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Edit File: class-wp_user_option.php

<?php
/**
 * TablePress WP User Option Wrapper class for WordPress Options
 *
 * Wraps the WordPress Options API, so that (especially) arrays are stored as JSON, instead of being serialized by PHP.
 *
 * @package TablePress
 * @subpackage Classes
 * @author Tobias Bäthge
 * @since 1.0.0
 */

// Prohibit direct script loading.
defined( 'ABSPATH' ) || die( 'No direct script access allowed!' );

// Load parent class.
TablePress::load_file( 'class-wp_option.php', 'classes' );

/**
 * TablePress WP User Option Wrapper class
 *
 * @package TablePress
 * @subpackage Classes
 * @author Tobias Bäthge
 * @since 1.0.0
 */
class TablePress_WP_User_Option extends TablePress_WP_Option {

/**
	 * Get the value of a WP User Option with the WP User Options API.
	 *
	 * @since 1.0.0
	 *
	 * @param string $option_name   Name of the WP User Option.
	 * @param mixed  $default_value Default value of the WP User Option.
	 * @return mixed Current value of the WP User Option, or $default_value if it does not exist.
	 */
	#[\Override]
	protected function _get_option( string $option_name, /* string|int|float|bool|array|null */ $default_value ) /* : string|int|float|bool|array|null */ {
		// Non-logged-in user can never have a saved option value.
		if ( ! is_user_logged_in() ) {
			return $default_value;
		}

$option_value = get_user_option( $option_name );
		// get_user_option() only knows false as the default value, so we have to wrap that.
		if ( false === $option_value ) {
			$option_value = $default_value;
		}
		return $option_value;
	}

/**
	 * Update the value of a WP User Option with the WP User Options API.
	 *
	 * @since 1.0.0
	 *
	 * @param string $option_name Name of the WP User Option.
	 * @param string $new_value   New value of the WP User Option (not slashed).
	 * @return bool True on success, false on failure.
	 */
	#[\Override]
	protected function _update_option( string $option_name, string $new_value ): bool {
		// Non-logged-in user can never have a saved option value to be updated.
		if ( ! is_user_logged_in() ) {
			return false;
		}

// WP expects a slashed value.
		$new_value = wp_slash( $new_value );
		return (bool) update_user_option( get_current_user_id(), $option_name, $new_value, false );
	}

/**
	 * Delete a WP User Option with the WP User Options API.
	 *
	 * @since 1.0.0
	 *
	 * @param string $option_name Name of the WP User Option.
	 * @return bool True on success, false on failure.
	 */
	#[\Override]
	protected function _delete_option( string $option_name ): bool {
		// Non-logged-in user can never have a saved option value to be deleted.
		if ( ! is_user_logged_in() ) {
			return false;
		}

return delete_user_option( get_current_user_id(), $option_name, false );
	}

/**
	 * Delete a WP User Option with the WP User Options API, for all users of the site.
	 *
	 * @since 1.0.0
	 */
	public function delete_for_all_users(): void {
		$users = get_users();
		foreach ( $users as $user ) {
			delete_user_option( $user->ID, $this->option_name, false );
		}
	}

} // class TablePress_WP_User_Option

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