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Edit File: wpforms.php

<?php
/**
 * Plugin Name: WPForms Lite
 * Plugin URI:  https://wpforms.com
 * Description: Beginner friendly WordPress contact form plugin. Use our Drag & Drop form builder to create your WordPress forms.
 * Author:      WPForms
 * Author URI:  https://wpforms.com
 * Version:     1.6.0.2
 * Text Domain: wpforms-lite
 * Domain Path: languages
 *
 * WPForms is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * any later version.
 *
 * WPForms is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with WPForms. If not, see <http://www.gnu.org/licenses/>.
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

// Plugin version.
if ( ! defined( 'WPFORMS_VERSION' ) ) {
	define( 'WPFORMS_VERSION', '1.6.0.2' );
}

// Plugin Folder Path.
if ( ! defined( 'WPFORMS_PLUGIN_DIR' ) ) {
	define( 'WPFORMS_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
}

// Plugin Folder URL.
if ( ! defined( 'WPFORMS_PLUGIN_URL' ) ) {
	define( 'WPFORMS_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
}

// Plugin Root File.
if ( ! defined( 'WPFORMS_PLUGIN_FILE' ) ) {
	define( 'WPFORMS_PLUGIN_FILE', __FILE__ );
}

// Don't allow multiple versions to be active.
if ( function_exists( 'wpforms' ) ) {

if ( ! function_exists( 'wpforms_lite_just_activated' ) ) {
		/**
		 * Store temporarily that the Lite version of the plugin was activated.
		 * This is needed because WP does a redirect after activation and
		 * we need to preserve this state to know whether user activated Lite or not.
		 *
		 * @since 1.5.8
		 */
		function wpforms_lite_just_activated() {

set_transient( 'wpforms_lite_just_activated', true );
		}
	}
	add_action( 'activate_wpforms-lite/wpforms.php', 'wpforms_lite_just_activated' );

if ( ! function_exists( 'wpforms_lite_just_deactivated' ) ) {
		/**
		 * Store temporarily that Lite plugin was deactivated.
		 * Convert temporary "activated" value to a global variable,
		 * so it is available through the request. Remove from the storage.
		 *
		 * @since 1.5.8
		 */
		function wpforms_lite_just_deactivated() {

global $wpforms_lite_just_activated, $wpforms_lite_just_deactivated;

$wpforms_lite_just_activated   = (bool) get_transient( 'wpforms_lite_just_activated' );
			$wpforms_lite_just_deactivated = true;

delete_transient( 'wpforms_lite_just_activated' );
		}
	}
	add_action( 'deactivate_wpforms-lite/wpforms.php', 'wpforms_lite_just_deactivated' );

if ( ! function_exists( 'wpforms_deactivate' ) ) {
		/**
		 * Deactivate Lite if WPForms already activated.
		 *
		 * @since 1.0.0
		 */
		function wpforms_deactivate() {
			deactivate_plugins( 'wpforms-lite/wpforms.php' );
		}
	}
	add_action( 'admin_init', 'wpforms_deactivate' );

if ( ! function_exists( 'wpforms_lite_notice' ) ) {
		/**
		 * Display the notice after deactivation when Pro is still active
		 * and user wanted to activate the Lite version of the plugin.
		 *
		 * @since 1.0.0
		 */
		function wpforms_lite_notice() {

global $wpforms_lite_just_activated, $wpforms_lite_just_deactivated;

if (
				empty( $wpforms_lite_just_activated ) ||
				empty( $wpforms_lite_just_deactivated )
			) {
				return;
			}

// Currently tried to activate Lite with Pro still active, so display the message.
			printf(
				'<div class="notice notice-warning">
					<p>%1$s</p>
					<p>%2$s</p>
				</div>',
				esc_html__( 'Heads up!', 'wpforms-lite' ),
				esc_html__( 'Your site already has WPForms Pro activated. If you want to switch to WPForms Lite, please first go to Plugins > Installed Plugins and deactivate WPForms. Then, you can activate WPForms Lite.', 'wpforms-lite' )
			);

if ( isset( $_GET['activate'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
				unset( $_GET['activate'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			}

unset( $wpforms_lite_just_activated, $wpforms_lite_just_deactivated );
		}
	}
	add_action( 'admin_notices', 'wpforms_lite_notice' );

// Do not process the plugin code further.
	return;
}

// We require PHP 5.5+ for the whole plugin to work.
if ( version_compare( phpversion(), '5.5', '<' ) ) {

if ( ! function_exists( 'wpforms_php52_notice' ) ) {
		/**
		 * Display the notice after deactivation.
		 *
		 * @since 1.5.0
		 */
		function wpforms_php52_notice() {
			?>
			<div class="notice notice-error">
				<p>
					<?php
					printf(
						wp_kses(
							/* translators: %s - WPBeginner URL for recommended WordPress hosting. */
							__( 'Your site is running an <strong>insecure version</strong> of PHP that is no longer supported. Please contact your web hosting provider to update your PHP version or switch to a <a href="%s" target="_blank" rel="noopener noreferrer">recommended WordPress hosting company</a>.', 'wpforms-lite' ),
							array(
								'a'      => array(
									'href'   => array(),
									'target' => array(),
									'rel'    => array(),
								),
								'strong' => array(),
							)
						),
						'https://www.wpbeginner.com/wordpress-hosting/'
					);
					?>
					<br><br>
					<?php
					printf(
						wp_kses(
							/* translators: %s - WPForms.com URL for documentation with more details. */
							__( '<strong>Note:</strong> WPForms plugin is disabled on your site until you fix the issue. <a href="%s" target="_blank" rel="noopener noreferrer">Read more for additional information.</a>', 'wpforms-lite' ),
							array(
								'a'      => array(
									'href'   => array(),
									'target' => array(),
									'rel'    => array(),
								),
								'strong' => array(),
							)
						),
						'https://wpforms.com/docs/supported-php-version/'
					);
					?>
				</p>
			</div>

<?php
			// In case this is on plugin activation.
			if ( isset( $_GET['activate'] ) ) { //phpcs:ignore
				unset( $_GET['activate'] );
			}
		}
	}
	add_action( 'admin_notices', 'wpforms_php52_notice' );

// Do not process the plugin code further.
	return;
}

// Define the class and the function.
require_once dirname( __FILE__ ) . '/src/WPForms.php';

wpforms();

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