter Y with dot below | * | U+1EF5 | ỵ | y | Latin small letter y with dot below | * | U+1EF6 | Ỷ | Y | Latin capital letter Y with hook above | * | U+1EF7 | ỷ | y | Latin small letter y with hook above | * | U+1EF8 | Ỹ | Y | Latin capital letter Y with tilde | * | U+1EF9 | ỹ | y | Latin small letter y with tilde | * * German (`de_DE`), German formal (`de_DE_formal`), German (Switzerland) formal (`de_CH`), * and German (Switzerland) informal (`de_CH_informal`) locales: * * | Code | Glyph | Replacement | Description | * | -------- | ----- | ----------- | --------------------------------------- | * | U+00C4 | Ä | Ae | Latin capital letter A with diaeresis | * | U+00E4 | ä | ae | Latin small letter a with diaeresis | * | U+00D6 | Ö | Oe | Latin capital letter O with diaeresis | * | U+00F6 | ö | oe | Latin small letter o with diaeresis | * | U+00DC | Ü | Ue | Latin capital letter U with diaeresis | * | U+00FC | ü | ue | Latin small letter u with diaeresis | * | U+00DF | ß | ss | Latin small letter sharp s | * * Danish (`da_DK`) locale: * * | Code | Glyph | Replacement | Description | * | -------- | ----- | ----------- | --------------------------------------- | * | U+00C6 | Æ | Ae | Latin capital letter AE | * | U+00E6 | æ | ae | Latin small letter ae | * | U+00D8 | Ø | Oe | Latin capital letter O with stroke | * | U+00F8 | ø | oe | Latin small letter o with stroke | * | U+00C5 | Å | Aa | Latin capital letter A with ring above | * | U+00E5 | å | aa | Latin small letter a with ring above | * * Catalan (`ca`) locale: * * | Code | Glyph | Replacement | Description | * | -------- | ----- | ----------- | --------------------------------------- | * | U+00B7 | l·l | ll | Flown dot (between two Ls) | * * @since 1.2.1 * @since 4.6.0 Added locale support for `de_CH`, `de_CH_informal`, and `ca`. * * @param string $string Text that might have accent characters * @return string Filtered string with replaced "nice" characters. */ function remove_accents( $string ) { if ( !preg_match('/[\x80-\xff]/', $string) ) return $string; if (seems_utf8($string)) { $chars = array( // Decompositions for Latin-1 Supplement chr(194).chr(170) => 'a', chr(194).chr(186) => 'o', chr(195).chr(128) => 'A', chr(195).chr(129) => 'A', chr(195).chr(130) => 'A', chr(195).chr(131) => 'A', chr(195).chr(132) => 'A', chr(195).chr(133) => 'A', chr(195).chr(134) => 'AE',chr(195).chr(135) => 'C', chr(195).chr(136) => 'E', chr(195).chr(137) => 'E', chr(195).chr(138) => 'E', chr(195).chr(139) => 'E', chr(195).chr(140) => 'I', chr(195).chr(141) => 'I', chr(195).chr(142) => 'I', chr(195).chr(143) => 'I', chr(195).chr(144) => 'D', chr(195).chr(145) => 'N', chr(195).chr(146) => 'O', chr(195).chr(147) => 'O', chr(195).chr(148) => 'O', chr(195).chr(149) => 'O', chr(195).chr(150) => 'O', chr(195).chr(153) => 'U', chr(195).chr(154) => 'U', chr(195).chr(155) => 'U', chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y', chr(195).chr(158) => 'TH',chr(195).chr(159) => 's', chr(195).chr(160) => 'a', chr(195).chr(161) => 'a', chr(195).chr(162) => 'a', chr(195).chr(163) => 'a', chr(195).chr(164) => 'a', chr(195).chr(165) => 'a', chr(195).chr(166) => 'ae',chr(195).chr(167) => 'c', chr(195).chr(168) => 'e', chr(195).chr(169) => 'e', chr(195).chr(170) => 'e', chr(195).chr(171) => 'e', chr(195).chr(172) => 'i', chr(195).chr(173) => 'i', chr(195).chr(174) => 'i', chr(195).chr(175) => 'i', chr(195).chr(176) => 'd', chr(195).chr(177) => 'n', chr(195).chr(178) => 'o', chr(195).chr(179) => 'o', chr(195).chr(180) => 'o', chr(195).chr(181) => 'o', chr(195).chr(182) => 'o', chr(195).chr(184) => 'o', chr(195).chr(185) => 'u', chr(195).chr(186) => 'u', chr(195).chr(187) => 'u', chr(195).chr(188) => 'u', chr(195).chr(189) => 'y', chr(195).chr(190) => 'th', chr(195).chr(191) => 'y', chr(195).chr(152) => 'O', // Decompositions for Latin Extended-A chr(196).chr(128) => 'A', chr(196).chr(129) => 'a', chr(196).chr(130) => 'A', chr(196).chr(131) => 'a', chr(196).chr(132) => 'A', chr(196).chr(133) => 'a', chr(196).chr(134) => 'C', chr(196).chr(135) => 'c', chr(196).chr(136) => 'C', chr(196).chr(137) => 'c', chr(196).chr(138) => 'C', chr(196).chr(139) => 'c', chr(196).chr(140) => 'C', chr(196).chr(141) => 'c', chr(196).chr(142) => 'D', chr(196).chr(143) => 'd', chr(196).chr(144) => 'D', chr(196).chr(145) => 'd', chr(196).chr(146) => 'E', chr(196).chr(147) => 'e', chr(196).chr(148) => 'E', chr(196).chr(149) => 'e', chr(196).chr(150) => 'E', chr(196).chr(151) => 'e', chr(196).chr(152) => 'E', chr(196).chr(153) => 'e', chr(196).chr(154) => 'E', chr(196).chr(155) => 'e', chr(196).chr(156) => 'G', chr(196).chr(157) => 'g', chr(196).chr(158) => 'G', chr(196).chr(159) => 'g', chr(196).chr(160) => 'G', chr(196).chr(161) => 'g', chr(196).chr(162) => 'G', chr(196).chr(163) => 'g', chr(196).chr(164) => 'H', chr(196).chr(165) => 'h', chr(196).chr(166) => 'H', chr(196).chr(167) => 'h', chr(196).chr(168) => 'I', chr(196).chr(169) => 'i', chr(196).chr(170) => 'I', chr(196).chr(171) => 'i', chr(196).chr(172) => 'I', chr(196).chr(173) => 'i', chr(196).chr(174) => 'I', chr(196).chr(175) => 'i', chr(196).chr(176) => 'I', chr(196).chr(177) => 'i', chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij', chr(196).chr(180) => 'J', chr(196).chr(181) => 'j', chr(196).chr(182) => 'K', chr(196).chr(183) => 'k', chr(196).chr(184) => 'k', chr(196).chr(185) => 'L', chr(196).chr(186) => 'l', chr(196).chr(187) => 'L', chr(196).chr(188) => 'l', chr(196).chr(189) => 'L', chr(196).chr(190) => 'l', chr(196).chr(191) => 'L', chr(197).chr(128) => 'l', chr(197).chr(129) => 'L', chr(197).chr(130) => 'l', chr(197).chr(131) => 'N', chr(197).chr(132) => 'n', chr(197).chr(133) => 'N', chr(197).chr(134) => 'n', chr(197).chr(135) => 'N', chr(197).chr(136) => 'n', chr(197).chr(137) => 'N', chr(197).chr(138) => 'n', chr(197).chr(139) => 'N', chr(197).chr(140) => 'O', chr(197).chr(141) => 'o', chr(197).chr(142) => 'O', chr(197).chr(143) => 'o', chr(197).chr(144) => 'O', chr(197).chr(145) => 'o', chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe', chr(197).chr(148) => 'R',chr(197).chr(149) => 'r', chr(197).chr(150) => 'R',chr(197).chr(151) => 'r', chr(197).chr(152) => 'R',chr(197).chr(153) => 'r', chr(197).chr(154) => 'S',chr(197).chr(155) => 's', chr(197).chr(156) => 'S',chr(197).chr(157) => 's', chr(197).chr(158) => 'S',chr(197).chr(159) => 's', chr(197).chr(160) => 'S', chr(197).chr(161) => 's', chr(197).chr(162) => 'T', chr(197).chr(163) => 't', chr(197).chr(164) => 'T', chr(197).chr(165) => 't', chr(197).chr(166) => 'T', chr(197).chr(167) => 't', chr(197).chr(168) => 'U', chr(197).chr(169) => 'u', chr(197).chr(170) => 'U', chr(197).chr(171) => 'u', chr(197).chr(172) => 'U', chr(197).chr(173) => 'u', chr(197).chr(174) => 'U', chr(197).chr(175) => 'u', chr(197).chr(176) => 'U', chr(197).chr(177) => 'u', chr(197).chr(178) => 'U', chr(197).chr(179) => 'u', chr(197).chr(180) => 'W', chr(197).chr(181) => 'w', chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y', chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z', chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z', chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z', chr(197).chr(190) => 'z', chr(197).chr(191) => 's', // Decompositions for Latin Extended-B chr(200).chr(152) => 'S', chr(200).chr(153) => 's', chr(200).chr(154) => 'T', chr(200).chr(155) => 't', // Euro Sign chr(226).chr(130).chr(172) => 'E', // GBP (Pound) Sign chr(194).chr(163) => '', // Vowels with diacritic (Vietnamese) // unmarked chr(198).chr(160) => 'O', chr(198).chr(161) => 'o', chr(198).chr(175) => 'U', chr(198).chr(176) => 'u', // grave accent chr(225).chr(186).chr(166) => 'A', chr(225).chr(186).chr(167) => 'a', chr(225).chr(186).chr(176) => 'A', chr(225).chr(186).chr(177) => 'a', chr(225).chr(187).chr(128) => 'E', chr(225).chr(187).chr(129) => 'e', chr(225).chr(187).chr(146) => 'O', chr(225).chr(187).chr(147) => 'o', chr(225).chr(187).chr(156) => 'O', chr(225).chr(187).chr(157) => 'o', chr(225).chr(187).chr(170) => 'U', chr(225).chr(187).chr(171) => 'u', chr(225).chr(187).chr(178) => 'Y', chr(225).chr(187).chr(179) => 'y', // hook chr(225).chr(186).chr(162) => 'A', chr(225).chr(186).chr(163) => 'a', chr(225).chr(186).chr(168) => 'A', chr(225).chr(186).chr(169) => 'a', chr(225).chr(186).chr(178) => 'A', chr(225).chr(186).chr(179) => 'a', chr(225).chr(186).chr(186) => 'E', chr(225).chr(186).chr(187) => 'e', chr(225).chr(187).chr(130) => 'E', chr(225).chr(187).chr(131) => 'e', chr(225).chr(187).chr(136) => 'I', chr(225).chr(187).chr(137) => 'i', chr(225).chr(187).chr(142) => 'O', chr(225).chr(187).chr(143) => 'o', chr(225).chr(187).chr(148) => 'O', chr(225).chr(187).chr(149) => 'o', chr(225).chr(187).chr(158) => 'O', chr(225).chr(187).chr(159) => 'o', chr(225).chr(187).chr(166) => 'U', chr(225).chr(187).chr(167) => 'u', chr(225).chr(187).chr(172) => 'U', chr(225).chr(187).chr(173) => 'u', chr(225).chr(187).chr(182) => 'Y', chr(225).chr(187).chr(183) => 'y', // tilde chr(225).chr(186).chr(170) => 'A', chr(225).chr(186).chr(171) => 'a', chr(225).chr(186).chr(180) => 'A', chr(225).chr(186).chr(181) => 'a', chr(225).chr(186).chr(188) => 'E', chr(225).chr(186).chr(189) => 'e', chr(225).chr(187).chr(132) => 'E', chr(225).chr(187).chr(133) => 'e', chr(225).chr(187).chr(150) => 'O', chr(225).chr(187).chr(151) => 'o', chr(225).chr(187).chr(160) => 'O', chr(225).chr(187).chr(161) => 'o', chr(225).chr(187).chr(174) => 'U', chr(225).chr(187).chr(175) => 'u', chr(225).chr(187).chr(184) => 'Y', chr(225).chr(187).chr(185) => 'y', // acute accent chr(225).chr(186).chr(164) => 'A', chr(225).chr(186).chr(165) => 'a', chr(225).chr(186).chr(174) => 'A', chr(225).chr(186).chr(175) => 'a', chr(225).chr(186).chr(190) => 'E', chr(225).chr(186).chr(191) => 'e', chr(225).chr(187).chr(144) => 'O', chr(225).chr(187).chr(145) => 'o', chr(225).chr(187).chr(154) => 'O', chr(225).chr(187).chr(155) => 'o', chr(225).chr(187).chr(168) => 'U', chr(225).chr(187).chr(169) => 'u', // dot below chr(225).chr(186).chr(160) => 'A', chr(225).chr(186).chr(161) => 'a', chr(225).chr(186).chr(172) => 'A', chr(225).chr(186).chr(173) => 'a', chr(225).chr(186).chr(182) => 'A', chr(225).chr(186).chr(183) => 'a', chr(225).chr(186).chr(184) => 'E', chr(225).chr(186).chr(185) => 'e', chr(225).chr(187).chr(134) => 'E', chr(225).chr(187).chr(135) => 'e', chr(225).chr(187).chr(138) => 'I', chr(225).chr(187).chr(139) => 'i', chr(225).chr(187).chr(140) => 'O', chr(225).chr(187).chr(141) => 'o', chr(225).chr(187).chr(152) => 'O', chr(225).chr(187).chr(153) => 'o', chr(225).chr(187).chr(162) => 'O', chr(225).chr(187).chr(163) => 'o', chr(225).chr(187).chr(164) => 'U', chr(225).chr(187).chr(165) => 'u', chr(225).chr(187).chr(176) => 'U', chr(225).chr(187).chr(177) => 'u', chr(225).chr(187).chr(180) => 'Y', chr(225).chr(187).chr(181) => 'y', // Vowels with diacritic (Chinese, Hanyu Pinyin) chr(201).chr(145) => 'a', // macron chr(199).chr(149) => 'U', chr(199).chr(150) => 'u', // acute accent chr(199).chr(151) => 'U', chr(199).chr(152) => 'u', // caron chr(199).chr(141) => 'A', chr(199).chr(142) => 'a', chr(199).chr(143) => 'I', chr(199).chr(144) => 'i', chr(199).chr(145) => 'O', chr(199).chr(146) => 'o', chr(199).chr(147) => 'U', chr(199).chr(148) => 'u', chr(199).chr(153) => 'U', chr(199).chr(154) => 'u', // grave accent chr(199).chr(155) => 'U', chr(199).chr(156) => 'u', ); // Used for locale-specific rules $locale = get_locale(); if ( 'de_DE' == $locale || 'de_DE_formal' == $locale || 'de_CH' == $locale || 'de_CH_informal' == $locale ) { $chars[ chr(195).chr(132) ] = 'Ae'; $chars[ chr(195).chr(164) ] = 'ae'; $chars[ chr(195).chr(150) ] = 'Oe'; $chars[ chr(195).chr(182) ] = 'oe'; $chars[ chr(195).chr(156) ] = 'Ue'; $chars[ chr(195).chr(188) ] = 'ue'; $chars[ chr(195).chr(159) ] = 'ss'; } elseif ( 'da_DK' === $locale ) { $chars[ chr(195).chr(134) ] = 'Ae'; $chars[ chr(195).chr(166) ] = 'ae'; $chars[ chr(195).chr(152) ] = 'Oe'; $chars[ chr(195).chr(184) ] = 'oe'; $chars[ chr(195).chr(133) ] = 'Aa'; $chars[ chr(195).chr(165) ] = 'aa'; } elseif ( 'ca' === $locale ) { $chars[ chr(108).chr(194).chr(183).chr(108) ] = 'll'; } $string = strtr($string, $chars); } else { $chars = array(); // Assume ISO-8859-1 if not UTF-8 $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158) .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194) .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202) .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210) .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218) .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227) .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235) .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243) .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251) .chr(252).chr(253).chr(255); $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy"; $string = strtr($string, $chars['in'], $chars['out']); $double_chars = array(); $double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254)); $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th'); $string = str_replace($double_chars['in'], $double_chars['out'], $string); } return $string; } /** * Sanitizes a filename, replacing whitespace with dashes. * * Removes special characters that are illegal in filenames on certain * operating systems and special characters requiring special escaping * to manipulate at the command line. Replaces spaces and consecutive * dashes with a single dash. Trims period, dash and underscore from beginning * and end of filename. It is not guaranteed that this function will return a * filename that is allowed to be uploaded. * * @since 2.1.0 * * @param string $filename The filename to be sanitized * @return string The sanitized filename */ function sanitize_file_name( $filename ) { $filename_raw = $filename; $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", "%", "+", chr(0)); // Check for support for utf8 in the installed PCRE library once and store the result in a static. static $utf8_pcre = null; if ( ! isset( $utf8_pcre ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged $utf8_pcre = @preg_match( '/^./u', 'a' ); } if ( ! seems_utf8( $filename ) ) { $_ext = pathinfo( $filename, PATHINFO_EXTENSION ); $_name = pathinfo( $filename, PATHINFO_FILENAME ); $filename = sanitize_title_with_dashes( $_name ) . '.' . $_ext; } if ( $utf8_pcre ) { $filename = preg_replace( "#\x{00a0}#siu", ' ', $filename ); } /** * Filters the list of characters to remove from a filename. * * @since 2.8.0 * * @param array $special_chars Characters to remove. * @param string $filename_raw Filename as it was passed into sanitize_file_name(). */ $special_chars = apply_filters( 'sanitize_file_name_chars', $special_chars, $filename_raw ); $filename = str_replace( $special_chars, '', $filename ); $filename = str_replace( array( '%20', '+' ), '-', $filename ); $filename = preg_replace( '/[\r\n\t -]+/', '-', $filename ); $filename = trim( $filename, '.-_' ); if ( false === strpos( $filename, '.' ) ) { $mime_types = wp_get_mime_types(); $filetype = wp_check_filetype( 'test.' . $filename, $mime_types ); if ( $filetype['ext'] === $filename ) { $filename = 'unnamed-file.' . $filetype['ext']; } } // Split the filename into a base and extension[s] $parts = explode('.', $filename); // Return if only one extension if ( count( $parts ) <= 2 ) { /** * Filters a sanitized filename string. * * @since 2.8.0 * * @param string $filename Sanitized filename. * @param string $filename_raw The filename prior to sanitization. */ return apply_filters( 'sanitize_file_name', $filename, $filename_raw ); } // Process multiple extensions $filename = array_shift($parts); $extension = array_pop($parts); $mimes = get_allowed_mime_types(); /* * Loop over any intermediate extensions. Postfix them with a trailing underscore * if they are a 2 - 5 character long alpha string not in the extension whitelist. */ foreach ( (array) $parts as $part) { $filename .= '.' . $part; if ( preg_match("/^[a-zA-Z]{2,5}\d?$/", $part) ) { $allowed = false; foreach ( $mimes as $ext_preg => $mime_match ) { $ext_preg = '!^(' . $ext_preg . ')$!i'; if ( preg_match( $ext_preg, $part ) ) { $allowed = true; break; } } if ( !$allowed ) $filename .= '_'; } } $filename .= '.' . $extension; /** This filter is documented in wp-includes/formatting.php */ return apply_filters('sanitize_file_name', $filename, $filename_raw); } /** * Sanitizes a username, stripping out unsafe characters. * * Removes tags, octets, entities, and if strict is enabled, will only keep * alphanumeric, _, space, ., -, @. After sanitizing, it passes the username, * raw username (the username in the parameter), and the value of $strict as * parameters for the {@see 'sanitize_user'} filter. * * @since 2.0.0 * * @param string $username The username to be sanitized. * @param bool $strict If set limits $username to specific characters. Default false. * @return string The sanitized username, after passing through filters. */ function sanitize_user( $username, $strict = false ) { $raw_username = $username; $username = wp_strip_all_tags( $username ); $username = remove_accents( $username ); // Kill octets $username = preg_replace( '|%([a-fA-F0-9][a-fA-F0-9])|', '', $username ); $username = preg_replace( '/&.+?;/', '', $username ); // Kill entities // If strict, reduce to ASCII for max portability. if ( $strict ) $username = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $username ); $username = trim( $username ); // Consolidate contiguous whitespace $username = preg_replace( '|\s+|', ' ', $username ); /** * Filters a sanitized username string. * * @since 2.0.1 * * @param string $username Sanitized username. * @param string $raw_username The username prior to sanitization. * @param bool $strict Whether to limit the sanitization to specific characters. Default false. */ return apply_filters( 'sanitize_user', $username, $raw_username, $strict ); } /** * Sanitizes a string key. * * Keys are used as internal identifiers. Lowercase alphanumeric characters, dashes and underscores are allowed. * * @since 3.0.0 * * @param string $key String key * @return string Sanitized key */ function sanitize_key( $key ) { $raw_key = $key; $key = strtolower( $key ); $key = preg_replace( '/[^a-z0-9_\-]/', '', $key ); /** * Filters a sanitized key string. * * @since 3.0.0 * * @param string $key Sanitized key. * @param string $raw_key The key prior to sanitization. */ return apply_filters( 'sanitize_key', $key, $raw_key ); } /** * Sanitizes a title, or returns a fallback title. * * Specifically, HTML and PHP tags are stripped. Further actions can be added * via the plugin API. If $title is empty and $fallback_title is set, the latter * will be used. * * @since 1.0.0 * * @param string $title The string to be sanitized. * @param string $fallback_title Optional. A title to use if $title is empty. * @param string $context Optional. The operation for which the string is sanitized * @return string The sanitized string. */ function sanitize_title( $title, $fallback_title = '', $context = 'save' ) { $raw_title = $title; if ( 'save' == $context ) $title = remove_accents($title); /** * Filters a sanitized title string. * * @since 1.2.0 * * @param string $title Sanitized title. * @param string $raw_title The title prior to sanitization. * @param string $context The context for which the title is being sanitized. */ $title = apply_filters( 'sanitize_title', $title, $raw_title, $context ); if ( '' === $title || false === $title ) $title = $fallback_title; return $title; } /** * Sanitizes a title with the 'query' context. * * Used for querying the database for a value from URL. * * @since 3.1.0 * * @param string $title The string to be sanitized. * @return string The sanitized string. */ function sanitize_title_for_query( $title ) { return sanitize_title( $title, '', 'query' ); } /** * Sanitizes a title, replacing whitespace and a few other characters with dashes. * * Limits the output to alphanumeric characters, underscore (_) and dash (-). * Whitespace becomes a dash. * * @since 1.2.0 * * @param string $title The title to be sanitized. * @param string $raw_title Optional. Not used. * @param string $context Optional. The operation for which the string is sanitized. * @return string The sanitized title. */ function sanitize_title_with_dashes( $title, $raw_title = '', $context = 'display' ) { $title = strip_tags($title); // Preserve escaped octets. $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title); // Remove percent signs that are not part of an octet. $title = str_replace('%', '', $title); // Restore octets. $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title); if (seems_utf8($title)) { if (function_exists('mb_strtolower')) { $title = mb_strtolower($title, 'UTF-8'); } $title = utf8_uri_encode( $title, 200 ); } $title = strtolower($title); if ( 'save' == $context ) { // Convert nbsp, ndash and mdash to hyphens $title = str_replace( array( '%c2%a0', '%e2%80%93', '%e2%80%94' ), '-', $title ); // Convert nbsp, ndash and mdash HTML entities to hyphens $title = str_replace( array( ' ', ' ', '–', '–', '—', '—' ), '-', $title ); // Strip these characters entirely $title = str_replace( array( // iexcl and iquest '%c2%a1', '%c2%bf', // angle quotes '%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba', // curly quotes '%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d', '%e2%80%9a', '%e2%80%9b', '%e2%80%9e', '%e2%80%9f', // copy, reg, deg, hellip and trade '%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2', // acute accents '%c2%b4', '%cb%8a', '%cc%81', '%cd%81', // grave accent, macron, caron '%cc%80', '%cc%84', '%cc%8c', ), '', $title ); // Convert times to x $title = str_replace( '%c3%97', 'x', $title ); } $title = preg_replace('/&.+?;/', '', $title); // kill entities $title = str_replace('.', '-', $title); $title = preg_replace('/[^%a-z0-9 _-]/', '', $title); $title = preg_replace('/\s+/', '-', $title); $title = preg_replace('|-+|', '-', $title); $title = trim($title, '-'); return $title; } /** * Ensures a string is a valid SQL 'order by' clause. * * Accepts one or more columns, with or without a sort order (ASC / DESC). * e.g. 'column_1', 'column_1, column_2', 'column_1 ASC, column_2 DESC' etc. * * Also accepts 'RAND()'. * * @since 2.5.1 * * @param string $orderby Order by clause to be validated. * @return string|false Returns $orderby if valid, false otherwise. */ function sanitize_sql_orderby( $orderby ) { if ( preg_match( '/^\s*(([a-z0-9_]+|`[a-z0-9_]+`)(\s+(ASC|DESC))?\s*(,\s*(?=[a-z0-9_`])|$))+$/i', $orderby ) || preg_match( '/^\s*RAND\(\s*\)\s*$/i', $orderby ) ) { return $orderby; } return false; } /** * Sanitizes an HTML classname to ensure it only contains valid characters. * * Strips the string down to A-Z,a-z,0-9,_,-. If this results in an empty * string then it will return the alternative value supplied. * * @todo Expand to support the full range of CDATA that a class attribute can contain. * * @since 2.8.0 * * @param string $class The classname to be sanitized * @param string $fallback Optional. The value to return if the sanitization ends up as an empty string. * Defaults to an empty string. * @return string The sanitized value */ function sanitize_html_class( $class, $fallback = '' ) { //Strip out any % encoded octets $sanitized = preg_replace( '|%[a-fA-F0-9][a-fA-F0-9]|', '', $class ); //Limit to A-Z,a-z,0-9,_,- $sanitized = preg_replace( '/[^A-Za-z0-9_-]/', '', $sanitized ); if ( '' == $sanitized && $fallback ) { return sanitize_html_class( $fallback ); } /** * Filters a sanitized HTML class string. * * @since 2.8.0 * * @param string $sanitized The sanitized HTML class. * @param string $class HTML class before sanitization. * @param string $fallback The fallback string. */ return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback ); } /** * Converts lone & characters into `&` (a.k.a. `&`) * * @since 0.71 * * @param string $content String of characters to be converted. * @param string $deprecated Not used. * @return string Converted string. */ function convert_chars( $content, $deprecated = '' ) { if ( ! empty( $deprecated ) ) { _deprecated_argument( __FUNCTION__, '0.71' ); } if ( strpos( $content, '&' ) !== false ) { $content = preg_replace( '/&([^#])(?![a-z1-4]{1,8};)/i', '&$1', $content ); } return $content; } /** * Converts invalid Unicode references range to valid range. * * @since 4.3.0 * * @param string $content String with entities that need converting. * @return string Converted string. */ function convert_invalid_entities( $content ) { $wp_htmltranswinuni = array( '€' => '€', // the Euro sign '' => '', '‚' => '‚', // these are Windows CP1252 specific characters 'ƒ' => 'ƒ', // they would look weird on non-Windows browsers '„' => '„', '…' => '…', '†' => '†', '‡' => '‡', 'ˆ' => 'ˆ', '‰' => '‰', 'Š' => 'Š', '‹' => '‹', 'Œ' => 'Œ', '' => '', 'Ž' => 'Ž', '' => '', '' => '', '‘' => '‘', '’' => '’', '“' => '“', '”' => '”', '•' => '•', '–' => '–', '—' => '—', '˜' => '˜', '™' => '™', 'š' => 'š', '›' => '›', 'œ' => 'œ', '' => '', 'ž' => 'ž', 'Ÿ' => 'Ÿ' ); if ( strpos( $content, '' ) !== false ) { $content = strtr( $content, $wp_htmltranswinuni ); } return $content; } /** * Balances tags if forced to, or if the 'use_balanceTags' option is set to true. * * @since 0.71 * * @param string $text Text to be balanced * @param bool $force If true, forces balancing, ignoring the value of the option. Default false. * @return string Balanced text */ function balanceTags( $text, $force = false ) { if ( $force || get_option('use_balanceTags') == 1 ) { return force_balance_tags( $text ); } else { return $text; } } /** * Balances tags of string using a modified stack. * * @since 2.0.4 * * @author Leonard Lin <leonard@acm.org> * @license GPL * @copyright November 4, 2001 * @version 1.1 * @todo Make better - change loop condition to $text in 1.2 * @internal Modified by Scott Reilly (coffee2code) 02 Aug 2004 * 1.1 Fixed handling of append/stack pop order of end text * Added Cleaning Hooks * 1.0 First Version * * @param string $text Text to be balanced. * @return string Balanced text. */ function force_balance_tags( $text ) { $tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = ''; // Known single-entity/self-closing tags $single_tags = array( 'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param', 'source' ); // Tags that can be immediately nested within themselves $nestable_tags = array( 'blockquote', 'div', 'object', 'q', 'span' ); // WP bug fix for comments - in case you REALLY meant to type '< !--' $text = str_replace('< !--', '< !--', $text); // WP bug fix for LOVE <3 (and other situations with '<' before a number) $text = preg_replace('#<([0-9]{1})#', '<$1', $text); while ( preg_match("/<(\/?[\w:]*)\s*([^>]*)>/", $text, $regex) ) { $newtext .= $tagqueue; $i = strpos($text, $regex[0]); $l = strlen($regex[0]); // clear the shifter $tagqueue = ''; // Pop or Push if ( isset($regex[1][0]) && '/' == $regex[1][0] ) { // End Tag $tag = strtolower(substr($regex[1],1)); // if too many closing tags if ( $stacksize <= 0 ) { $tag = ''; // or close to be safe $tag = '/' . $tag; } // if stacktop value = tag close value then pop elseif ( $tagstack[$stacksize - 1] == $tag ) { // found closing tag $tag = '</' . $tag . '>'; // Close Tag // Pop array_pop( $tagstack ); $stacksize--; } else { // closing tag not at top, search for it for ( $j = $stacksize-1; $j >= 0; $j-- ) { if ( $tagstack[$j] == $tag ) { // add tag to tagqueue for ( $k = $stacksize-1; $k >= $j; $k--) { $tagqueue .= '</' . array_pop( $tagstack ) . '>'; $stacksize--; } break; } } $tag = ''; } } else { // Begin Tag $tag = strtolower($regex[1]); // Tag Cleaning // If it's an empty tag "< >", do nothing if ( '' == $tag ) { // do nothing } // ElseIf it presents itself as a self-closing tag... elseif ( substr( $regex[2], -1 ) == '/' ) { // ...but it isn't a known single-entity self-closing tag, then don't let it be treated as such and // immediately close it with a closing tag (the tag will encapsulate no text as a result) if ( ! in_array( $tag, $single_tags ) ) $regex[2] = trim( substr( $regex[2], 0, -1 ) ) . "></$tag"; } // ElseIf it's a known single-entity tag but it doesn't close itself, do so elseif ( in_array($tag, $single_tags) ) { $regex[2] .= '/'; } // Else it's not a single-entity tag else { // If the top of the stack is the same as the tag we want to push, close previous tag if ( $stacksize > 0 && !in_array($tag, $nestable_tags) && $tagstack[$stacksize - 1] == $tag ) { $tagqueue = '</' . array_pop( $tagstack ) . '>'; $stacksize--; } $stacksize = array_push( $tagstack, $tag ); } // Attributes $attributes = $regex[2]; if ( ! empty( $attributes ) && $attributes[0] != '>' ) $attributes = ' ' . $attributes; $tag = '<' . $tag . $attributes . '>'; //If already queuing a close tag, then put this tag on, too if ( !empty($tagqueue) ) { $tagqueue .= $tag; $tag = ''; } } $newtext .= substr($text, 0, $i) . $tag; $text = substr($text, $i + $l); } // Clear Tag Queue $newtext .= $tagqueue; // Add Remaining text $newtext .= $text; // Empty Stack while( $x = array_pop($tagstack) ) $newtext .= '</' . $x . '>'; // Add remaining tags to close // WP fix for the bug with HTML comments $newtext = str_replace("< !--","<!--",$newtext); $newtext = str_replace("< !--","< !--",$newtext); return $newtext; } /** * Acts on text which is about to be edited. * * The $content is run through esc_textarea(), which uses htmlspecialchars() * to convert special characters to HTML entities. If `$richedit` is set to true, * it is simply a holder for the {@see 'format_to_edit'} filter. * * @since 0.71 * @since 4.4.0 The `$richedit` parameter was renamed to `$rich_text` for clarity. * * @param string $content The text about to be edited. * @param bool $rich_text Optional. Whether `$content` should be considered rich text, * in which case it would not be passed through esc_textarea(). * Default false. * @return string The text after the filter (and possibly htmlspecialchars()) has been run. */ function format_to_edit( $content, $rich_text = false ) { /** * Filters the text to be formatted for editing. * * @since 1.2.0 * * @param string $content The text, prior to formatting for editing. */ $content = apply_filters( 'format_to_edit', $content ); if ( ! $rich_text ) $content = esc_textarea( $content ); return $content; } /** * Add leading zeros when necessary. * * If you set the threshold to '4' and the number is '10', then you will get * back '0010'. If you set the threshold to '4' and the number is '5000', then you * will get back '5000'. * * Uses sprintf to append the amount of zeros based on the $threshold parameter * and the size of the number. If the number is large enough, then no zeros will * be appended. * * @since 0.71 * * @param int $number Number to append zeros to if not greater than threshold. * @param int $threshold Digit places number needs to be to not have zeros added. * @return string Adds leading zeros to number if needed. */ function zeroise( $number, $threshold ) { return sprintf( '%0' . $threshold . 's', $number ); } /** * Adds backslashes before letters and before a number at the start of a string. * * @since 0.71 * * @param string $string Value to which backslashes will be added. * @return string String with backslashes inserted. */ function backslashit( $string ) { if ( isset( $string[0] ) && $string[0] >= '0' && $string[0] <= '9' ) $string = '\\\\' . $string; return addcslashes( $string, 'A..Za..z' ); } /** * Appends a trailing slash. * * Will remove trailing forward and backslashes if it exists already before adding * a trailing forward slash. This prevents double slashing a string or path. * * The primary use of this is for paths and thus should be used for paths. It is * not restricted to paths and offers no specific path support. * * @since 1.2.0 * * @param string $string What to add the trailing slash to. * @return string String with trailing slash added. */ function trailingslashit( $string ) { return untrailingslashit( $string ) . '/'; } /** * Removes trailing forward slashes and backslashes if they exist. * * The primary use of this is for paths and thus should be used for paths. It is * not restricted to paths and offers no specific path support. * * @since 2.2.0 * * @param string $string What to remove the trailing slashes from. * @return string String without the trailing slashes. */ function untrailingslashit( $string ) { return rtrim( $string, '/\\' ); } /** * Adds slashes to escape strings. * * Slashes will first be removed if magic_quotes_gpc is set, see {@link * https://secure.php.net/magic_quotes} for more details. * * @since 0.71 * * @param string $gpc The string returned from HTTP request data. * @return string Returns a string escaped with slashes. */ function addslashes_gpc($gpc) { if ( get_magic_quotes_gpc() ) $gpc = stripslashes($gpc); return wp_slash($gpc); } /** * Navigates through an array, object, or scalar, and removes slashes from the values. * * @since 2.0.0 * * @param mixed $value The value to be stripped. * @return mixed Stripped value. */ function stripslashes_deep( $value ) { return map_deep( $value, 'stripslashes_from_strings_only' ); } /** * Callback function for `stripslashes_deep()` which strips slashes from strings. * * @since 4.4.0 * * @param mixed $value The array or string to be stripped. * @return mixed $value The stripped value. */ function stripslashes_from_strings_only( $value ) { return is_string( $value ) ? stripslashes( $value ) : $value; } /** * Navigates through an array, object, or scalar, and encodes the values to be used in a URL. * * @since 2.2.0 * * @param mixed $value The array or string to be encoded. * @return mixed $value The encoded value. */ function urlencode_deep( $value ) { return map_deep( $value, 'urlencode' ); } /** * Navigates through an array, object, or scalar, and raw-encodes the values to be used in a URL. * * @since 3.4.0 * * @param mixed $value The array or string to be encoded. * @return mixed $value The encoded value. */ function rawurlencode_deep( $value ) { return map_deep( $value, 'rawurlencode' ); } /** * Navigates through an array, object, or scalar, and decodes URL-encoded values * * @since 4.4.0 * * @param mixed $value The array or string to be decoded. * @return mixed $value The decoded value. */ function urldecode_deep( $value ) { return map_deep( $value, 'urldecode' ); } /** * Converts email addresses characters to HTML entities to block spam bots. * * @since 0.71 * * @param string $email_address Email address. * @param int $hex_encoding Optional. Set to 1 to enable hex encoding. * @return string Converted email address. */ function antispambot( $email_address, $hex_encoding = 0 ) { $email_no_spam_address = ''; for ( $i = 0, $len = strlen( $email_address ); $i < $len; $i++ ) { $j = rand( 0, 1 + $hex_encoding ); if ( $j == 0 ) { $email_no_spam_address .= '&#' . ord( $email_address[$i] ) . ';'; } elseif ( $j == 1 ) { $email_no_spam_address .= $email_address[$i]; } elseif ( $j == 2 ) { $email_no_spam_address .= '%' . zeroise( dechex( ord( $email_address[$i] ) ), 2 ); } } return str_replace( '@', '@', $email_no_spam_address ); } /** * Callback to convert URI match to HTML A element. * * This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable(). * * @since 2.3.2 * @access private * * @param array $matches Single Regex Match. * @return string HTML A element with URI address. */ function _make_url_clickable_cb( $matches ) { $url = $matches[2]; if ( ')' == $matches[3] && strpos( $url, '(' ) ) { // If the trailing character is a closing parethesis, and the URL has an opening parenthesis in it, add the closing parenthesis to the URL. // Then we can let the parenthesis balancer do its thing below. $url .= $matches[3]; $suffix = ''; } else { $suffix = $matches[3]; } // Include parentheses in the URL only if paired while ( substr_count( $url, '(' ) < substr_count( $url, ')' ) ) { $suffix = strrchr( $url, ')' ) . $suffix; $url = substr( $url, 0, strrpos( $url, ')' ) ); } $url = esc_url($url); if ( empty($url) ) return $matches[0]; return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>" . $suffix; } /** * Callback to convert URL match to HTML A element. * * This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable(). * * @since 2.3.2 * @access private * * @param array $matches Single Regex Match. * @return string HTML A element with URL address. */ function _make_web_ftp_clickable_cb( $matches ) { $ret = ''; $dest = $matches[2]; $dest = 'http://' . $dest; // removed trailing [.,;:)] from URL if ( in_array( substr($dest, -1), array('.', ',', ';', ':', ')') ) === true ) { $ret = substr($dest, -1); $dest = substr($dest, 0, strlen($dest)-1); } $dest = esc_url($dest); if ( empty($dest) ) return $matches[0]; return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>$ret"; } /** * Callback to convert email address match to HTML A element. * * This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable(). * * @since 2.3.2 * @access private * * @param array $matches Single Regex Match. * @return string HTML A element with email address. */ function _make_email_clickable_cb( $matches ) { $email = $matches[2] . '@' . $matches[3]; return $matches[1] . "<a href=\"mailto:$email\">$email</a>"; } /** * Convert plaintext URI to HTML links. * * Converts URI, www and ftp, and email addresses. Finishes by fixing links * within links. * * @since 0.71 * * @param string $text Content to convert URIs. * @return string Content with converted URIs. */ function make_clickable( $text ) { $r = ''; $textarr = preg_split( '/(<[^<>]+>)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // split out HTML tags $nested_code_pre = 0; // Keep track of how many levels link is nested inside <pre> or <code> foreach ( $textarr as $piece ) { if ( preg_match( '|^<code[\s>]|i', $piece ) || preg_match( '|^<pre[\s>]|i', $piece ) || preg_match( '|^<script[\s>]|i', $piece ) || preg_match( '|^<style[\s>]|i', $piece ) ) $nested_code_pre++; elseif ( $nested_code_pre && ( '</code>' === strtolower( $piece ) || '</pre>' === strtolower( $piece ) || '</script>' === strtolower( $piece ) || '</style>' === strtolower( $piece ) ) ) $nested_code_pre--; if ( $nested_code_pre || empty( $piece ) || ( $piece[0] === '<' && ! preg_match( '|^<\s*[\w]{1,20}+://|', $piece ) ) ) { $r .= $piece; continue; } // Long strings might contain expensive edge cases ... if ( 10000 < strlen( $piece ) ) { // ... break it up foreach ( _split_str_by_whitespace( $piece, 2100 ) as $chunk ) { // 2100: Extra room for scheme and leading and trailing paretheses if ( 2101 < strlen( $chunk ) ) { $r .= $chunk; // Too big, no whitespace: bail. } else { $r .= make_clickable( $chunk ); } } } else { $ret = " $piece "; // Pad with whitespace to simplify the regexes $url_clickable = '~ ([\\s(<.,;:!?]) # 1: Leading whitespace, or punctuation ( # 2: URL [\\w]{1,20}+:// # Scheme and hier-part prefix (?=\S{1,2000}\s) # Limit to URLs less than about 2000 characters long [\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]*+ # Non-punctuation URL character (?: # Unroll the Loop: Only allow puctuation URL character if followed by a non-punctuation URL character [\'.,;:!?)] # Punctuation URL character [\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]++ # Non-punctuation URL character )* ) (\)?) # 3: Trailing closing parenthesis (for parethesis balancing post processing) ~xS'; // The regex is a non-anchored pattern and does not have a single fixed starting character. // Tell PCRE to spend more time optimizing since, when used on a page load, it will probably be used several times. $ret = preg_replace_callback( $url_clickable, '_make_url_clickable_cb', $ret ); $ret = preg_replace_callback( '#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]+)#is', '_make_web_ftp_clickable_cb', $ret ); $ret = preg_replace_callback( '#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret ); $ret = substr( $ret, 1, -1 ); // Remove our whitespace padding. $r .= $ret; } } // Cleanup of accidental links within links return preg_replace( '#(<a([ \r\n\t]+[^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r ); } /** * Breaks a string into chunks by splitting at whitespace characters. * The length of each returned chunk is as close to the specified length goal as possible, * with the caveat that each chunk includes its trailing delimiter. * Chunks longer than the goal are guaranteed to not have any inner whitespace. * * Joining the returned chunks with empty delimiters reconstructs the input string losslessly. * * Input string must have no null characters (or eventual transformations on output chunks must not care about null characters) * * _split_str_by_whitespace( "1234 67890 1234 67890a cd 1234 890 123456789 1234567890a 45678 1 3 5 7 90 ", 10 ) == * array ( * 0 => '1234 67890 ', // 11 characters: Perfect split * 1 => '1234 ', // 5 characters: '1234 67890a' was too long * 2 => '67890a cd ', // 10 characters: '67890a cd 1234' was too long * 3 => '1234 890 ', // 11 characters: Perfect split * 4 => '123456789 ', // 10 characters: '123456789 1234567890a' was too long * 5 => '1234567890a ', // 12 characters: Too long, but no inner whitespace on which to split * 6 => ' 45678 ', // 11 characters: Perfect split * 7 => '1 3 5 7 90 ', // 11 characters: End of $string * ); * * @since 3.4.0 * @access private * * @param string $string The string to split. * @param int $goal The desired chunk length. * @return array Numeric array of chunks. */ function _split_str_by_whitespace( $string, $goal ) { $chunks = array(); $string_nullspace = strtr( $string, "\r\n\t\v\f ", "\000\000\000\000\000\000" ); while ( $goal < strlen( $string_nullspace ) ) { $pos = strrpos( substr( $string_nullspace, 0, $goal + 1 ), "\000" ); if ( false === $pos ) { $pos = strpos( $string_nullspace, "\000", $goal + 1 ); if ( false === $pos ) { break; } } $chunks[] = substr( $string, 0, $pos + 1 ); $string = substr( $string, $pos + 1 ); $string_nullspace = substr( $string_nullspace, $pos + 1 ); } if ( $string ) { $chunks[] = $string; } return $chunks; } /** * Adds rel nofollow string to all HTML A elements in content. * * @since 1.5.0 * * @param string $text Content that may contain HTML A elements. * @return string Converted content. */ function wp_rel_nofollow( $text ) { // This is a pre save filter, so text is already escaped. $text = stripslashes($text); $text = preg_replace_callback('|<a (.+?)>|i', 'wp_rel_nofollow_callback', $text); return wp_slash( $text ); } /** * Callback to add rel=nofollow string to HTML A element. * * Will remove already existing rel="nofollow" and rel='nofollow' from the * string to prevent from invalidating (X)HTML. * * @since 2.3.0 * * @param array $matches Single Match * @return string HTML A Element with rel nofollow. */ function wp_rel_nofollow_callback( $matches ) { $text = $matches[1]; $atts = wp_kses_hair( $matches[1], wp_allowed_protocols() ); $rel = 'nofollow'; if ( ! empty( $atts['href'] ) ) { $href_parts = wp_parse_url( $atts['href']['value'] ); $href_scheme = isset( $href_parts['scheme'] ) ? $href_parts['scheme'] : ''; $href_host = isset( $href_parts['host'] ) ? $href_parts['host'] : ''; $home_parts = wp_parse_url( home_url() ); $home_host = isset( $home_parts['host'] ) ? $home_parts['host'] : ''; if ( in_array( strtolower( $href_scheme ), array( 'http', 'https' ), true ) ) { if ( strtolower( $href_host ) === strtolower( $home_host ) ) { return "<a $text>"; } } } if ( ! empty( $atts['rel'] ) ) { $parts = array_map( 'trim', explode( ' ', $atts['rel']['value'] ) ); if ( false === array_search( 'nofollow', $parts ) ) { $parts[] = 'nofollow'; } $rel = implode( ' ', $parts ); unset( $atts['rel'] ); $html = ''; foreach ( $atts as $name => $value ) { if ( isset( $value['vless'] ) && 'y' === $value['vless'] ) { $html .= $name . ' '; } else { $html .= "{$name}=\"" . esc_attr( $value['value'] ) . '" '; } } $text = trim( $html ); } return "<a $text rel=\"" . esc_attr( $rel ) . "\">"; } /** * Convert one smiley code to the icon graphic file equivalent. * * Callback handler for convert_smilies(). * * Looks up one smiley code in the $wpsmiliestrans global array and returns an * `<img>` string for that smiley. * * @since 2.8.0 * * @global array $wpsmiliestrans * * @param array $matches Single match. Smiley code to convert to image. * @return string Image string for smiley. */ function translate_smiley( $matches ) { global $wpsmiliestrans; if ( count( $matches ) == 0 ) return ''; $smiley = trim( reset( $matches ) ); $img = $wpsmiliestrans[ $smiley ]; $matches = array(); $ext = preg_match( '/\.([^.]+)$/', $img, $matches ) ? strtolower( $matches[1] ) : false; $image_exts = array( 'jpg', 'jpeg', 'jpe', 'gif', 'png' ); // Don't convert smilies that aren't images - they're probably emoji. if ( ! in_array( $ext, $image_exts ) ) { return $img; } /** * Filters the Smiley image URL before it's used in the image element. * * @since 2.9.0 * * @param string $smiley_url URL for the smiley image. * @param string $img Filename for the smiley image. * @param string $site_url Site URL, as returned by site_url(). */ $src_url = apply_filters( 'smilies_src', includes_url( "images/smilies/$img" ), $img, site_url() ); return sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', esc_url( $src_url ), esc_attr( $smiley ) ); } /** * Convert text equivalent of smilies to images. * * Will only convert smilies if the option 'use_smilies' is true and the global * used in the function isn't empty. * * @since 0.71 * * @global string|array $wp_smiliessearch * * @param string $text Content to convert smilies from text. * @return string Converted content with text smilies replaced with images. */ function convert_smilies( $text ) { global $wp_smiliessearch; $output = ''; if ( get_option( 'use_smilies' ) && ! empty( $wp_smiliessearch ) ) { // HTML loop taken from texturize function, could possible be consolidated $textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // capture the tags as well as in between $stop = count( $textarr );// loop stuff // Ignore proessing of specific tags $tags_to_ignore = 'code|pre|style|script|textarea'; $ignore_block_element = ''; for ( $i = 0; $i < $stop; $i++ ) { $content = $textarr[$i]; // If we're in an ignore block, wait until we find its closing tag if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')>/', $content, $matches ) ) { $ignore_block_element = $matches[1]; } // If it's not a tag and not in ignore block if ( '' == $ignore_block_element && strlen( $content ) > 0 && '<' != $content[0] ) { $content = preg_replace_callback( $wp_smiliessearch, 'translate_smiley', $content ); } // did we exit ignore block if ( '' != $ignore_block_element && '</' . $ignore_block_element . '>' == $content ) { $ignore_block_element = ''; } $output .= $content; } } else { // return default text. $output = $text; } return $output; } /** * Verifies that an email is valid. * * Does not grok i18n domains. Not RFC compliant. * * @since 0.71 * * @param string $email Email address to verify. * @param bool $deprecated Deprecated. * @return string|bool Either false or the valid email address. */ function is_email( $email, $deprecated = false ) { if ( ! empty( $deprecated ) ) _deprecated_argument( __FUNCTION__, '3.0.0' ); // Test for the minimum length the email can be if ( strlen( $email ) < 3 ) { /** * Filters whether an email address is valid. * * This filter is evaluated under several different contexts, such as 'email_too_short', * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits', * 'domain_no_periods', 'sub_hyphen_limits', 'sub_invalid_chars', or no specific context. * * @since 2.8.0 * * @param bool $is_email Whether the email address has passed the is_email() checks. Default false. * @param string $email The email address being checked. * @param string $context Context under which the email was tested. */ return apply_filters( 'is_email', false, $email, 'email_too_short' ); } // Test for an @ character after the first position if ( strpos( $email, '@', 1 ) === false ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'email_no_at' ); } // Split out the local and domain parts list( $local, $domain ) = explode( '@', $email, 2 ); // LOCAL PART // Test for invalid characters if ( !preg_match( '/^[a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]+$/', $local ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'local_invalid_chars' ); } // DOMAIN PART // Test for sequences of periods if ( preg_match( '/\.{2,}/', $domain ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'domain_period_sequence' ); } // Test for leading and trailing periods and whitespace if ( trim( $domain, " \t\n\r\0\x0B." ) !== $domain ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'domain_period_limits' ); } // Split the domain into subs $subs = explode( '.', $domain ); // Assume the domain will have at least two subs if ( 2 > count( $subs ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'domain_no_periods' ); } // Loop through each sub foreach ( $subs as $sub ) { // Test for leading and trailing hyphens and whitespace if ( trim( $sub, " \t\n\r\0\x0B-" ) !== $sub ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'sub_hyphen_limits' ); } // Test for invalid characters if ( !preg_match('/^[a-z0-9-]+$/i', $sub ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'sub_invalid_chars' ); } } // Congratulations your email made it! /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', $email, $email, null ); } /** * Convert to ASCII from email subjects. * * @since 1.2.0 * * @param string $string Subject line * @return string Converted string to ASCII */ function wp_iso_descrambler( $string ) { /* this may only work with iso-8859-1, I'm afraid */ if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) { return $string; } else { $subject = str_replace('_', ' ', $matches[2]); return preg_replace_callback( '#\=([0-9a-f]{2})#i', '_wp_iso_convert', $subject ); } } /** * Helper function to convert hex encoded chars to ASCII * * @since 3.1.0 * @access private * * @param array $match The preg_replace_callback matches array * @return string Converted chars */ function _wp_iso_convert( $match ) { return chr( hexdec( strtolower( $match[1] ) ) ); } /** * Returns a date in the GMT equivalent. * * Requires and returns a date in the Y-m-d H:i:s format. If there is a * timezone_string available, the date is assumed to be in that timezone, * otherwise it simply subtracts the value of the 'gmt_offset' option. Return * format can be overridden using the $format parameter. * * @since 1.2.0 * * @param string $string The date to be converted. * @param string $format The format string for the returned date (default is Y-m-d H:i:s) * @return string GMT version of the date provided. */ function get_gmt_from_date( $string, $format = 'Y-m-d H:i:s' ) { $tz = get_option( 'timezone_string' ); if ( $tz ) { $datetime = date_create( $string, new DateTimeZone( $tz ) ); if ( ! $datetime ) { return gmdate( $format, 0 ); } $datetime->setTimezone( new DateTimeZone( 'UTC' ) ); $string_gmt = $datetime->format( $format ); } else { if ( ! preg_match( '#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches ) ) { $datetime = strtotime( $string ); if ( false === $datetime ) { return gmdate( $format, 0 ); } return gmdate( $format, $datetime ); } $string_time = gmmktime( $matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1] ); $string_gmt = gmdate( $format, $string_time - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ); } return $string_gmt; } /** * Converts a GMT date into the correct format for the blog. * * Requires and returns a date in the Y-m-d H:i:s format. If there is a * timezone_string available, the returned date is in that timezone, otherwise * it simply adds the value of gmt_offset. Return format can be overridden * using the $format parameter * * @since 1.2.0 * * @param string $string The date to be converted. * @param string $format The format string for the returned date (default is Y-m-d H:i:s) * @return string Formatted date relative to the timezone / GMT offset. */ function get_date_from_gmt( $string, $format = 'Y-m-d H:i:s' ) { $tz = get_option( 'timezone_string' ); if ( $tz ) { $datetime = date_create( $string, new DateTimeZone( 'UTC' ) ); if ( ! $datetime ) return date( $format, 0 ); $datetime->setTimezone( new DateTimeZone( $tz ) ); $string_localtime = $datetime->format( $format ); } else { if ( ! preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches) ) return date( $format, 0 ); $string_time = gmmktime( $matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1] ); $string_localtime = gmdate( $format, $string_time + get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ); } return $string_localtime; } /** * Computes an offset in seconds from an iso8601 timezone. * * @since 1.5.0 * * @param string $timezone Either 'Z' for 0 offset or '±hhmm'. * @return int|float The offset in seconds. */ function iso8601_timezone_to_offset( $timezone ) { // $timezone is either 'Z' or '[+|-]hhmm' if ($timezone == 'Z') { $offset = 0; } else { $sign = (substr($timezone, 0, 1) == '+') ? 1 : -1; $hours = intval(substr($timezone, 1, 2)); $minutes = intval(substr($timezone, 3, 4)) / 60; $offset = $sign * HOUR_IN_SECONDS * ($hours + $minutes); } return $offset; } /** * Converts an iso8601 date to MySQL DateTime format used by post_date[_gmt]. * * @since 1.5.0 * * @param string $date_string Date and time in ISO 8601 format {@link https://en.wikipedia.org/wiki/ISO_8601}. * @param string $timezone Optional. If set to GMT returns the time minus gmt_offset. Default is 'user'. * @return string The date and time in MySQL DateTime format - Y-m-d H:i:s. */ function iso8601_to_datetime( $date_string, $timezone = 'user' ) { $timezone = strtolower($timezone); if ($timezone == 'gmt') { preg_match('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', $date_string, $date_bits); if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset $offset = iso8601_timezone_to_offset($date_bits[7]); } else { // we don't have a timezone, so we assume user local timezone (not server's!) $offset = HOUR_IN_SECONDS * get_option('gmt_offset'); } $timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]); $timestamp -= $offset; return gmdate('Y-m-d H:i:s', $timestamp); } elseif ($timezone == 'user') { return preg_replace('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', '$1-$2-$3 $4:$5:$6', $date_string); } } /** * Strips out all characters that are not allowable in an email. * * @since 1.5.0 * * @param string $email Email address to filter. * @return string Filtered email address. */ function sanitize_email( $email ) { // Test for the minimum length the email can be if ( strlen( $email ) < 3 ) { /** * Filters a sanitized email address. * * This filter is evaluated under several contexts, including 'email_too_short', * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits', * 'domain_no_periods', 'domain_no_valid_subs', or no context. * * @since 2.8.0 * * @param string $email The sanitized email address. * @param string $email The email address, as provided to sanitize_email(). * @param string $message A message to pass to the user. */ return apply_filters( 'sanitize_email', '', $email, 'email_too_short' ); } // Test for an @ character after the first position if ( strpos( $email, '@', 1 ) === false ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'email_no_at' ); } // Split out the local and domain parts list( $local, $domain ) = explode( '@', $email, 2 ); // LOCAL PART // Test for invalid characters $local = preg_replace( '/[^a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]/', '', $local ); if ( '' === $local ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'local_invalid_chars' ); } // DOMAIN PART // Test for sequences of periods $domain = preg_replace( '/\.{2,}/', '', $domain ); if ( '' === $domain ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'domain_period_sequence' ); } // Test for leading and trailing periods and whitespace $domain = trim( $domain, " \t\n\r\0\x0B." ); if ( '' === $domain ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'domain_period_limits' ); } // Split the domain into subs $subs = explode( '.', $domain ); // Assume the domain will have at least two subs if ( 2 > count( $subs ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'domain_no_periods' ); } // Create an array that will contain valid subs $new_subs = array(); // Loop through each sub foreach ( $subs as $sub ) { // Test for leading and trailing hyphens $sub = trim( $sub, " \t\n\r\0\x0B-" ); // Test for invalid characters $sub = preg_replace( '/[^a-z0-9-]+/i', '', $sub ); // If there's anything left, add it to the valid subs if ( '' !== $sub ) { $new_subs[] = $sub; } } // If there aren't 2 or more valid subs if ( 2 > count( $new_subs ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'domain_no_valid_subs' ); } // Join valid subs into the new domain $domain = join( '.', $new_subs ); // Put the email back together $email = $local . '@' . $domain; // Congratulations your email made it! /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', $email, $email, null ); } /** * Determines the difference between two timestamps. * * The difference is returned in a human readable format such as "1 hour", * "5 mins", "2 days". * * @since 1.5.0 * * @param int $from Unix timestamp from which the difference begins. * @param int $to Optional. Unix timestamp to end the time difference. Default becomes time() if not set. * @return string Human readable time difference. */ function human_time_diff( $from, $to = '' ) { if ( empty( $to ) ) { $to = time(); } $diff = (int) abs( $to - $from ); if ( $diff < HOUR_IN_SECONDS ) { $mins = round( $diff / MINUTE_IN_SECONDS ); if ( $mins <= 1 ) $mins = 1; /* translators: min=minute */ $since = sprintf( _n( '%s min', '%s mins', $mins ), $mins ); } elseif ( $diff < DAY_IN_SECONDS && $diff >= HOUR_IN_SECONDS ) { $hours = round( $diff / HOUR_IN_SECONDS ); if ( $hours <= 1 ) $hours = 1; $since = sprintf( _n( '%s hour', '%s hours', $hours ), $hours ); } elseif ( $diff < WEEK_IN_SECONDS && $diff >= DAY_IN_SECONDS ) { $days = round( $diff / DAY_IN_SECONDS ); if ( $days <= 1 ) $days = 1; $since = sprintf( _n( '%s day', '%s days', $days ), $days ); } elseif ( $diff < MONTH_IN_SECONDS && $diff >= WEEK_IN_SECONDS ) { $weeks = round( $diff / WEEK_IN_SECONDS ); if ( $weeks <= 1 ) $weeks = 1; $since = sprintf( _n( '%s week', '%s weeks', $weeks ), $weeks ); } elseif ( $diff < YEAR_IN_SECONDS && $diff >= MONTH_IN_SECONDS ) { $months = round( $diff / MONTH_IN_SECONDS ); if ( $months <= 1 ) $months = 1; $since = sprintf( _n( '%s month', '%s months', $months ), $months ); } elseif ( $diff >= YEAR_IN_SECONDS ) { $years = round( $diff / YEAR_IN_SECONDS ); if ( $years <= 1 ) $years = 1; $since = sprintf( _n( '%s year', '%s years', $years ), $years ); } /** * Filters the human readable difference between two timestamps. * * @since 4.0.0 * * @param string $since The difference in human readable text. * @param int $diff The difference in seconds. * @param int $from Unix timestamp from which the difference begins. * @param int $to Unix timestamp to end the time difference. */ return apply_filters( 'human_time_diff', $since, $diff, $from, $to ); } /** * Generates an excerpt from the content, if needed. * * The excerpt word amount will be 55 words and if the amount is greater than * that, then the string ' […]' will be appended to the excerpt. If the string * is less than 55 words, then the content will be returned as is. * * The 55 word limit can be modified by plugins/themes using the {@see 'excerpt_length'} filter * The ' […]' string can be modified by plugins/themes using the {@see 'excerpt_more'} filter * * @since 1.5.0 * * @param string $text Optional. The excerpt. If set to empty, an excerpt is generated. * @return string The excerpt. */ function wp_trim_excerpt( $text = '' ) { $raw_excerpt = $text; if ( '' == $text ) { $text = get_the_content(''); $text = strip_shortcodes( $text ); /** This filter is documented in wp-includes/post-template.php */ $text = apply_filters( 'the_content', $text ); $text = str_replace(']]>', ']]>', $text); /** * Filters the number of words in an excerpt. * * @since 2.7.0 * * @param int $number The number of words. Default 55. */ $excerpt_length = apply_filters( 'excerpt_length', 55 ); /** * Filters the string in the "more" link displayed after a trimmed excerpt. * * @since 2.9.0 * * @param string $more_string The string shown within the more link. */ $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' ); $text = wp_trim_words( $text, $excerpt_length, $excerpt_more ); } /** * Filters the trimmed excerpt string. * * @since 2.8.0 * * @param string $text The trimmed text. * @param string $raw_excerpt The text prior to trimming. */ return apply_filters( 'wp_trim_excerpt', $text, $raw_excerpt ); } /** * Trims text to a certain number of words. * * This function is localized. For languages that count 'words' by the individual * character (such as East Asian languages), the $num_words argument will apply * to the number of individual characters. * * @since 3.3.0 * * @param string $text Text to trim. * @param int $num_words Number of words. Default 55. * @param string $more Optional. What to append if $text needs to be trimmed. Default '…'. * @return string Trimmed text. */ function wp_trim_words( $text, $num_words = 55, $more = null ) { if ( null === $more ) { $more = __( '…' ); } $original_text = $text; $text = wp_strip_all_tags( $text ); /* * translators: If your word count is based on single characters (e.g. East Asian characters), * enter 'characters_excluding_spaces' or 'characters_including_spaces'. Otherwise, enter 'words'. * Do not translate into your own language. */ if ( strpos( _x( 'words', 'Word count type. Do not translate!' ), 'characters' ) === 0 && preg_match( '/^utf\-?8$/i', get_option( 'blog_charset' ) ) ) { $text = trim( preg_replace( "/[\n\r\t ]+/", ' ', $text ), ' ' ); preg_match_all( '/./u', $text, $words_array ); $words_array = array_slice( $words_array[0], 0, $num_words + 1 ); $sep = ''; } else { $words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, PREG_SPLIT_NO_EMPTY ); $sep = ' '; } if ( count( $words_array ) > $num_words ) { array_pop( $words_array ); $text = implode( $sep, $words_array ); $text = $text . $more; } else { $text = implode( $sep, $words_array ); } /** * Filters the text content after words have been trimmed. * * @since 3.3.0 * * @param string $text The trimmed text. * @param int $num_words The number of words to trim the text to. Default 5. * @param string $more An optional string to append to the end of the trimmed text, e.g. …. * @param string $original_text The text before it was trimmed. */ return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text ); } /** * Converts named entities into numbered entities. * * @since 1.5.1 * * @param string $text The text within which entities will be converted. * @return string Text with converted entities. */ function ent2ncr( $text ) { /** * Filters text before named entities are converted into numbered entities. * * A non-null string must be returned for the filter to be evaluated. * * @since 3.3.0 * * @param null $converted_text The text to be converted. Default null. * @param string $text The text prior to entity conversion. */ $filtered = apply_filters( 'pre_ent2ncr', null, $text ); if ( null !== $filtered ) return $filtered; $to_ncr = array( '"' => '"', '&' => '&', '<' => '<', '>' => '>', '|' => '|', ' ' => ' ', '¡' => '¡', '¢' => '¢', '£' => '£', '¤' => '¤', '¥' => '¥', '¦' => '¦', '&brkbar;' => '¦', '§' => '§', '¨' => '¨', '¨' => '¨', '©' => '©', 'ª' => 'ª', '«' => '«', '¬' => '¬', '­' => '­', '®' => '®', '¯' => '¯', '&hibar;' => '¯', '°' => '°', '±' => '±', '²' => '²', '³' => '³', '´' => '´', 'µ' => 'µ', '¶' => '¶', '·' => '·', '¸' => '¸', '¹' => '¹', 'º' => 'º', '»' => '»', '¼' => '¼', '½' => '½', '¾' => '¾', '¿' => '¿', 'À' => 'À', 'Á' => 'Á', 'Â' => 'Â', 'Ã' => 'Ã', 'Ä' => 'Ä', 'Å' => 'Å', 'Æ' => 'Æ', 'Ç' => 'Ç', 'È' => 'È', 'É' => 'É', 'Ê' => 'Ê', 'Ë' => 'Ë', 'Ì' => 'Ì', 'Í' => 'Í', 'Î' => 'Î', 'Ï' => 'Ï', 'Ð' => 'Ð', 'Ñ' => 'Ñ', 'Ò' => 'Ò', 'Ó' => 'Ó', 'Ô' => 'Ô', 'Õ' => 'Õ', 'Ö' => 'Ö', '×' => '×', 'Ø' => 'Ø', 'Ù' => 'Ù', 'Ú' => 'Ú', 'Û' => 'Û', 'Ü' => 'Ü', 'Ý' => 'Ý', 'Þ' => 'Þ', 'ß' => 'ß', 'à' => 'à', 'á' => 'á', 'â' => 'â', 'ã' => 'ã', 'ä' => 'ä', 'å' => 'å', 'æ' => 'æ', 'ç' => 'ç', 'è' => 'è', 'é' => 'é', 'ê' => 'ê', 'ë' => 'ë', 'ì' => 'ì', 'í' => 'í', 'î' => 'î', 'ï' => 'ï', 'ð' => 'ð', 'ñ' => 'ñ', 'ò' => 'ò', 'ó' => 'ó', 'ô' => 'ô', 'õ' => 'õ', 'ö' => 'ö', '÷' => '÷', 'ø' => 'ø', 'ù' => 'ù', 'ú' => 'ú', 'û' => 'û', 'ü' => 'ü', 'ý' => 'ý', 'þ' => 'þ', 'ÿ' => 'ÿ', 'Œ' => 'Œ', 'œ' => 'œ', 'Š' => 'Š', 'š' => 'š', 'Ÿ' => 'Ÿ', 'ƒ' => 'ƒ', 'ˆ' => 'ˆ', '˜' => '˜', 'Α' => 'Α', 'Β' => 'Β', 'Γ' => 'Γ', 'Δ' => 'Δ', 'Ε' => 'Ε', 'Ζ' => 'Ζ', 'Η' => 'Η', 'Θ' => 'Θ', 'Ι' => 'Ι', 'Κ' => 'Κ', 'Λ' => 'Λ', 'Μ' => 'Μ', 'Ν' => 'Ν', 'Ξ' => 'Ξ', 'Ο' => 'Ο', 'Π' => 'Π', 'Ρ' => 'Ρ', 'Σ' => 'Σ', 'Τ' => 'Τ', 'Υ' => 'Υ', 'Φ' => 'Φ', 'Χ' => 'Χ', 'Ψ' => 'Ψ', 'Ω' => 'Ω', 'α' => 'α', 'β' => 'β', 'γ' => 'γ', 'δ' => 'δ', 'ε' => 'ε', 'ζ' => 'ζ', 'η' => 'η', 'θ' => 'θ', 'ι' => 'ι', 'κ' => 'κ', 'λ' => 'λ', 'μ' => 'μ', 'ν' => 'ν', 'ξ' => 'ξ', 'ο' => 'ο', 'π' => 'π', 'ρ' => 'ρ', 'ς' => 'ς', 'σ' => 'σ', 'τ' => 'τ', 'υ' => 'υ', 'φ' => 'φ', 'χ' => 'χ', 'ψ' => 'ψ', 'ω' => 'ω', 'ϑ' => 'ϑ', 'ϒ' => 'ϒ', 'ϖ' => 'ϖ', ' ' => ' ', ' ' => ' ', ' ' => ' ', '‌' => '‌', '‍' => '‍', '‎' => '‎', '‏' => '‏', '–' => '–', '—' => '—', '‘' => '‘', '’' => '’', '‚' => '‚', '“' => '“', '”' => '”', '„' => '„', '†' => '†', '‡' => '‡', '•' => '•', '…' => '…', '‰' => '‰', '′' => '′', '″' => '″', '‹' => '‹', '›' => '›', '‾' => '‾', '⁄' => '⁄', '€' => '€', 'ℑ' => 'ℑ', '℘' => '℘', 'ℜ' => 'ℜ', '™' => '™', 'ℵ' => 'ℵ', '↵' => '↵', '⇐' => '⇐', '⇑' => '⇑', '⇒' => '⇒', '⇓' => '⇓', '⇔' => '⇔', '∀' => '∀', '∂' => '∂', '∃' => '∃', '∅' => '∅', '∇' => '∇', '∈' => '∈', '∉' => '∉', '∋' => '∋', '∏' => '∏', '∑' => '∑', '−' => '−', '∗' => '∗', '√' => '√', '∝' => '∝', '∞' => '∞', '∠' => '∠', '∧' => '∧', '∨' => '∨', '∩' => '∩', '∪' => '∪', '∫' => '∫', '∴' => '∴', '∼' => '∼', '≅' => '≅', '≈' => '≈', '≠' => '≠', '≡' => '≡', '≤' => '≤', '≥' => '≥', '⊂' => '⊂', '⊃' => '⊃', '⊄' => '⊄', '⊆' => '⊆', '⊇' => '⊇', '⊕' => '⊕', '⊗' => '⊗', '⊥' => '⊥', '⋅' => '⋅', '⌈' => '⌈', '⌉' => '⌉', '⌊' => '⌊', '⌋' => '⌋', '⟨' => '〈', '⟩' => '〉', '←' => '←', '↑' => '↑', '→' => '→', '↓' => '↓', '↔' => '↔', '◊' => '◊', '♠' => '♠', '♣' => '♣', '♥' => '♥', '♦' => '♦' ); return str_replace( array_keys($to_ncr), array_values($to_ncr), $text ); } /** * Formats text for the editor. * * Generally the browsers treat everything inside a textarea as text, but * it is still a good idea to HTML entity encode `<`, `>` and `&` in the content. * * The filter {@see 'format_for_editor'} is applied here. If `$text` is empty the * filter will be applied to an empty string. * * @since 4.3.0 * * @see _WP_Editors::editor() * * @param string $text The text to be formatted. * @param string $default_editor The default editor for the current user. * It is usually either 'html' or 'tinymce'. * @return string The formatted text after filter is applied. */ function format_for_editor( $text, $default_editor = null ) { if ( $text ) { $text = htmlspecialchars( $text, ENT_NOQUOTES, get_option( 'blog_charset' ) ); } /** * Filters the text after it is formatted for the editor. * * @since 4.3.0 * * @param string $text The formatted text. * @param string $default_editor The default editor for the current user. * It is usually either 'html' or 'tinymce'. */ return apply_filters( 'format_for_editor', $text, $default_editor ); } /** * Perform a deep string replace operation to ensure the values in $search are no longer present * * Repeats the replacement operation until it no longer replaces anything so as to remove "nested" values * e.g. $subject = '%0%0%0DDD', $search ='%0D', $result ='' rather than the '%0%0DD' that * str_replace would return * * @since 2.8.1 * @access private * * @param string|array $search The value being searched for, otherwise known as the needle. * An array may be used to designate multiple needles. * @param string $subject The string being searched and replaced on, otherwise known as the haystack. * @return string The string with the replaced svalues. */ function _deep_replace( $search, $subject ) { $subject = (string) $subject; $count = 1; while ( $count ) { $subject = str_replace( $search, '', $subject, $count ); } return $subject; } /** * Escapes data for use in a MySQL query. * * Usually you should prepare queries using wpdb::prepare(). * Sometimes, spot-escaping is required or useful. One example * is preparing an array for use in an IN clause. * * @since 2.8.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string|array $data Unescaped data * @return string|array Escaped data */ function esc_sql( $data ) { global $wpdb; return $wpdb->_escape( $data ); } /** * Checks and cleans a URL. * * A number of characters are removed from the URL. If the URL is for displaying * (the default behaviour) ampersands are also replaced. The {@see 'clean_url'} filter * is applied to the returned cleaned URL. * * @since 2.8.0 * * @param string $url The URL to be cleaned. * @param array $protocols Optional. An array of acceptable protocols. * Defaults to return value of wp_allowed_protocols() * @param string $_context Private. Use esc_url_raw() for database usage. * @return string The cleaned $url after the {@see 'clean_url'} filter is applied. */ function esc_url( $url, $protocols = null, $_context = 'display' ) { $original_url = $url; if ( '' == $url ) return $url; $url = str_replace( ' ', '%20', $url ); $url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\[\]\\x80-\\xff]|i', '', $url); if ( '' === $url ) { return $url; } if ( 0 !== stripos( $url, 'mailto:' ) ) { $strip = array('%0d', '%0a', '%0D', '%0A'); $url = _deep_replace($strip, $url); } $url = str_replace(';//', '://', $url); /* If the URL doesn't appear to contain a scheme, we * presume it needs http:// prepended (unless a relative * link starting with /, # or ? or a php file). */ if ( strpos($url, ':') === false && ! in_array( $url[0], array( '/', '#', '?' ) ) && ! preg_match('/^[a-z0-9-]+?\.php/i', $url) ) $url = 'http://' . $url; // Replace ampersands and single quotes only when displaying. if ( 'display' == $_context ) { $url = wp_kses_normalize_entities( $url ); $url = str_replace( '&', '&', $url ); $url = str_replace( "'", ''', $url ); } if ( ( false !== strpos( $url, '[' ) ) || ( false !== strpos( $url, ']' ) ) ) { $parsed = wp_parse_url( $url ); $front = ''; if ( isset( $parsed['scheme'] ) ) { $front .= $parsed['scheme'] . '://'; } elseif ( '/' === $url[0] ) { $front .= '//'; } if ( isset( $parsed['user'] ) ) { $front .= $parsed['user']; } if ( isset( $parsed['pass'] ) ) { $front .= ':' . $parsed['pass']; } if ( isset( $parsed['user'] ) || isset( $parsed['pass'] ) ) { $front .= '@'; } if ( isset( $parsed['host'] ) ) { $front .= $parsed['host']; } if ( isset( $parsed['port'] ) ) { $front .= ':' . $parsed['port']; } $end_dirty = str_replace( $front, '', $url ); $end_clean = str_replace( array( '[', ']' ), array( '%5B', '%5D' ), $end_dirty ); $url = str_replace( $end_dirty, $end_clean, $url ); } if ( '/' === $url[0] ) { $good_protocol_url = $url; } else { if ( ! is_array( $protocols ) ) $protocols = wp_allowed_protocols(); $good_protocol_url = wp_kses_bad_protocol( $url, $protocols ); if ( strtolower( $good_protocol_url ) != strtolower( $url ) ) return ''; } /** * Filters a string cleaned and escaped for output as a URL. * * @since 2.3.0 * * @param string $good_protocol_url The cleaned URL to be returned. * @param string $original_url The URL prior to cleaning. * @param string $_context If 'display', replace ampersands and single quotes only. */ return apply_filters( 'clean_url', $good_protocol_url, $original_url, $_context ); } /** * Performs esc_url() for database usage. * * @since 2.8.0 * * @param string $url The URL to be cleaned. * @param array $protocols An array of acceptable protocols. * @return string The cleaned URL. */ function esc_url_raw( $url, $protocols = null ) { return esc_url( $url, $protocols, 'db' ); } /** * Convert entities, while preserving already-encoded entities. * * @link https://secure.php.net/htmlentities Borrowed from the PHP Manual user notes. * * @since 1.2.2 * * @param string $myHTML The text to be converted. * @return string Converted text. */ function htmlentities2( $myHTML ) { $translation_table = get_html_translation_table( HTML_ENTITIES, ENT_QUOTES ); $translation_table[chr(38)] = '&'; return preg_replace( "/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/", "&", strtr($myHTML, $translation_table) ); } /** * Escape single quotes, htmlspecialchar " < > &, and fix line endings. * * Escapes text strings for echoing in JS. It is intended to be used for inline JS * (in a tag attribute, for example onclick="..."). Note that the strings have to * be in single quotes. The {@see 'js_escape'} filter is also applied here. * * @since 2.8.0 * * @param string $text The text to be escaped. * @return string Escaped text. */ function esc_js( $text ) { $safe_text = wp_check_invalid_utf8( $text ); $safe_text = _wp_specialchars( $safe_text, ENT_COMPAT ); $safe_text = preg_replace( '/&#(x)?0*(?(1)27|39);?/i', "'", stripslashes( $safe_text ) ); $safe_text = str_replace( "\r", '', $safe_text ); $safe_text = str_replace( "\n", '\\n', addslashes( $safe_text ) ); /** * Filters a string cleaned and escaped for output in JavaScript. * * Text passed to esc_js() is stripped of invalid or special characters, * and properly slashed for output. * * @since 2.0.6 * * @param string $safe_text The text after it has been escaped. * @param string $text The text prior to being escaped. */ return apply_filters( 'js_escape', $safe_text, $text ); } /** * Escaping for HTML blocks. * * @since 2.8.0 * * @param string $text * @return string */ function esc_html( $text ) { $safe_text = wp_check_invalid_utf8( $text ); $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES ); /** * Filters a string cleaned and escaped for output in HTML. * * Text passed to esc_html() is stripped of invalid or special characters * before output. * * @since 2.8.0 * * @param string $safe_text The text after it has been escaped. * @param string $text The text prior to being escaped. */ return apply_filters( 'esc_html', $safe_text, $text ); } /** * Escaping for HTML attributes. * * @since 2.8.0 * * @param string $text * @return string */ function esc_attr( $text ) { $safe_text = wp_check_invalid_utf8( $text ); $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES ); /** * Filters a string cleaned and escaped for output in an HTML attribute. * * Text passed to esc_attr() is stripped of invalid or special characters * before output. * * @since 2.0.6 * * @param string $safe_text The text after it has been escaped. * @param string $text The text prior to being escaped. */ return apply_filters( 'attribute_escape', $safe_text, $text ); } /** * Escaping for textarea values. * * @since 3.1.0 * * @param string $text * @return string */ function esc_textarea( $text ) { $safe_text = htmlspecialchars( $text, ENT_QUOTES, get_option( 'blog_charset' ) ); /** * Filters a string cleaned and escaped for output in a textarea element. * * @since 3.1.0 * * @param string $safe_text The text after it has been escaped. * @param string $text The text prior to being escaped. */ return apply_filters( 'esc_textarea', $safe_text, $text ); } /** * Escape an HTML tag name. * * @since 2.5.0 * * @param string $tag_name * @return string */ function tag_escape( $tag_name ) { $safe_tag = strtolower( preg_replace('/[^a-zA-Z0-9_:]/', '', $tag_name) ); /** * Filters a string cleaned and escaped for output as an HTML tag. * * @since 2.8.0 * * @param string $safe_tag The tag name after it has been escaped. * @param string $tag_name The text before it was escaped. */ return apply_filters( 'tag_escape', $safe_tag, $tag_name ); } /** * Convert full URL paths to absolute paths. * * Removes the http or https protocols and the domain. Keeps the path '/' at the * beginning, so it isn't a true relative link, but from the web root base. * * @since 2.1.0 * @since 4.1.0 Support was added for relative URLs. * * @param string $link Full URL path. * @return string Absolute path. */ function wp_make_link_relative( $link ) { return preg_replace( '|^(https?:)?//[^/]+(/?.*)|i', '$2', $link ); } /** * Sanitises various option values based on the nature of the option. * * This is basically a switch statement which will pass $value through a number * of functions depending on the $option. * * @since 2.0.5 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $option The name of the option. * @param string $value The unsanitised value. * @return string Sanitized value. */ function sanitize_option( $option, $value ) { global $wpdb; $original_value = $value; $error = ''; switch ( $option ) { case 'admin_email' : case 'new_admin_email' : $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { $value = sanitize_email( $value ); if ( ! is_email( $value ) ) { $error = __( 'The email address entered did not appear to be a valid email address. Please enter a valid email address.' ); } } break; case 'thumbnail_size_w': case 'thumbnail_size_h': case 'medium_size_w': case 'medium_size_h': case 'medium_large_size_w': case 'medium_large_size_h': case 'large_size_w': case 'large_size_h': case 'mailserver_port': case 'comment_max_links': case 'page_on_front': case 'page_for_posts': case 'rss_excerpt_length': case 'default_category': case 'default_email_category': case 'default_link_category': case 'close_comments_days_old': case 'comments_per_page': case 'thread_comments_depth': case 'users_can_register': case 'start_of_week': case 'site_icon': $value = absint( $value ); break; case 'posts_per_page': case 'posts_per_rss': $value = (int) $value; if ( empty($value) ) $value = 1; if ( $value < -1 ) $value = abs($value); break; case 'default_ping_status': case 'default_comment_status': // Options that if not there have 0 value but need to be something like "closed" if ( $value == '0' || $value == '') $value = 'closed'; break; case 'blogdescription': case 'blogname': $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( $value !== $original_value ) { $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', wp_encode_emoji( $original_value ) ); } if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { $value = esc_html( $value ); } break; case 'blog_charset': $value = preg_replace('/[^a-zA-Z0-9_-]/', '', $value); // strips slashes break; case 'blog_public': // This is the value if the settings checkbox is not checked on POST. Don't rely on this. if ( null === $value ) $value = 1; else $value = intval( $value ); break; case 'date_format': case 'time_format': case 'mailserver_url': case 'mailserver_login': case 'mailserver_pass': case 'upload_path': $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { $value = strip_tags( $value ); $value = wp_kses_data( $value ); } break; case 'ping_sites': $value = explode( "\n", $value ); $value = array_filter( array_map( 'trim', $value ) ); $value = array_filter( array_map( 'esc_url_raw', $value ) ); $value = implode( "\n", $value ); break; case 'gmt_offset': $value = preg_replace('/[^0-9:.-]/', '', $value); // strips slashes break; case 'siteurl': $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { if ( preg_match( '#http(s?)://(.+)#i', $value ) ) { $value = esc_url_raw( $value ); } else { $error = __( 'The WordPress address you entered did not appear to be a valid URL. Please enter a valid URL.' ); } } break; case 'home': $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { if ( preg_match( '#http(s?)://(.+)#i', $value ) ) { $value = esc_url_raw( $value ); } else { $error = __( 'The Site address you entered did not appear to be a valid URL. Please enter a valid URL.' ); } } break; case 'WPLANG': $allowed = get_available_languages(); if ( ! is_multisite() && defined( 'WPLANG' ) && '' !== WPLANG && 'en_US' !== WPLANG ) { $allowed[] = WPLANG; } if ( ! in_array( $value, $allowed ) && ! empty( $value ) ) { $value = get_option( $option ); } break; case 'illegal_names': $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { if ( ! is_array( $value ) ) $value = explode( ' ', $value ); $value = array_values( array_filter( array_map( 'trim', $value ) ) ); if ( ! $value ) $value = ''; } break; case 'limited_email_domains': case 'banned_email_domains': $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { if ( ! is_array( $value ) ) $value = explode( "\n", $value ); $domains = array_values( array_filter( array_map( 'trim', $value ) ) ); $value = array(); foreach ( $domains as $domain ) { if ( ! preg_match( '/(--|\.\.)/', $domain ) && preg_match( '|^([a-zA-Z0-9-\.])+$|', $domain ) ) { $value[] = $domain; } } if ( ! $value ) $value = ''; } break; case 'timezone_string': $allowed_zones = timezone_identifiers_list(); if ( ! in_array( $value, $allowed_zones ) && ! empty( $value ) ) { $error = __( 'The timezone you have entered is not valid. Please select a valid timezone.' ); } break; case 'permalink_structure': case 'category_base': case 'tag_base': $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { $value = esc_url_raw( $value ); $value = str_replace( 'http://', '', $value ); } if ( 'permalink_structure' === $option && '' !== $value && ! preg_match( '/%[^\/%]+%/', $value ) ) { $error = sprintf( /* translators: %s: Codex URL */ __( 'A structure tag is required when using custom permalinks. <a href="%s">Learn more</a>' ), __( 'https://codex.wordpress.org/Using_Permalinks#Choosing_your_permalink_structure' ) ); } break; case 'default_role' : if ( ! get_role( $value ) && get_role( 'subscriber' ) ) $value = 'subscriber'; break; case 'moderation_keys': case 'blacklist_keys': $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); if ( is_wp_error( $value ) ) { $error = $value->get_error_message(); } else { $value = explode( "\n", $value ); $value = array_filter( array_map( 'trim', $value ) ); $value = array_unique( $value ); $value = implode( "\n", $value ); } break; } if ( ! empty( $error ) ) { $value = get_option( $option ); if ( function_exists( 'add_settings_error' ) ) { add_settings_error( $option, "invalid_{$option}", $error ); } } /** * Filters an option value following sanitization. * * @since 2.3.0 * @since 4.3.0 Added the `$original_value` parameter. * * @param string $value The sanitized option value. * @param string $option The option name. * @param string $original_value The original value passed to the function. */ return apply_filters( "sanitize_option_{$option}", $value, $option, $original_value ); } /** * Maps a function to all non-iterable elements of an array or an object. * * This is similar to `array_walk_recursive()` but acts upon objects too. * * @since 4.4.0 * * @param mixed $value The array, object, or scalar. * @param callable $callback The function to map onto $value. * @return mixed The value with the callback applied to all non-arrays and non-objects inside it. */ function map_deep( $value, $callback ) { if ( is_array( $value ) ) { foreach ( $value as $index => $item ) { $value[ $index ] = map_deep( $item, $callback ); } } elseif ( is_object( $value ) ) { $object_vars = get_object_vars( $value ); foreach ( $object_vars as $property_name => $property_value ) { $value->$property_name = map_deep( $property_value, $callback ); } } else { $value = call_user_func( $callback, $value ); } return $value; } /** * Parses a string into variables to be stored in an array. * * Uses {@link https://secure.php.net/parse_str parse_str()} and stripslashes if * {@link https://secure.php.net/magic_quotes magic_quotes_gpc} is on. * * @since 2.2.1 * * @param string $string The string to be parsed. * @param array $array Variables will be stored in this array. */ function wp_parse_str( $string, &$array ) { parse_str( $string, $array ); if ( get_magic_quotes_gpc() ) $array = stripslashes_deep( $array ); /** * Filters the array of variables derived from a parsed string. * * @since 2.3.0 * * @param array $array The array populated with variables. */ $array = apply_filters( 'wp_parse_str', $array ); } /** * Convert lone less than signs. * * KSES already converts lone greater than signs. * * @since 2.3.0 * * @param string $text Text to be converted. * @return string Converted text. */ function wp_pre_kses_less_than( $text ) { return preg_replace_callback('%<[^>]*?((?=<)|>|$)%', 'wp_pre_kses_less_than_callback', $text); } /** * Callback function used by preg_replace. * * @since 2.3.0 * * @param array $matches Populated by matches to preg_replace. * @return string The text returned after esc_html if needed. */ function wp_pre_kses_less_than_callback( $matches ) { if ( false === strpos($matches[0], '>') ) return esc_html($matches[0]); return $matches[0]; } /** * WordPress implementation of PHP sprintf() with filters. * * @since 2.5.0 * @link https://secure.php.net/sprintf * * @param string $pattern The string which formatted args are inserted. * @param mixed $args ,... Arguments to be formatted into the $pattern string. * @return string The formatted string. */ function wp_sprintf( $pattern ) { $args = func_get_args(); $len = strlen($pattern); $start = 0; $result = ''; $arg_index = 0; while ( $len > $start ) { // Last character: append and break if ( strlen($pattern) - 1 == $start ) { $result .= substr($pattern, -1); break; } // Literal %: append and continue if ( substr($pattern, $start, 2) == '%%' ) { $start += 2; $result .= '%'; continue; } // Get fragment before next % $end = strpos($pattern, '%', $start + 1); if ( false === $end ) $end = $len; $fragment = substr($pattern, $start, $end - $start); // Fragment has a specifier if ( $pattern[$start] == '%' ) { // Find numbered arguments or take the next one in order if ( preg_match('/^%(\d+)\$/', $fragment, $matches) ) { $arg = isset($args[$matches[1]]) ? $args[$matches[1]] : ''; $fragment = str_replace("%{$matches[1]}$", '%', $fragment); } else { ++$arg_index; $arg = isset($args[$arg_index]) ? $args[$arg_index] : ''; } /** * Filters a fragment from the pattern passed to wp_sprintf(). * * If the fragment is unchanged, then sprintf() will be run on the fragment. * * @since 2.5.0 * * @param string $fragment A fragment from the pattern. * @param string $arg The argument. */ $_fragment = apply_filters( 'wp_sprintf', $fragment, $arg ); if ( $_fragment != $fragment ) $fragment = $_fragment; else $fragment = sprintf($fragment, strval($arg) ); } // Append to result and move to next fragment $result .= $fragment; $start = $end; } return $result; } /** * Localize list items before the rest of the content. * * The '%l' must be at the first characters can then contain the rest of the * content. The list items will have ', ', ', and', and ' and ' added depending * on the amount of list items in the $args parameter. * * @since 2.5.0 * * @param string $pattern Content containing '%l' at the beginning. * @param array $args List items to prepend to the content and replace '%l'. * @return string Localized list items and rest of the content. */ function wp_sprintf_l( $pattern, $args ) { // Not a match if ( substr($pattern, 0, 2) != '%l' ) return $pattern; // Nothing to work with if ( empty($args) ) return ''; /** * Filters the translated delimiters used by wp_sprintf_l(). * Placeholders (%s) are included to assist translators and then * removed before the array of strings reaches the filter. * * Please note: Ampersands and entities should be avoided here. * * @since 2.5.0 * * @param array $delimiters An array of translated delimiters. */ $l = apply_filters( 'wp_sprintf_l', array( /* translators: used to join items in a list with more than 2 items */ 'between' => sprintf( __('%s, %s'), '', '' ), /* translators: used to join last two items in a list with more than 2 times */ 'between_last_two' => sprintf( __('%s, and %s'), '', '' ), /* translators: used to join items in a list with only 2 items */ 'between_only_two' => sprintf( __('%s and %s'), '', '' ), ) ); $args = (array) $args; $result = array_shift($args); if ( count($args) == 1 ) $result .= $l['between_only_two'] . array_shift($args); // Loop when more than two args $i = count($args); while ( $i ) { $arg = array_shift($args); $i--; if ( 0 == $i ) $result .= $l['between_last_two'] . $arg; else $result .= $l['between'] . $arg; } return $result . substr($pattern, 2); } /** * Safely extracts not more than the first $count characters from html string. * * UTF-8, tags and entities safe prefix extraction. Entities inside will *NOT* * be counted as one character. For example & will be counted as 4, < as * 3, etc. * * @since 2.5.0 * * @param string $str String to get the excerpt from. * @param int $count Maximum number of characters to take. * @param string $more Optional. What to append if $str needs to be trimmed. Defaults to empty string. * @return string The excerpt. */ function wp_html_excerpt( $str, $count, $more = null ) { if ( null === $more ) $more = ''; $str = wp_strip_all_tags( $str, true ); $excerpt = mb_substr( $str, 0, $count ); // remove part of an entity at the end $excerpt = preg_replace( '/&[^;\s]{0,6}$/', '', $excerpt ); if ( $str != $excerpt ) $excerpt = trim( $excerpt ) . $more; return $excerpt; } /** * Add a Base url to relative links in passed content. * * By default it supports the 'src' and 'href' attributes. However this can be * changed via the 3rd param. * * @since 2.7.0 * * @global string $_links_add_base * * @param string $content String to search for links in. * @param string $base The base URL to prefix to links. * @param array $attrs The attributes which should be processed. * @return string The processed content. */ function links_add_base_url( $content, $base, $attrs = array('src', 'href') ) { global $_links_add_base; $_links_add_base = $base; $attrs = implode('|', (array)$attrs); return preg_replace_callback( "!($attrs)=(['\"])(.+?)\\2!i", '_links_add_base', $content ); } /** * Callback to add a base url to relative links in passed content. * * @since 2.7.0 * @access private * * @global string $_links_add_base * * @param string $m The matched link. * @return string The processed link. */ function _links_add_base( $m ) { global $_links_add_base; //1 = attribute name 2 = quotation mark 3 = URL return $m[1] . '=' . $m[2] . ( preg_match( '#^(\w{1,20}):#', $m[3], $protocol ) && in_array( $protocol[1], wp_allowed_protocols() ) ? $m[3] : WP_Http::make_absolute_url( $m[3], $_links_add_base ) ) . $m[2]; } /** * Adds a Target attribute to all links in passed content. * * This function by default only applies to `<a>` tags, however this can be * modified by the 3rd param. * * *NOTE:* Any current target attributed will be stripped and replaced. * * @since 2.7.0 * * @global string $_links_add_target * * @param string $content String to search for links in. * @param string $target The Target to add to the links. * @param array $tags An array of tags to apply to. * @return string The processed content. */ function links_add_target( $content, $target = '_blank', $tags = array('a') ) { global $_links_add_target; $_links_add_target = $target; $tags = implode('|', (array)$tags); return preg_replace_callback( "!<($tags)([^>]*)>!i", '_links_add_target', $content ); } /** * Callback to add a target attribute to all links in passed content. * * @since 2.7.0 * @access private * * @global string $_links_add_target * * @param string $m The matched link. * @return string The processed link. */ function _links_add_target( $m ) { global $_links_add_target; $tag = $m[1]; $link = preg_replace('|( target=([\'"])(.*?)\2)|i', '', $m[2]); return '<' . $tag . $link . ' target="' . esc_attr( $_links_add_target ) . '">'; } /** * Normalize EOL characters and strip duplicate whitespace. * * @since 2.7.0 * * @param string $str The string to normalize. * @return string The normalized string. */ function normalize_whitespace( $str ) { $str = trim( $str ); $str = str_replace( "\r", "\n", $str ); $str = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $str ); return $str; } /** * Properly strip all HTML tags including script and style * * This differs from strip_tags() because it removes the contents of * the `<script>` and `<style>` tags. E.g. `strip_tags( '<script>something</script>' )` * will return 'something'. wp_strip_all_tags will return '' * * @since 2.9.0 * * @param string $string String containing HTML tags * @param bool $remove_breaks Optional. Whether to remove left over line breaks and white space chars * @return string The processed string. */ function wp_strip_all_tags($string, $remove_breaks = false) { $string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $string ); $string = strip_tags($string); if ( $remove_breaks ) $string = preg_replace('/[\r\n\t ]+/', ' ', $string); return trim( $string ); } /** * Sanitizes a string from user input or from the database. * * - Checks for invalid UTF-8, * - Converts single `<` characters to entities * - Strips all tags * - Removes line breaks, tabs, and extra whitespace * - Strips octets * * @since 2.9.0 * * @see wp_check_invalid_utf8() * @see wp_strip_all_tags() * * @param string $str String to sanitize. * @return string Sanitized string. */ function sanitize_text_field( $str ) { $filtered = wp_check_invalid_utf8( $str ); if ( strpos($filtered, '<') !== false ) { $filtered = wp_pre_kses_less_than( $filtered ); // This will strip extra whitespace for us. $filtered = wp_strip_all_tags( $filtered, true ); } else { $filtered = trim( preg_replace('/[\r\n\t ]+/', ' ', $filtered) ); } $found = false; while ( preg_match('/%[a-f0-9]{2}/i', $filtered, $match) ) { $filtered = str_replace($match[0], '', $filtered); $found = true; } if ( $found ) { // Strip out the whitespace that may now exist after removing the octets. $filtered = trim( preg_replace('/ +/', ' ', $filtered) ); } /** * Filters a sanitized text field string. * * @since 2.9.0 * * @param string $filtered The sanitized string. * @param string $str The string prior to being sanitized. */ return apply_filters( 'sanitize_text_field', $filtered, $str ); } /** * i18n friendly version of basename() * * @since 3.1.0 * * @param string $path A path. * @param string $suffix If the filename ends in suffix this will also be cut off. * @return string */ function wp_basename( $path, $suffix = '' ) { return urldecode( basename( str_replace( array( '%2F', '%5C' ), '/', urlencode( $path ) ), $suffix ) ); } /** * Forever eliminate "Wordpress" from the planet (or at least the little bit we can influence). * * Violating our coding standards for a good function name. * * @since 3.0.0 * * @staticvar string|false $dblq * * @param string $text The text to be modified. * @return string The modified text. */ function capital_P_dangit( $text ) { // Simple replacement for titles $current_filter = current_filter(); if ( 'the_title' === $current_filter || 'wp_title' === $current_filter ) return str_replace( 'Wordpress', 'WordPress', $text ); // Still here? Use the more judicious replacement static $dblq = false; if ( false === $dblq ) { $dblq = _x( '“', 'opening curly double quote' ); } return str_replace( array( ' Wordpress', '‘Wordpress', $dblq . 'Wordpress', '>Wordpress', '(Wordpress' ), array( ' WordPress', '‘WordPress', $dblq . 'WordPress', '>WordPress', '(WordPress' ), $text ); } /** * Sanitize a mime type * * @since 3.1.3 * * @param string $mime_type Mime type * @return string Sanitized mime type */ function sanitize_mime_type( $mime_type ) { $sani_mime_type = preg_replace( '/[^-+*.a-zA-Z0-9\/]/', '', $mime_type ); /** * Filters a mime type following sanitization. * * @since 3.1.3 * * @param string $sani_mime_type The sanitized mime type. * @param string $mime_type The mime type prior to sanitization. */ return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type ); } /** * Sanitize space or carriage return separated URLs that are used to send trackbacks. * * @since 3.4.0 * * @param string $to_ping Space or carriage return separated URLs * @return string URLs starting with the http or https protocol, separated by a carriage return. */ function sanitize_trackback_urls( $to_ping ) { $urls_to_ping = preg_split( '/[\r\n\t ]/', trim( $to_ping ), -1, PREG_SPLIT_NO_EMPTY ); foreach ( $urls_to_ping as $k => $url ) { if ( !preg_match( '#^https?://.#i', $url ) ) unset( $urls_to_ping[$k] ); } $urls_to_ping = array_map( 'esc_url_raw', $urls_to_ping ); $urls_to_ping = implode( "\n", $urls_to_ping ); /** * Filters a list of trackback URLs following sanitization. * * The string returned here consists of a space or carriage return-delimited list * of trackback URLs. * * @since 3.4.0 * * @param string $urls_to_ping Sanitized space or carriage return separated URLs. * @param string $to_ping Space or carriage return separated URLs before sanitization. */ return apply_filters( 'sanitize_trackback_urls', $urls_to_ping, $to_ping ); } /** * Add slashes to a string or array of strings. * * This should be used when preparing data for core API that expects slashed data. * This should not be used to escape data going directly into an SQL query. * * @since 3.6.0 * * @param string|array $value String or array of strings to slash. * @return string|array Slashed $value */ function wp_slash( $value ) { if ( is_array( $value ) ) { foreach ( $value as $k => $v ) { if ( is_array( $v ) ) { $value[$k] = wp_slash( $v ); } else { $value[$k] = addslashes( $v ); } } } else { $value = addslashes( $value ); } return $value; } /** * Remove slashes from a string or array of strings. * * This should be used to remove slashes from data passed to core API that * expects data to be unslashed. * * @since 3.6.0 * * @param string|array $value String or array of strings to unslash. * @return string|array Unslashed $value */ function wp_unslash( $value ) { return stripslashes_deep( $value ); } /** * Extract and return the first URL from passed content. * * @since 3.6.0 * * @param string $content A string which might contain a URL. * @return string|false The found URL. */ function get_url_in_content( $content ) { if ( empty( $content ) ) { return false; } if ( preg_match( '/<a\s[^>]*?href=([\'"])(.+?)\1/is', $content, $matches ) ) { return esc_url_raw( $matches[2] ); } return false; } /** * Returns the regexp for common whitespace characters. * * By default, spaces include new lines, tabs, nbsp entities, and the UTF-8 nbsp. * This is designed to replace the PCRE \s sequence. In ticket #22692, that * sequence was found to be unreliable due to random inclusion of the A0 byte. * * @since 4.0.0 * * @staticvar string $spaces * * @return string The spaces regexp. */ function wp_spaces_regexp() { static $spaces = ''; if ( empty( $spaces ) ) { /** * Filters the regexp for common whitespace characters. * * This string is substituted for the \s sequence as needed in regular * expressions. For websites not written in English, different characters * may represent whitespace. For websites not encoded in UTF-8, the 0xC2 0xA0 * sequence may not be in use. * * @since 4.0.0 * * @param string $spaces Regexp pattern for matching common whitespace characters. */ $spaces = apply_filters( 'wp_spaces_regexp', '[\r\n\t ]|\xC2\xA0| ' ); } return $spaces; } /** * Print the important emoji-related styles. * * @since 4.2.0 * * @staticvar bool $printed */ function print_emoji_styles() { static $printed = false; if ( $printed ) { return; } $printed = true; ?> <style type="text/css"> img.wp-smiley, img.emoji { display: inline !important; border: none !important; box-shadow: none !important; height: 1em !important; width: 1em !important; margin: 0 .07em !important; vertical-align: -0.1em !important; background: none !important; padding: 0 !important; } </style> <?php } /** * Print the inline Emoji detection script if it is not already printed. * * @since 4.2.0 * @staticvar bool $printed */ function print_emoji_detection_script() { static $printed = false; if ( $printed ) { return; } $printed = true; _print_emoji_detection_script(); } /** * Prints inline Emoji dection script * * @ignore * @since 4.6.0 * @access private * * @global string $wp_version WordPress version string. */ function _print_emoji_detection_script() { global $wp_version; $settings = array( /** * Filters the URL where emoji png images are hosted. * * @since 4.2.0 * * @param string The emoji base URL for png images. */ 'baseUrl' => apply_filters( 'emoji_url', 'https://s.w.org/images/core/emoji/2/72x72/' ), /** * Filters the extension of the emoji png files. * * @since 4.2.0 * * @param string The emoji extension for png files. Default .png. */ 'ext' => apply_filters( 'emoji_ext', '.png' ), /** * Filters the URL where emoji SVG images are hosted. * * @since 4.6.0 * * @param string The emoji base URL for svg images. */ 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/2/svg/' ), /** * Filters the extension of the emoji SVG files. * * @since 4.6.0 * * @param string The emoji extension for svg files. Default .svg. */ 'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ), ); $version = 'ver=' . $wp_version; if ( SCRIPT_DEBUG ) { $settings['source'] = array( /** This filter is documented in wp-includes/class.wp-scripts.php */ 'wpemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji.js?$version" ), 'wpemoji' ), /** This filter is documented in wp-includes/class.wp-scripts.php */ 'twemoji' => apply_filters( 'script_loader_src', includes_url( "js/twemoji.js?$version" ), 'twemoji' ), ); ?> <script type="text/javascript"> window._wpemojiSettings = <?php echo wp_json_encode( $settings ); ?>; <?php readfile( ABSPATH . WPINC . "/js/wp-emoji-loader.js" ); ?> </script> <?php } else { $settings['source'] = array( /** This filter is documented in wp-includes/class.wp-scripts.php */ 'concatemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji-release.min.js?$version" ), 'concatemoji' ), ); /* * If you're looking at a src version of this file, you'll see an "include" * statement below. This is used by the `grunt build` process to directly * include a minified version of wp-emoji-loader.js, instead of using the * readfile() method from above. * * If you're looking at a build version of this file, you'll see a string of * minified JavaScript. If you need to debug it, please turn on SCRIPT_DEBUG * and edit wp-emoji-loader.js directly. */ ?> <script type="text/javascript"> window._wpemojiSettings = <?php echo wp_json_encode( $settings ); ?>; !function(e,o,t){var a,n,r;function i(e){var t=o.createElement("script");t.src=e,t.type="text/javascript",o.getElementsByTagName("head")[0].appendChild(t)}for(r=Array("simple","flag","unicode8","diversity","unicode9"),t.supports={everything:!0,everythingExceptFlag:!0},n=0;n<r.length;n++)t.supports[r[n]]=function(e){var t,a,n=o.createElement("canvas"),r=n.getContext&&n.getContext("2d"),i=String.fromCharCode;if(!r||!r.fillText)return!1;switch(r.textBaseline="top",r.font="600 32px Arial",e){case"flag":return(r.fillText(i(55356,56806,55356,56826),0,0),n.toDataURL().length<3e3)?!1:(r.clearRect(0,0,n.width,n.height),r.fillText(i(55356,57331,65039,8205,55356,57096),0,0),a=n.toDataURL(),r.clearRect(0,0,n.width,n.height),r.fillText(i(55356,57331,55356,57096),0,0),a!==n.toDataURL());case"diversity":return r.fillText(i(55356,57221),0,0),a=(t=r.getImageData(16,16,1,1).data)[0]+","+t[1]+","+t[2]+","+t[3],r.fillText(i(55356,57221,55356,57343),0,0),a!=(t=r.getImageData(16,16,1,1).data)[0]+","+t[1]+","+t[2]+","+t[3];case"simple":return r.fillText(i(55357,56835),0,0),0!==r.getImageData(16,16,1,1).data[0];case"unicode8":return r.fillText(i(55356,57135),0,0),0!==r.getImageData(16,16,1,1).data[0];case"unicode9":return r.fillText(i(55358,56631),0,0),0!==r.getImageData(16,16,1,1).data[0]}return!1}(r[n]),t.supports.everything=t.supports.everything&&t.supports[r[n]],"flag"!==r[n]&&(t.supports.everythingExceptFlag=t.supports.everythingExceptFlag&&t.supports[r[n]]);t.supports.everythingExceptFlag=t.supports.everythingExceptFlag&&!t.supports.flag,t.DOMReady=!1,t.readyCallback=function(){t.DOMReady=!0},t.supports.everything||(a=function(){t.readyCallback()},o.addEventListener?(o.addEventListener("DOMContentLoaded",a,!1),e.addEventListener("load",a,!1)):(e.attachEvent("onload",a),o.attachEvent("onreadystatechange",function(){"complete"===o.readyState&&t.readyCallback()})),(a=t.source||{}).concatemoji?i(a.concatemoji):a.wpemoji&&a.twemoji&&(i(a.twemoji),i(a.wpemoji)))}(window,document,window._wpemojiSettings); </script> <?php } } /** * Convert any 4 byte emoji in a string to their equivalent HTML entity. * * Currently, only Unicode 7 emoji are supported. Skin tone modifiers are allowed, * all other Unicode 8 emoji will be added when the spec is finalised. * * This allows us to store emoji in a DB using the utf8 character set. * * @since 4.2.0 * * @param string $content The content to encode. * @return string The encoded content. */ function wp_encode_emoji( $content ) { if ( function_exists( 'mb_convert_encoding' ) ) { $regex = '/( \x23\xE2\x83\xA3 # Digits [\x30-\x39]\xE2\x83\xA3 | \xF0\x9F[\x85-\x88][\xA6-\xBF] # Enclosed characters | \xF0\x9F[\x8C-\x97][\x80-\xBF] # Misc | \xF0\x9F\x98[\x80-\xBF] # Smilies | \xF0\x9F\x99[\x80-\x8F] | \xF0\x9F\x9A[\x80-\xBF] # Transport and map symbols )/x'; $matches = array(); if ( preg_match_all( $regex, $content, $matches ) ) { if ( ! empty( $matches[1] ) ) { foreach ( $matches[1] as $emoji ) { /* * UTF-32's hex encoding is the same as HTML's hex encoding. * So, by converting the emoji from UTF-8 to UTF-32, we magically * get the correct hex encoding. */ $unpacked = unpack( 'H*', mb_convert_encoding( $emoji, 'UTF-32', 'UTF-8' ) ); if ( isset( $unpacked[1] ) ) { $entity = '&#x' . ltrim( $unpacked[1], '0' ) . ';'; $content = str_replace( $emoji, $entity, $content ); } } } } } return $content; } /** * Convert emoji to a static img element. * * @since 4.2.0 * * @param string $text The content to encode. * @return string The encoded content. */ function wp_staticize_emoji( $text ) { $text = wp_encode_emoji( $text ); /** This filter is documented in wp-includes/formatting.php */ $cdn_url = apply_filters( 'emoji_url', 'https://s.w.org/images/core/emoji/2/72x72/' ); /** This filter is documented in wp-includes/formatting.php */ $ext = apply_filters( 'emoji_ext', '.png' ); $output = ''; /* * HTML loop taken from smiley function, which was taken from texturize function. * It'll never be consolidated. * * First, capture the tags as well as in between. */ $textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); $stop = count( $textarr ); // Ignore processing of specific tags. $tags_to_ignore = 'code|pre|style|script|textarea'; $ignore_block_element = ''; for ( $i = 0; $i < $stop; $i++ ) { $content = $textarr[$i]; // If we're in an ignore block, wait until we find its closing tag. if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')>/', $content, $matches ) ) { $ignore_block_element = $matches[1]; } // If it's not a tag and not in ignore block. if ( '' == $ignore_block_element && strlen( $content ) > 0 && '<' != $content[0] ) { $matches = array(); if ( preg_match_all( '/(DZ(e[6-9a-f]|f[0-9a-f]);){2}/', $content, $matches ) ) { if ( ! empty( $matches[0] ) ) { foreach ( $matches[0] as $flag ) { $chars = str_replace( array( '&#x', ';'), '', $flag ); list( $char1, $char2 ) = str_split( $chars, 5 ); $entity = sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', $cdn_url . $char1 . '-' . $char2 . $ext, html_entity_decode( $flag ) ); $content = str_replace( $flag, $entity, $content ); } } } // Loosely match the Emoji Unicode range. $regex = '/(&#x[2-3][0-9a-f]{3};|[1-6][0-9a-f]{2};)/'; $matches = array(); if ( preg_match_all( $regex, $content, $matches ) ) { if ( ! empty( $matches[1] ) ) { foreach ( $matches[1] as $emoji ) { $char = str_replace( array( '&#x', ';'), '', $emoji ); $entity = sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', $cdn_url . $char . $ext, html_entity_decode( $emoji ) ); $content = str_replace( $emoji, $entity, $content ); } } } } // Did we exit ignore block. if ( '' != $ignore_block_element && '</' . $ignore_block_element . '>' == $content ) { $ignore_block_element = ''; } $output .= $content; } return $output; } /** * Convert emoji in emails into static images. * * @since 4.2.0 * * @param array $mail The email data array. * @return array The email data array, with emoji in the message staticized. */ function wp_staticize_emoji_for_email( $mail ) { if ( ! isset( $mail['message'] ) ) { return $mail; } /* * We can only transform the emoji into images if it's a text/html email. * To do that, here's a cut down version of the same process that happens * in wp_mail() - get the Content-Type from the headers, if there is one, * then pass it through the wp_mail_content_type filter, in case a plugin * is handling changing the Content-Type. */ $headers = array(); if ( isset( $mail['headers'] ) ) { if ( is_array( $mail['headers'] ) ) { $headers = $mail['headers']; } else { $headers = explode( "\n", str_replace( "\r\n", "\n", $mail['headers'] ) ); } } foreach ( $headers as $header ) { if ( strpos($header, ':') === false ) { continue; } // Explode them out. list( $name, $content ) = explode( ':', trim( $header ), 2 ); // Cleanup crew. $name = trim( $name ); $content = trim( $content ); if ( 'content-type' === strtolower( $name ) ) { if ( strpos( $content, ';' ) !== false ) { list( $type, $charset ) = explode( ';', $content ); $content_type = trim( $type ); } else { $content_type = trim( $content ); } break; } } // Set Content-Type if we don't have a content-type from the input headers. if ( ! isset( $content_type ) ) { $content_type = 'text/plain'; } /** This filter is documented in wp-includes/pluggable.php */ $content_type = apply_filters( 'wp_mail_content_type', $content_type ); if ( 'text/html' === $content_type ) { $mail['message'] = wp_staticize_emoji( $mail['message'] ); } return $mail; } /** * Shorten a URL, to be used as link text. * * @since 1.2.0 * @since 4.4.0 Moved to wp-includes/formatting.php from wp-admin/includes/misc.php and added $length param. * * @param string $url URL to shorten. * @param int $length Optional. Maximum length of the shortened URL. Default 35 characters. * @return string Shortened URL. */ function url_shorten( $url, $length = 35 ) { $stripped = str_replace( array( 'https://', 'http://', 'www.' ), '', $url ); $short_url = untrailingslashit( $stripped ); if ( strlen( $short_url ) > $length ) { $short_url = substr( $short_url, 0, $length - 3 ) . '…'; } return $short_url; } /** * Sanitizes a hex color. * * Returns either '', a 3 or 6 digit hex color (with #), or nothing. * For sanitizing values without a #, see sanitize_hex_color_no_hash(). * * @since 3.4.0 * * @param string $color * @return string|void */ function sanitize_hex_color( $color ) { if ( '' === $color ) { return ''; } // 3 or 6 hex digits, or the empty string. if ( preg_match('|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) ) { return $color; } } /** * Sanitizes a hex color without a hash. Use sanitize_hex_color() when possible. * * Saving hex colors without a hash puts the burden of adding the hash on the * UI, which makes it difficult to use or upgrade to other color types such as * rgba, hsl, rgb, and html color names. * * Returns either '', a 3 or 6 digit hex color (without a #), or null. * * @since 3.4.0 * * @param string $color * @return string|null */ function sanitize_hex_color_no_hash( $color ) { $color = ltrim( $color, '#' ); if ( '' === $color ) { return ''; } return sanitize_hex_color( '#' . $color ) ? $color : null; } /** * Ensures that any hex color is properly hashed. * Otherwise, returns value untouched. * * This method should only be necessary if using sanitize_hex_color_no_hash(). * * @since 3.4.0 * * @param string $color * @return string */ function maybe_hash_hex_color( $color ) { if ( $unhashed = sanitize_hex_color_no_hash( $color ) ) { return '#' . $unhashed; } return $color; }
Save Changes
Rename File
Rename