The Lost Era - Archaeology News & Ancient History

Telegram iComsium Current root: /home/mukeshgusaiana/thelostera/public_html/wp-content/themes/generatepress
Current path: /home/mukeshgusaiana/thelostera/public_html/wp-content/themes/generatepress

Dosya Düzenle: plugin.php

<?php
/**
 * WordPress Plugin Administration API
 *
 * @package WordPress
 * @subpackage Administration
 */

/**
 * Parses the plugin contents to retrieve plugin's metadata.
 *
 * All plugin headers must be on their own line. Plugin description must not have
 * any newlines, otherwise only parts of the description will be displayed.
 * The below is formatted for printing.
 *
 *     /*
 *     Plugin Name: Name of the plugin.
 *     Plugin URI: The home page of the plugin.
 *     Description: Plugin description.
 *     Author: Plugin author's name.
 *     Author URI: Link to the author's website.
 *     Version: Plugin version.
 *     Text Domain: Optional. Unique identifier, should be same as the one used in
 *          load_plugin_textdomain().
 *     Domain Path: Optional. Only useful if the translations are located in a
 *          folder above the plugin's base path. For example, if .mo files are
 *          located in the locale folder then Domain Path will be "/locale/" and
 *          must have the first slash. Defaults to the base folder the plugin is
 *          located in.
 *     Network: Optional. Specify "Network: true" to require that a plugin is activated
 *          across all sites in an installation. This will prevent a plugin from being
 *          activated on a single site when Multisite is enabled.
 *     Requires at least: Optional. Specify the minimum required WordPress version.
 *     Requires PHP: Optional. Specify the minimum required PHP version.
 *     * / # Remove the space to close comment.
 *
 * The first 8 KB of the file will be pulled in and if the plugin data is not
 * within that first 8 KB, then the plugin author should correct their plugin
 * and move the plugin data headers to the top.
 *
 * The plugin file is assumed to have permissions to allow for scripts to read
 * the file. This is not checked however and the file is only opened for
 * reading.
 *
 * @since 1.5.0
 * @since 5.3.0 Added support for `Requires at least` and `Requires PHP` headers.
 * @since 5.8.0 Added support for `Update URI` header.
 * @since 6.5.0 Added support for `Requires Plugins` header.
 *
 * @param string $plugin_file Absolute path to the main plugin file.
 * @param bool   $markup      Optional. If the returned data should have HTML markup applied.
 *                            Default true.
 * @param bool   $translate   Optional. If the returned data should be translated. Default true.
 * @return array {
 *     Plugin data. Values will be empty if not supplied by the plugin.
 *
 *     @type string $Name            Name of the plugin. Should be unique.
 *     @type string $PluginURI       Plugin URI.
 *     @type string $Version         Plugin version.
 *     @type string $Description     Plugin description.
 *     @type string $Author          Plugin author's name.
 *     @type string $AuthorURI       Plugin author's website address (if set).
 *     @type string $TextDomain      Plugin textdomain.
 *     @type string $DomainPath      Plugin's relative directory path to .mo files.
 *     @type bool   $Network         Whether the plugin can only be activated network-wide.
 *     @type string $RequiresWP      Minimum required version of WordPress.
 *     @type string $RequiresPHP     Minimum required version of PHP.
 *     @type string $UpdateURI       ID of the plugin for update purposes, should be a URI.
 *     @type string $RequiresPlugins Comma separated list of dot org plugin slugs.
 *     @type string $Title           Title of the plugin and link to the plugin's site (if set).
 *     @type string $AuthorName      Plugin author's name.
 * }
 */
function get_plugin_data( $plugin_file, $markup = true, $translate = true ) {

$default_headers = array(
		'Name'            => 'Plugin Name',
		'PluginURI'       => 'Plugin URI',
		'Version'         => 'Version',
		'Description'     => 'Description',
		'Author'          => 'Author',
		'AuthorURI'       => 'Author URI',
		'TextDomain'      => 'Text Domain',
		'DomainPath'      => 'Domain Path',
		'Network'         => 'Network',
		'RequiresWP'      => 'Requires at least',
		'RequiresPHP'     => 'Requires PHP',
		'UpdateURI'       => 'Update URI',
		'RequiresPlugins' => 'Requires Plugins',
		// Site Wide Only is deprecated in favor of Network.
		'_sitewide'       => 'Site Wide Only',
	);

$plugin_data = get_file_data( $plugin_file, $default_headers, 'plugin' );

// Site Wide Only is the old header for Network.
	if ( ! $plugin_data['Network'] && $plugin_data['_sitewide'] ) {
		/* translators: 1: Site Wide Only: true, 2: Network: true */
		_deprecated_argument( __FUNCTION__, '3.0.0', sprintf( __( 'The %1$s plugin header is deprecated. Use %2$s instead.' ), '<code>Site Wide Only: true</code>', '<code>Network: true</code>' ) );
		$plugin_data['Network'] = $plugin_data['_sitewide'];
	}
	$plugin_data['Network'] = ( 'true' === strtolower( $plugin_data['Network'] ) );
	unset( $plugin_data['_sitewide'] );

// If no text domain is defined fall back to the plugin slug.
	if ( ! $plugin_data['TextDomain'] ) {
		$plugin_slug = dirname( plugin_basename( $plugin_file ) );
		if ( '.' !== $plugin_slug && ! str_contains( $plugin_slug, '/' ) ) {
			$plugin_data['TextDomain'] = $plugin_slug;
		}
	}

if ( $markup || $translate ) {
		$plugin_data = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup, $translate );
	} else {
		$plugin_data['Title']      = $plugin_data['Name'];
		$plugin_data['AuthorName'] = $plugin_data['Author'];
	}

return $plugin_data;
}

/**
 * Sanitizes plugin data, optionally adds markup, optionally translates.
 *
 * @since 2.7.0
 *
 * @see get_plugin_data()
 *
 * @access private
 *
 * @param string $plugin_file Path to the main plugin file.
 * @param array  $plugin_data An array of plugin data. See get_plugin_data().
 * @param bool   $markup      Optional. If the returned data should have HTML markup applied.
 *                            Default true.
 * @param bool   $translate   Optional. If the returned data should be translated. Default true.
 * @return array Plugin data. Values will be empty if not supplied by the plugin.
 *               See get_plugin_data() for the list of possible values.
 */
function _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup = true, $translate = true ) {

// Sanitize the plugin filename to a WP_PLUGIN_DIR relative path.
	$plugin_file = plugin_basename( $plugin_file );

// Translate fields.
	if ( $translate ) {
		$textdomain = $plugin_data['TextDomain'];
		if ( $textdomain ) {
			if ( ! is_textdomain_loaded( $textdomain ) ) {
				if ( $plugin_data['DomainPath'] ) {
					load_plugin_textdomain( $textdomain, false, dirname( $plugin_file ) . $plugin_data['DomainPath'] );
				} else {
					load_plugin_textdomain( $textdomain, false, dirname( $plugin_file ) );
				}
			}
		} elseif ( 'hello.php' === basename( $plugin_file ) ) {
			$textdomain = 'default';
		}
		if ( $textdomain ) {
			foreach ( array( 'Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version' ) as $field ) {
				if ( ! empty( $plugin_data[ $field ] ) ) {
					// phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText,WordPress.WP.I18n.NonSingularStringLiteralDomain
					$plugin_data[ $field ] = translate( $plugin_data[ $field ], $textdomain );
				}
			}
		}
	}

// Sanitize fields.
	$allowed_tags_in_links = array(
		'abbr'    => array( 'title' => true ),
		'acronym' => array( 'title' => true ),
		'code'    => true,
		'em'      => true,
		'strong'  => true,
	);

$allowed_tags      = $allowed_tags_in_links;
	$allowed_tags['a'] = array(
		'href'  => true,
		'title' => true,
	);

/*
	 * Name is marked up inside <a> tags. Don't allow these.
	 * Author is too, but some plugins have used <a> here (omitting Author URI).
	 */
	$plugin_data['Name'] = wp_kses( $plugin_data['Name'], $allowed_tags_in_links );
	$plugin_data['Author'] = wp_kses( $plugin_data['Author'], $allowed_tags );

$plugin_data['Description'] = wp_kses( $plugin_data['Description'], $allowed_tags );
	$plugin_data['Version']     = wp_kses( $plugin_data['Version'], $allowed_tags );

$plugin_data['PluginURI'] = esc_url( $plugin_data['PluginURI'] );
	$plugin_data['AuthorURI'] = esc_url( $plugin_data['AuthorURI'] );

$plugin_data['Title']      = $plugin_data['Name'];
	$plugin_data['AuthorName'] = $plugin_data['Author'];

// Apply markup.
	if ( $markup ) {
		if ( $plugin_data['PluginURI'] && $plugin_data['Name'] ) {
			$plugin_data['Title'] = '<a href="' . $plugin_data['PluginURI'] . '">' . $plugin_data['Name'] . '</a>';
		}

if ( $plugin_data['AuthorURI'] && $plugin_data['Author'] ) {
			$plugin_data['Author'] = '<a href="' . $plugin_data['AuthorURI'] . '">' . $plugin_data['Author'] . '</a>';
		}

$plugin_data['Description'] = wptexturize( $plugin_data['Description'] );

if ( $plugin_data['Author'] ) {
			$plugin_data['Description'] .= sprintf(
				/* translators: %s: Plugin author. */
				' <cite>' . __( 'By %s.' ) . '</cite>',
				$plugin_data['Author']
			);
		}
	}

return $plugin_data;
}

/**
 * Gets a list of a plugin's files.
 *
 * @since 2.8.0
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return string[] Array of file names relative to the plugin root.
 */
function get_plugin_files( $plugin ) {
	$plugin_file = WP_PLUGIN_DIR . '/' . $plugin;
	$dir         = dirname( $plugin_file );

$plugin_files = array( plugin_basename( $plugin_file ) );

if ( is_dir( $dir ) && WP_PLUGIN_DIR !== $dir ) {

/**
		 * Filters the array of excluded directories and files while scanning the folder.
		 *
		 * @since 4.9.0
		 *
		 * @param string[] $exclusions Array of excluded directories and files.
		 */
		$exclusions = (array) apply_filters( 'plugin_files_exclusions', array( 'CVS', 'node_modules', 'vendor', 'bower_components' ) );

$list_files = list_files( $dir, 100, $exclusions );
		$list_files = array_map( 'plugin_basename', $list_files );

$plugin_files = array_merge( $plugin_files, $list_files );
		$plugin_files = array_values( array_unique( $plugin_files ) );
	}

return $plugin_files;
}

/**
 * Checks the plugins directory and retrieve all plugin files with plugin data.
 *
 * WordPress only supports plugin files in the base plugins directory
 * (wp-content/plugins) and in one directory above the plugins directory
 * (wp-content/plugins/my-plugin). The file it looks for has the plugin data
 * and must be found in those two locations. It is recommended to keep your
 * plugin files in their own directories.
 *
 * The file with the plugin data is the file that will be included and therefore
 * needs to have the main execution for the plugin. This does not mean
 * everything must be contained in the file and it is recommended that the file
 * be split for maintainability. Keep everything in one file for extreme
 * optimization purposes.
 *
 * @since 1.5.0
 *
 * @param string $plugin_folder Optional. Relative path to single plugin folder.
 * @return array[] Array of arrays of plugin data, keyed by plugin file name. See get_plugin_data().
 */
function get_plugins( $plugin_folder = '' ) {

$cache_plugins = wp_cache_get( 'plugins', 'plugins' );
	if ( ! $cache_plugins ) {
		$cache_plugins = array();
	}

if ( isset( $cache_plugins[ $plugin_folder ] ) ) {
		return $cache_plugins[ $plugin_folder ];
	}

$wp_plugins  = array();
	$plugin_root = WP_PLUGIN_DIR;
	if ( ! empty( $plugin_folder ) ) {
		$plugin_root .= $plugin_folder;
	}

// Files in wp-content/plugins directory.
	$plugins_dir  = @opendir( $plugin_root );
	$plugin_files = array();

if ( $plugins_dir ) {
		while ( ( $file = readdir( $plugins_dir ) ) !== false ) {
			if ( str_starts_with( $file, '.' ) ) {
				continue;
			}

if ( is_dir( $plugin_root . '/' . $file ) ) {
				$plugins_subdir = @opendir( $plugin_root . '/' . $file );

if ( $plugins_subdir ) {
					while ( ( $subfile = readdir( $plugins_subdir ) ) !== false ) {
						if ( str_starts_with( $subfile, '.' ) ) {
							continue;
						}

if ( str_ends_with( $subfile, '.php' ) ) {
							$plugin_files[] = "$file/$subfile";
						}
					}

closedir( $plugins_subdir );
				}
			} elseif ( str_ends_with( $file, '.php' ) ) {
				$plugin_files[] = $file;
			}
		}

closedir( $plugins_dir );
	}

if ( empty( $plugin_files ) ) {
		return $wp_plugins;
	}

foreach ( $plugin_files as $plugin_file ) {
		if ( ! is_readable( "$plugin_root/$plugin_file" ) ) {
			continue;
		}

// Do not apply markup/translate as it will be cached.
		$plugin_data = get_plugin_data( "$plugin_root/$plugin_file", false, false );

if ( empty( $plugin_data['Name'] ) ) {
			continue;
		}

$wp_plugins[ plugin_basename( $plugin_file ) ] = $plugin_data;
	}

uasort( $wp_plugins, '_sort_uname_callback' );

$cache_plugins[ $plugin_folder ] = $wp_plugins;
	wp_cache_set( 'plugins', $cache_plugins, 'plugins' );

return $wp_plugins;
}

/**
 * Checks the mu-plugins directory and retrieve all mu-plugin files with any plugin data.
 *
 * WordPress only includes mu-plugin files in the base mu-plugins directory (wp-content/mu-plugins).
 *
 * @since 3.0.0
 * @return array[] Array of arrays of mu-plugin data, keyed by plugin file name. See get_plugin_data().
 */
function get_mu_plugins() {
	$wp_plugins   = array();
	$plugin_files = array();

if ( ! is_dir( WPMU_PLUGIN_DIR ) ) {
		return $wp_plugins;
	}

// Files in wp-content/mu-plugins directory.
	$plugins_dir = @opendir( WPMU_PLUGIN_DIR );
	if ( $plugins_dir ) {
		while ( ( $file = readdir( $plugins_dir ) ) !== false ) {
			if ( str_ends_with( $file, '.php' ) ) {
				$plugin_files[] = $file;
			}
		}
	} else {
		return $wp_plugins;
	}

closedir( $plugins_dir );

if ( empty( $plugin_files ) ) {
		return $wp_plugins;
	}

foreach ( $plugin_files as $plugin_file ) {
		if ( ! is_readable( WPMU_PLUGIN_DIR . "/$plugin_file" ) ) {
			continue;
		}

// Do not apply markup/translate as it will be cached.
		$plugin_data = get_plugin_data( WPMU_PLUGIN_DIR . "/$plugin_file", false, false );

if ( empty( $plugin_data['Name'] ) ) {
			$plugin_data['Name'] = $plugin_file;
		}

$wp_plugins[ $plugin_file ] = $plugin_data;
	}

if ( isset( $wp_plugins['index.php'] ) && filesize( WPMU_PLUGIN_DIR . '/index.php' ) <= 30 ) {
		// Silence is golden.
		unset( $wp_plugins['index.php'] );
	}

uasort( $wp_plugins, '_sort_uname_callback' );

return $wp_plugins;
}

/**
 * Declares a callback to sort array by a 'Name' key.
 *
 * @since 3.1.0
 *
 * @access private
 *
 * @param array $a array with 'Name' key.
 * @param array $b array with 'Name' key.
 * @return int Return 0 or 1 based on two string comparison.
 */
function _sort_uname_callback( $a, $b ) {
	return strnatcasecmp( $a['Name'], $b['Name'] );
}

/**
 * Checks the wp-content directory and retrieve all drop-ins with any plugin data.
 *
 * @since 3.0.0
 * @return array[] Array of arrays of dropin plugin data, keyed by plugin file name. See get_plugin_data().
 */
function get_dropins() {
	$dropins      = array();
	$plugin_files = array();

$_dropins = _get_dropins();

// Files in wp-content directory.
	$plugins_dir = @opendir( WP_CONTENT_DIR );
	if ( $plugins_dir ) {
		while ( ( $file = readdir( $plugins_dir ) ) !== false ) {
			if ( isset( $_dropins[ $file ] ) ) {
				$plugin_files[] = $file;
			}
		}
	} else {
		return $dropins;
	}

closedir( $plugins_dir );

if ( empty( $plugin_files ) ) {
		return $dropins;
	}

foreach ( $plugin_files as $plugin_file ) {
		if ( ! is_readable( WP_CONTENT_DIR . "/$plugin_file" ) ) {
			continue;
		}

// Do not apply markup/translate as it will be cached.
		$plugin_data = get_plugin_data( WP_CONTENT_DIR . "/$plugin_file", false, false );

if ( empty( $plugin_data['Name'] ) ) {
			$plugin_data['Name'] = $plugin_file;
		}

$dropins[ $plugin_file ] = $plugin_data;
	}

uksort( $dropins, 'strnatcasecmp' );

return $dropins;
}

/**
 * Returns drop-in plugins that WordPress uses.
 *
 * Includes Multisite drop-ins only when is_multisite()
 *
 * @since 3.0.0
 *
 * @return array[] {
 *     Key is file name. The value is an array of data about the drop-in.
 *
 *     @type array ...$0 {
 *         Data about the drop-in.
 *
 *         @type string      $0 The purpose of the drop-in.
 *         @type string|true $1 Name of the constant that must be true for the drop-in
 *                              to be used, or true if no constant is required.
 *     }
 * }
 */
function _get_dropins() {
	$dropins = array(
		'advanced-cache.php'      => array( __( 'Advanced caching plugin.' ), 'WP_CACHE' ),  // WP_CACHE
		'db.php'                  => array( __( 'Custom database class.' ), true ),          // Auto on load.
		'db-error.php'            => array( __( 'Custom database error message.' ), true ),  // Auto on error.
		'install.php'             => array( __( 'Custom installation script.' ), true ),     // Auto on installation.
		'maintenance.php'         => array( __( 'Custom maintenance message.' ), true ),     // Auto on maintenance.
		'object-cache.php'        => array( __( 'External object cache.' ), true ),          // Auto on load.
		'php-error.php'           => array( __( 'Custom PHP error message.' ), true ),       // Auto on error.
		'fatal-error-handler.php' => array( __( 'Custom PHP fatal error handler.' ), true ), // Auto on error.
	);

if ( is_multisite() ) {
		$dropins['sunrise.php']        = array( __( 'Executed before Multisite is loaded.' ), 'SUNRISE' ); // SUNRISE
		$dropins['blog-deleted.php']   = array( __( 'Custom site deleted message.' ), true );   // Auto on deleted blog.
		$dropins['blog-inactive.php']  = array( __( 'Custom site inactive message.' ), true );  // Auto on inactive blog.
		$dropins['blog-suspended.php'] = array( __( 'Custom site suspended message.' ), true ); // Auto on archived or spammed blog.
	}

return $dropins;
}

/**
 * Determines whether a plugin is active.
 *
 * Only plugins installed in the plugins/ folder can be active.
 *
 * Plugins in the mu-plugins/ folder can't be "activated," so this function will
 * return false for those plugins.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 2.5.0
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return bool True, if in the active plugins list. False, not in the list.
 */
function is_plugin_active( $plugin ) {
	return in_array( $plugin, (array) get_option( 'active_plugins', array() ), true ) || is_plugin_active_for_network( $plugin );
}

/**
 * Determines whether the plugin is inactive.
 *
 * Reverse of is_plugin_active(). Used as a callback.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 3.1.0
 *
 * @see is_plugin_active()
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return bool True if inactive. False if active.
 */
function is_plugin_inactive( $plugin ) {
	return ! is_plugin_active( $plugin );
}

/**
 * Determines whether the plugin is active for the entire network.
 *
 * Only plugins installed in the plugins/ folder can be active.
 *
 * Plugins in the mu-plugins/ folder can't be "activated," so this function will
 * return false for those plugins.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 3.0.0
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return bool True if active for the network, otherwise false.
 */
function is_plugin_active_for_network( $plugin ) {
	if ( ! is_multisite() ) {
		return false;
	}

$plugins = get_site_option( 'active_sitewide_plugins' );
	if ( isset( $plugins[ $plugin ] ) ) {
		return true;
	}

return false;
}

/**
 * Checks for "Network: true" in the plugin header to see if this should
 * be activated only as a network wide plugin. The plugin would also work
 * when Multisite is not enabled.
 *
 * Checks for "Site Wide Only: true" for backward compatibility.
 *
 * @since 3.0.0
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return bool True if plugin is network only, false otherwise.
 */
function is_network_only_plugin( $plugin ) {
	$plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );
	if ( $plugin_data ) {
		return $plugin_data['Network'];
	}
	return false;
}

/**
 * Attempts activation of plugin in a "sandbox" and redirects on success.
 *
 * A plugin that is already activated will not attempt to be activated again.
 *
 * The way it works is by setting the redirection to the error before trying to
 * include the plugin file. If the plugin fails, then the redirection will not
 * be overwritten with the success message. Also, the options will not be
 * updated and the activation hook will not be called on plugin error.
 *
 * It should be noted that in no way the below code will actually prevent errors
 * within the file. The code should not be used elsewhere to replicate the
 * "sandbox", which uses redirection to work.
 * {@source 13 1}
 *
 * If any errors are found or text is outputted, then it will be captured to
 * ensure that the success redirection will update the error redirection.
 *
 * @since 2.5.0
 * @since 5.2.0 Test for WordPress version and PHP version compatibility.
 *
 * @param string $plugin       Path to the plugin file relative to the plugins directory.
 * @param string $redirect     Optional. URL to redirect to.
 * @param bool   $network_wide Optional. Whether to enable the plugin for all sites in the network
 *                             or just the current site. Multisite only. Default false.
 * @param bool   $silent       Optional. Whether to prevent calling activation hooks. Default false.
 * @return null|WP_Error Null on success, WP_Error on invalid file.
 */
function activate_plugin( $plugin, $redirect = '', $network_wide = false, $silent = false ) {
	$plugin = plugin_basename( trim( $plugin ) );

if ( is_multisite() && ( $network_wide || is_network_only_plugin( $plugin ) ) ) {
		$network_wide        = true;
		$current             = get_site_option( 'active_sitewide_plugins', array() );
		$_GET['networkwide'] = 1; // Back compat for plugins looking for this value.
	} else {
		$current = get_option( 'active_plugins', array() );
	}

$valid = validate_plugin( $plugin );
	if ( is_wp_error( $valid ) ) {
		return $valid;
	}

$requirements = validate_plugin_requirements( $plugin );
	if ( is_wp_error( $requirements ) ) {
		return $requirements;
	}

if ( $network_wide && ! isset( $current[ $plugin ] )
		|| ! $network_wide && ! in_array( $plugin, $current, true )
	) {
		if ( ! empty( $redirect ) ) {
			// We'll override this later if the plugin can be included without fatal error.
			wp_redirect( add_query_arg( '_error_nonce', wp_create_nonce( 'plugin-activation-error_' . $plugin ), $redirect ) );
		}

ob_start();

// Load the plugin to test whether it throws any errors.
		plugin_sandbox_scrape( $plugin );

if ( ! $silent ) {
			/**
			 * Fires before a plugin is activated.
			 *
			 * If a plugin is silently activated (such as during an update),
			 * this hook does not fire.
			 *
			 * @since 2.9.0
			 *
			 * @param string $plugin       Path to the plugin file relative to the plugins directory.
			 * @param bool   $network_wide Whether to enable the plugin for all sites in the network
			 *                             or just the current site. Multisite only. Default false.
			 */
			do_action( 'activate_plugin', $plugin, $network_wide );

/**
			 * Fires as a specific plugin is being activated.
			 *
			 * This hook is the "activation" hook used internally by register_activation_hook().
			 * The dynamic portion of the hook name, `$plugin`, refers to the plugin basename.
			 *
			 * If a plugin is silently activated (such as during an update), this hook does not fire.
			 *
			 * @since 2.0.0
			 *
			 * @param bool $network_wide Whether to enable the plugin for all sites in the network
			 *                           or just the current site. Multisite only. Default false.
			 */
			do_action( "activate_{$plugin}", $network_wide );
		}

if ( $network_wide ) {
			$current            = get_site_option( 'active_sitewide_plugins', array() );
			$current[ $plugin ] = time();
			update_site_option( 'active_sitewide_plugins', $current );
		} else {
			$current   = get_option( 'active_plugins', array() );
			$current[] = $plugin;
			sort( $current );
			update_option( 'active_plugins', $current );
		}

if ( ! $silent ) {
			/**
			 * Fires after a plugin has been activated.
			 *
			 * If a plugin is silently activated (such as during an update),
			 * this hook does not fire.
			 *
			 * @since 2.9.0
			 *
			 * @param string $plugin       Path to the plugin file relative to the plugins directory.
			 * @param bool   $network_wide Whether to enable the plugin for all sites in the network
			 *                             or just the current site. Multisite only. Default false.
			 */
			do_action( 'activated_plugin', $plugin, $network_wide );
		}

if ( ob_get_length() > 0 ) {
			$output = ob_get_clean();
			return new WP_Error( 'unexpected_output', __( 'The plugin generated unexpected output.' ), $output );
		}

ob_end_clean();
	}

return null;
}

/**
 * Deactivates a single plugin or multiple plugins.
 *
 * The deactivation hook is disabled by the plugin upgrader by using the $silent
 * parameter.
 *
 * @since 2.5.0
 *
 * @param string|string[] $plugins      Single plugin or list of plugins to deactivate.
 * @param bool            $silent       Prevent calling deactivation hooks. Default false.
 * @param bool|null       $network_wide Whether to deactivate the plugin for all sites in the network.
 *                                      A value of null will deactivate plugins for both the network
 *                                      and the current site. Multisite only. Default null.
 */
function deactivate_plugins( $plugins, $silent = false, $network_wide = null ) {
	if ( is_multisite() ) {
		$network_current = get_site_option( 'active_sitewide_plugins', array() );
	}
	$current    = get_option( 'active_plugins', array() );
	$do_blog    = false;
	$do_network = false;

foreach ( (array) $plugins as $plugin ) {
		$plugin = plugin_basename( trim( $plugin ) );
		if ( ! is_plugin_active( $plugin ) ) {
			continue;
		}

$network_deactivating = ( false !== $network_wide ) && is_plugin_active_for_network( $plugin );

if ( ! $silent ) {
			/**
			 * Fires before a plugin is deactivated.
			 *
			 * If a plugin is silently deactivated (such as during an update),
			 * this hook does not fire.
			 *
			 * @since 2.9.0
			 *
			 * @param string $plugin               Path to the plugin file relative to the plugins directory.
			 * @param bool   $network_deactivating Whether the plugin is deactivated for all sites in the network
			 *                                     or just the current site. Multisite only. Default false.
			 */
			do_action( 'deactivate_plugin', $plugin, $network_deactivating );
		}

if ( false !== $network_wide ) {
			if ( is_plugin_active_for_network( $plugin ) ) {
				$do_network = true;
				unset( $network_current[ $plugin ] );
			} elseif ( $network_wide ) {
				continue;
			}
		}

if ( true !== $network_wide ) {
			$key = array_search( $plugin, $current, true );
			if ( false !== $key ) {
				$do_blog = true;
				unset( $current[ $key ] );
			}
		}

if ( $do_blog && wp_is_recovery_mode() ) {
			list( $extension ) = explode( '/', $plugin );
			wp_paused_plugins()->delete( $extension );
		}

if ( ! $silent ) {
			/**
			 * Fires as a specific plugin is being deactivated.
			 *
			 * This hook is the "deactivation" hook used internally by register_deactivation_hook().
			 * The dynamic portion of the hook name, `$plugin`, refers to the plugin basename.
			 *
			 * If a plugin is silently deactivated (such as during an update), this hook does not fire.
			 *
			 * @since 2.0.0
			 *
			 * @param bool $network_deactivating Whether the plugin is deactivated for all sites in the network
			 *                                   or just the current site. Multisite only. Default false.
			 */
			do_action( "deactivate_{$plugin}", $network_deactivating );

/**
			 * Fires after a plugin is deactivated.
			 *
			 * If a plugin is silently deactivated (such as during an update),
			 * this hook does not fire.
			 *
			 * @since 2.9.0
			 *
			 * @param string $plugin               Path to the plugin file relative to the plugins directory.
			 * @param bool   $network_deactivating Whether the plugin is deactivated for all sites in the network
			 *                                     or just the current site. Multisite only. Default false.
			 */
			do_action( 'deactivated_plugin', $plugin, $network_deactivating );
		}
	}

if ( $do_blog ) {
		update_option( 'active_plugins', $current );
	}
	if ( $do_network ) {
		update_site_option( 'active_sitewide_plugins', $network_current );
	}
}

/**
 * Activates multiple plugins.
 *
 * When WP_Error is returned, it does not mean that one of the plugins had
 * errors. It means that one or more of the plugin file paths were invalid.
 *
 * The execution will be halted as soon as one of the plugins has an error.
 *
 * @since 2.6.0
 *
 * @param string|string[] $plugins      Single plugin or list of plugins to activate.
 * @param string          $redirect     Redirect to page after successful activation.
 * @param bool            $network_wide Whether to enable the plugin for all sites in the network.
 *                                      Default false.
 * @param bool            $silent       Prevent calling activation hooks. Default false.
 * @return true|WP_Error True when finished or WP_Error if there were errors during a plugin activation.
 */
function activate_plugins( $plugins, $redirect = '', $network_wide = false, $silent = false ) {
	if ( ! is_array( $plugins ) ) {
		$plugins = array( $plugins );
	}

$errors = array();
	foreach ( $plugins as $plugin ) {
		if ( ! empty( $redirect ) ) {
			$redirect = add_query_arg( 'plugin', $plugin, $redirect );
		}
		$result = activate_plugin( $plugin, $redirect, $network_wide, $silent );
		if ( is_wp_error( $result ) ) {
			$errors[ $plugin ] = $result;
		}
	}

if ( ! empty( $errors ) ) {
		return new WP_Error( 'plugins_invalid', __( 'One of the plugins is invalid.' ), $errors );
	}

return true;
}

/**
 * Removes directory and files of a plugin for a list of plugins.
 *
 * @since 2.6.0
 *
 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
 *
 * @param string[] $plugins    List of plugin paths to delete, relative to the plugins directory.
 * @param string   $deprecated Not used.
 * @return bool|null|WP_Error True on success, false if `$plugins` is empty, `WP_Error` on failure.
 *                            `null` if filesystem credentials are required to proceed.
 */
function delete_plugins( $plugins, $deprecated = '' ) {
	global $wp_filesystem;

if ( empty( $plugins ) ) {
		return false;
	}

$checked = array();
	foreach ( $plugins as $plugin ) {
		$checked[] = 'checked[]=' . $plugin;
	}

$url = wp_nonce_url( 'plugins.php?action=delete-selected&verify-delete=1&' . implode( '&', $checked ), 'bulk-plugins' );

ob_start();
	$credentials = request_filesystem_credentials( $url );
	$data        = ob_get_clean();

if ( false === $credentials ) {
		if ( ! empty( $data ) ) {
			require_once ABSPATH . 'wp-admin/admin-header.php';
			echo $data;
			require_once ABSPATH . 'wp-admin/admin-footer.php';
			exit;
		}
		return null;
	}

if ( ! WP_Filesystem( $credentials ) ) {
		ob_start();
		// Failed to connect. Error and request again.
		request_filesystem_credentials( $url, '', true );
		$data = ob_get_clean();

if ( ! empty( $data ) ) {
			require_once ABSPATH . 'wp-admin/admin-header.php';
			echo $data;
			require_once ABSPATH . 'wp-admin/admin-footer.php';
			exit;
		}
		return null;
	}

if ( ! is_object( $wp_filesystem ) ) {
		return new WP_Error( 'fs_unavailable', __( 'Could not access filesystem.' ) );
	}

if ( is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) {
		return new WP_Error( 'fs_error', __( 'Filesystem error.' ), $wp_filesystem->errors );
	}

// Get the base plugin folder.
	$plugins_dir = $wp_filesystem->wp_plugins_dir();
	if ( empty( $plugins_dir ) ) {
		return new WP_Error( 'fs_no_plugins_dir', __( 'Unable to locate WordPress plugin directory.' ) );
	}

$plugins_dir = trailingslashit( $plugins_dir );

$plugin_translations = wp_get_installed_translations( 'plugins' );

$errors = array();

foreach ( $plugins as $plugin_file ) {
		// Run Uninstall hook.
		if ( is_uninstallable_plugin( $plugin_file ) ) {
			uninstall_plugin( $plugin_file );
		}

/**
		 * Fires immediately before a plugin deletion attempt.
		 *
		 * @since 4.4.0
		 *
		 * @param string $plugin_file Path to the plugin file relative to the plugins directory.
		 */
		do_action( 'delete_plugin', $plugin_file );

$this_plugin_dir = trailingslashit( dirname( $plugins_dir . $plugin_file ) );

/*
		 * If plugin is in its own directory, recursively delete the directory.
		 * Base check on if plugin includes directory separator AND that it's not the root plugin folder.
		 */
		if ( strpos( $plugin_file, '/' ) && $this_plugin_dir !== $plugins_dir ) {
			$deleted = $wp_filesystem->delete( $this_plugin_dir, true );
		} else {
			$deleted = $wp_filesystem->delete( $plugins_dir . $plugin_file );
		}

/**
		 * Fires immediately after a plugin deletion attempt.
		 *
		 * @since 4.4.0
		 *
		 * @param string $plugin_file Path to the plugin file relative to the plugins directory.
		 * @param bool   $deleted     Whether the plugin deletion was successful.
		 */
		do_action( 'deleted_plugin', $plugin_file, $deleted );

if ( ! $deleted ) {
			$errors[] = $plugin_file;
			continue;
		}

$plugin_slug = dirname( $plugin_file );

if ( 'hello.php' === $plugin_file ) {
			$plugin_slug = 'hello-dolly';
		}

// Remove language files, silently.
		if ( '.' !== $plugin_slug && ! empty( $plugin_translations[ $plugin_slug ] ) ) {
			$translations = $plugin_translations[ $plugin_slug ];

foreach ( $translations as $translation => $data ) {
				$wp_filesystem->delete( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '.po' );
				$wp_filesystem->delete( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '.mo' );
				$wp_filesystem->delete( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '.l10n.php' );

$json_translation_files = glob( WP_LANG_DIR . '/plugins/' . $plugin_slug . '-' . $translation . '-*.json' );
				if ( $json_translation_files ) {
					array_map( array( $wp_filesystem, 'delete' ), $json_translation_files );
				}
			}
		}
	}

// Remove deleted plugins from the plugin updates list.
	$current = get_site_transient( 'update_plugins' );
	if ( $current ) {
		// Don't remove the plugins that weren't deleted.
		$deleted = array_diff( $plugins, $errors );

foreach ( $deleted as $plugin_file ) {
			unset( $current->response[ $plugin_file ] );
		}

set_site_transient( 'update_plugins', $current );
	}

if ( ! empty( $errors ) ) {
		if ( 1 === count( $errors ) ) {
			/* translators: %s: Plugin filename. */
			$message = __( 'Could not fully remove the plugin %s.' );
		} else {
			/* translators: %s: Comma-separated list of plugin filenames. */
			$message = __( 'Could not fully remove the plugins %s.' );
		}

return new WP_Error( 'could_not_remove_plugin', sprintf( $message, implode( ', ', $errors ) ) );
	}

return true;
}

/**
 * Validates active plugins.
 *
 * Validate all active plugins, deactivates invalid and
 * returns an array of deactivated ones.
 *
 * @since 2.5.0
 * @return WP_Error[] Array of plugin errors keyed by plugin file name.
 */
function validate_active_plugins() {
	$plugins = get_option( 'active_plugins', array() );
	// Validate vartype: array.
	if ( ! is_array( $plugins ) ) {
		update_option( 'active_plugins', array() );
		$plugins = array();
	}

if ( is_multisite() && current_user_can( 'manage_network_plugins' ) ) {
		$network_plugins = (array) get_site_option( 'active_sitewide_plugins', array() );
		$plugins         = array_merge( $plugins, array_keys( $network_plugins ) );
	}

if ( empty( $plugins ) ) {
		return array();
	}

$invalid = array();

// Invalid plugins get deactivated.
	foreach ( $plugins as $plugin ) {
		$result = validate_plugin( $plugin );
		if ( is_wp_error( $result ) ) {
			$invalid[ $plugin ] = $result;
			deactivate_plugins( $plugin, true );
		}
	}
	return $invalid;
}

/**
 * Validates the plugin path.
 *
 * Checks that the main plugin file exists and is a valid plugin. See validate_file().
 *
 * @since 2.5.0
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return int|WP_Error 0 on success, WP_Error on failure.
 */
function validate_plugin( $plugin ) {
	if ( validate_file( $plugin ) ) {
		return new WP_Error( 'plugin_invalid', __( 'Invalid plugin path.' ) );
	}
	if ( ! file_exists( WP_PLUGIN_DIR . '/' . $plugin ) ) {
		return new WP_Error( 'plugin_not_found', __( 'Plugin file does not exist.' ) );
	}

$installed_plugins = get_plugins();
	if ( ! isset( $installed_plugins[ $plugin ] ) ) {
		return new WP_Error( 'no_plugin_header', __( 'The plugin does not have a valid header.' ) );
	}
	return 0;
}

/**
 * Validates the plugin requirements for WordPress version and PHP version.
 *
 * Uses the information from `Requires at least`, `Requires PHP` and `Requires Plugins` headers
 * defined in the plugin's main PHP file.
 *
 * @since 5.2.0
 * @since 5.3.0 Added support for reading the headers from the plugin's
 *              main PHP file, with `readme.txt` as a fallback.
 * @since 5.8.0 Removed support for using `readme.txt` as a fallback.
 * @since 6.5.0 Added support for the 'Requires Plugins' header.
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return true|WP_Error True if requirements are met, WP_Error on failure.
 */
function validate_plugin_requirements( $plugin ) {
	$plugin_headers = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );

$requirements = array(
		'requires'         => ! empty( $plugin_headers['RequiresWP'] ) ? $plugin_headers['RequiresWP'] : '',
		'requires_php'     => ! empty( $plugin_headers['RequiresPHP'] ) ? $plugin_headers['RequiresPHP'] : '',
		'requires_plugins' => ! empty( $plugin_headers['RequiresPlugins'] ) ? $plugin_headers['RequiresPlugins'] : '',
	);

$compatible_wp  = is_wp_version_compatible( $requirements['requires'] );
	$compatible_php = is_php_version_compatible( $requirements['requires_php'] );

$php_update_message = '' . sprintf(
		/* translators: %s: URL to Update PHP page. */
		__( '<a href="%s">Learn more about updating PHP</a>.' ),
		esc_url( wp_get_update_php_url() )
	);

$annotation = wp_get_update_php_annotation();

if ( $annotation ) {
		$php_update_message .= '' . $annotation . '';
	}

if ( ! $compatible_wp && ! $compatible_php ) {
		return new WP_Error(
			'plugin_wp_php_incompatible',
			'' . sprintf(
				/* translators: 1: Current WordPress version, 2: Current PHP version, 3: Plugin name, 4: Required WordPress version, 5: Required PHP version. */
				_x( 'Error: Current versions of WordPress (%1$s) and PHP (%2$s) do not meet minimum requirements for %3$s. The plugin requires WordPress %4$s and PHP %5$s.', 'plugin' ),
				get_bloginfo( 'version' ),
				PHP_VERSION,
				$plugin_headers['Name'],
				$requirements['requires'],
				$requirements['requires_php']
			) . $php_update_message . ''
		);
	} elseif ( ! $compatible_php ) {
		return new WP_Error(
			'plugin_php_incompatible',
			'' . sprintf(
				/* translators: 1: Current PHP version, 2: Plugin name, 3: Required PHP version. */
				_x( 'Error: Current PHP version (%1$s) does not meet minimum requirements for %2$s. The plugin requires PHP %3$s.', 'plugin' ),
				PHP_VERSION,
				$plugin_headers['Name'],
				$requirements['requires_php']
			) . $php_update_message . ''
		);
	} elseif ( ! $compatible_wp ) {
		return new WP_Error(
			'plugin_wp_incompatible',
			'' . sprintf(
				/* translators: 1: Current WordPress version, 2: Plugin name, 3: Required WordPress version. */
				_x( 'Error: Current WordPress version (%1$s) does not meet minimum requirements for %2$s. The plugin requires WordPress %3$s.', 'plugin' ),
				get_bloginfo( 'version' ),
				$plugin_headers['Name'],
				$requirements['requires']
			) . ''
		);
	}

WP_Plugin_Dependencies::initialize();

if ( WP_Plugin_Dependencies::has_unmet_dependencies( $plugin ) ) {
		$dependency_names       = WP_Plugin_Dependencies::get_dependency_names( $plugin );
		$unmet_dependencies     = array();
		$unmet_dependency_names = array();

foreach ( $dependency_names as $dependency => $dependency_name ) {
			$dependency_file = WP_Plugin_Dependencies::get_dependency_filepath( $dependency );

if ( false === $dependency_file ) {
				$unmet_dependencies['not_installed'][ $dependency ] = $dependency_name;
				$unmet_dependency_names[]                           = $dependency_name;
			} elseif ( is_plugin_inactive( $dependency_file ) ) {
				$unmet_dependencies['inactive'][ $dependency ] = $dependency_name;
				$unmet_dependency_names[]                      = $dependency_name;
			}
		}

$error_message = sprintf(
			/* translators: 1: Plugin name, 2: Number of plugins, 3: A comma-separated list of plugin names. */
			_n(
				'Error: %1$s requires %2$d plugin to be installed and activated: %3$s.',
				'Error: %1$s requires %2$d plugins to be installed and activated: %3$s.',
				count( $unmet_dependency_names )
			),
			$plugin_headers['Name'],
			count( $unmet_dependency_names ),
			implode( wp_get_list_item_separator(), $unmet_dependency_names )
		);

if ( is_multisite() ) {
			if ( current_user_can( 'manage_network_plugins' ) ) {
				$error_message .= ' ' . sprintf(
					/* translators: %s: Link to the plugins page. */
					__( '<a href="%s">Manage plugins</a>.' ),
					esc_url( network_admin_url( 'plugins.php' ) )
				);
			} else {
				$error_message .= ' ' . __( 'Please contact your network administrator.' );
			}
		} else {
			$error_message .= ' ' . sprintf(
				/* translators: %s: Link to the plugins page. */
				__( '<a href="%s">Manage plugins</a>.' ),
				esc_url( admin_url( 'plugins.php' ) )
			);
		}

return new WP_Error(
			'plugin_missing_dependencies',
			"{$error_message}",
			$unmet_dependencies
		);
	}

/**
	 * Filters the plugin requirement validation response.
	 *
	 * If a plugin fails due to a Core-provided validation (incompatible WP, PHP versions), this
	 * filter will not fire. A WP_Error response will already be returned.
	 *
	 * This filter is intended to add additional validation steps by site administrators.
	 *
	 * @since 6.9.0
	 *
	 * @param bool|WP_Error $met_requirements True if the plugin meets requirements, WP_Error if not.
	 * @param string $plugin Path to the plugin file relative to the plugins directory.
	 */
	return apply_filters( 'validate_plugin_requirements', true, $plugin );
}

/**
 * Determines whether the plugin can be uninstalled.
 *
 * @since 2.7.0
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return bool Whether plugin can be uninstalled.
 */
function is_uninstallable_plugin( $plugin ) {
	$file = plugin_basename( $plugin );

$uninstallable_plugins = (array) get_option( 'uninstall_plugins' );
	if ( isset( $uninstallable_plugins[ $file ] ) || file_exists( WP_PLUGIN_DIR . '/' . dirname( $file ) . '/uninstall.php' ) ) {
		return true;
	}

return false;
}

/**
 * Uninstalls a single plugin.
 *
 * Calls the uninstall hook, if it is available.
 *
 * @since 2.7.0
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return true|void True if a plugin's uninstall.php file has been found and included.
 *                   Void otherwise.
 */
function uninstall_plugin( $plugin ) {
	$file = plugin_basename( $plugin );

$uninstallable_plugins = (array) get_option( 'uninstall_plugins' );

/**
	 * Fires in uninstall_plugin() immediately before the plugin is uninstalled.
	 *
	 * @since 4.5.0
	 *
	 * @param string $plugin                Path to the plugin file relative to the plugins directory.
	 * @param array  $uninstallable_plugins Uninstallable plugins.
	 */
	do_action( 'pre_uninstall_plugin', $plugin, $uninstallable_plugins );

if ( file_exists( WP_PLUGIN_DIR . '/' . dirname( $file ) . '/uninstall.php' ) ) {
		if ( isset( $uninstallable_plugins[ $file ] ) ) {
			unset( $uninstallable_plugins[ $file ] );
			update_option( 'uninstall_plugins', $uninstallable_plugins );
		}
		unset( $uninstallable_plugins );

define( 'WP_UNINSTALL_PLUGIN', $file );

wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $file );
		include_once WP_PLUGIN_DIR . '/' . dirname( $file ) . '/uninstall.php';

return true;
	}

if ( isset( $uninstallable_plugins[ $file ] ) ) {
		$callable = $uninstallable_plugins[ $file ];
		unset( $uninstallable_plugins[ $file ] );
		update_option( 'uninstall_plugins', $uninstallable_plugins );
		unset( $uninstallable_plugins );

wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $file );
		include_once WP_PLUGIN_DIR . '/' . $file;

add_action( "uninstall_{$file}", $callable );

/**
		 * Fires in uninstall_plugin() once the plugin has been uninstalled.
		 *
		 * The action concatenates the 'uninstall_' prefix with the basename of the
		 * plugin passed to uninstall_plugin() to create a dynamically-named action.
		 *
		 * @since 2.7.0
		 */
		do_action( "uninstall_{$file}" );
	}
}

//
// Menu.
//

/**
 * Adds a top-level menu page.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 1.5.0
 *
 * @global array $menu
 * @global array $admin_page_hooks
 * @global array $_registered_pages
 * @global array $_parent_pages
 *
 * @param string    $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string    $menu_title The text to be used for the menu.
 * @param string    $capability The capability required for this menu to be displayed to the user.
 * @param string    $menu_slug  The slug name to refer to this menu by. Should be unique for this menu page and only
 *                              include lowercase alphanumeric, dashes, and underscores characters to be compatible
 *                              with sanitize_key().
 * @param callable  $callback   Optional. The function to be called to output the content for this page.
 * @param string    $icon_url   Optional. The URL to the icon to be used for this menu.
 *                              * Pass a base64-encoded SVG using a data URI, which will be colored to match
 *                                the color scheme. This should begin with 'data:image/svg+xml;base64,'.
 *                              * Pass the name of a Dashicons helper class to use a font icon,
 *                                e.g. 'dashicons-chart-pie'.
 *                              * Pass 'none' to leave div.wp-menu-image empty so an icon can be added via CSS.
 * @param int|float $position   Optional. The position in the menu order this item should appear.
 * @return string The resulting page's hook_suffix.
 */
function add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $icon_url = '', $position = null ) {
	global $menu, $admin_page_hooks, $_registered_pages, $_parent_pages;

$menu_slug = plugin_basename( $menu_slug );

$admin_page_hooks[ $menu_slug ] = sanitize_title( $menu_title );

$hookname = get_plugin_page_hookname( $menu_slug, '' );

if ( ! empty( $callback ) && ! empty( $hookname ) && current_user_can( $capability ) ) {
		add_action( $hookname, $callback );
	}

if ( empty( $icon_url ) ) {
		$icon_url   = 'dashicons-admin-generic';
		$icon_class = 'menu-icon-generic ';
	} else {
		$icon_url   = set_url_scheme( $icon_url );
		$icon_class = '';
	}

$new_menu = array( $menu_title, $capability, $menu_slug, $page_title, 'menu-top ' . $icon_class . $hookname, $hookname, $icon_url );

if ( null !== $position && ! is_numeric( $position ) ) {
		_doing_it_wrong(
			__FUNCTION__,
			sprintf(
				/* translators: %s: add_menu_page() */
				__( 'The seventh parameter passed to %s should be numeric representing menu position.' ),
				'<code>add_menu_page()</code>'
			),
			'6.0.0'
		);
		$position = null;
	}

if ( null === $position || ! is_numeric( $position ) ) {
		$menu[] = $new_menu;
	} elseif ( isset( $menu[ (string) $position ] ) ) {
		$collision_avoider = (int) base_convert( substr( md5( $menu_slug . $menu_title ), -4 ), 16, 10 ) * 0.00001;
		$position          = (string) ( $position + $collision_avoider );
		$menu[ $position ] = $new_menu;
	} else {
		/*
		 * Cast menu position to a string.
		 *
		 * This allows for floats to be passed as the position. PHP will normally cast a float to an
		 * integer value, this ensures the float retains its mantissa (positive fractional part).
		 *
		 * A string containing an integer value, eg "10", is treated as a numeric index.
		 */
		$position          = (string) $position;
		$menu[ $position ] = $new_menu;
	}

$_registered_pages[ $hookname ] = true;

// No parent as top level.
	$_parent_pages[ $menu_slug ] = false;

return $hookname;
}

/**
 * Adds a submenu page.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 1.5.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @global array $submenu
 * @global array $menu
 * @global array $_wp_real_parent_file
 * @global bool  $_wp_submenu_nopriv
 * @global array $_registered_pages
 * @global array $_parent_pages
 *
 * @param string    $parent_slug The slug name for the parent menu (or the file name of a standard
 *                               WordPress admin page).
 * @param string    $page_title  The text to be displayed in the title tags of the page when the menu
 *                               is selected.
 * @param string    $menu_title  The text to be used for the menu.
 * @param string    $capability  The capability required for this menu to be displayed to the user.
 * @param string    $menu_slug   The slug name to refer to this menu by. Should be unique for this menu
 *                               and only include lowercase alphanumeric, dashes, and underscores characters
 *                               to be compatible with sanitize_key().
 * @param callable  $callback    Optional. The function to be called to output the content for this page.
 * @param int|float $position    Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_submenu_page( $parent_slug, $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	global $submenu, $menu, $_wp_real_parent_file, $_wp_submenu_nopriv,
		$_registered_pages, $_parent_pages;

$menu_slug   = plugin_basename( $menu_slug );
	$parent_slug = plugin_basename( $parent_slug );

if ( isset( $_wp_real_parent_file[ $parent_slug ] ) ) {
		$parent_slug = $_wp_real_parent_file[ $parent_slug ];
	}

if ( ! current_user_can( $capability ) ) {
		$_wp_submenu_nopriv[ $parent_slug ][ $menu_slug ] = true;
		return false;
	}

/*
	 * If the parent doesn't already have a submenu, add a link to the parent
	 * as the first item in the submenu. If the submenu file is the same as the
	 * parent file someone is trying to link back to the parent manually. In
	 * this case, don't automatically add a link back to avoid duplication.
	 */
	if ( ! isset( $submenu[ $parent_slug ] ) && $menu_slug !== $parent_slug ) {
		foreach ( (array) $menu as $parent_menu ) {
			if ( $parent_menu[2] === $parent_slug && current_user_can( $parent_menu[1] ) ) {
				$submenu[ $parent_slug ][] = array_slice( $parent_menu, 0, 4 );
			}
		}
	}

$new_sub_menu = array( $menu_title, $capability, $menu_slug, $page_title );

if ( null !== $position && ! is_numeric( $position ) ) {
		_doing_it_wrong(
			__FUNCTION__,
			sprintf(
				/* translators: %s: add_submenu_page() */
				__( 'The seventh parameter passed to %s should be numeric representing menu position.' ),
				'<code>add_submenu_page()</code>'
			),
			'5.3.0'
		);
		$position = null;
	}

if (
		null === $position ||
		( ! isset( $submenu[ $parent_slug ] ) || $position >= count( $submenu[ $parent_slug ] ) )
	) {
		$submenu[ $parent_slug ][] = $new_sub_menu;
	} else {
		// Test for a negative position.
		$position = max( $position, 0 );
		if ( 0 === $position ) {
			// For negative or `0` positions, prepend the submenu.
			array_unshift( $submenu[ $parent_slug ], $new_sub_menu );
		} else {
			$position = absint( $position );
			// Grab all of the items before the insertion point.
			$before_items = array_slice( $submenu[ $parent_slug ], 0, $position, true );
			// Grab all of the items after the insertion point.
			$after_items = array_slice( $submenu[ $parent_slug ], $position, null, true );
			// Add the new item.
			$before_items[] = $new_sub_menu;
			// Merge the items.
			$submenu[ $parent_slug ] = array_merge( $before_items, $after_items );
		}
	}

// Sort the parent array.
	ksort( $submenu[ $parent_slug ] );

$hookname = get_plugin_page_hookname( $menu_slug, $parent_slug );
	if ( ! empty( $callback ) && ! empty( $hookname ) ) {
		add_action( $hookname, $callback );
	}

$_registered_pages[ $hookname ] = true;

/*
	 * Backward-compatibility for plugins using add_management_page().
	 * See wp-admin/admin.php for redirect from edit.php to tools.php.
	 */
	if ( 'tools.php' === $parent_slug ) {
		$_registered_pages[ get_plugin_page_hookname( $menu_slug, 'edit.php' ) ] = true;
	}

// No parent as top level.
	$_parent_pages[ $menu_slug ] = $parent_slug;

return $hookname;
}

/**
 * Adds a submenu page to the Tools main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 1.5.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_management_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'tools.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Settings main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 1.5.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_options_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'options-general.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Appearance main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 2.0.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_theme_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'themes.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Plugins main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 3.0.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_plugins_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'plugins.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Users/Profile main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 2.1.3
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_users_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	if ( current_user_can( 'edit_users' ) ) {
		$parent = 'users.php';
	} else {
		$parent = 'profile.php';
	}
	return add_submenu_page( $parent, $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Dashboard main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 2.7.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_dashboard_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'index.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Posts main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 2.7.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_posts_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'edit.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Media main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 2.7.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_media_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'upload.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Links main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 2.7.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_links_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'link-manager.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Pages main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 2.7.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_pages_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'edit.php?post_type=page', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Adds a submenu page to the Comments main menu.
 *
 * This function takes a capability which will be used to determine whether
 * or not a page is included in the menu.
 *
 * The function which is hooked in to handle the output of the page must check
 * that the user has the required capability as well.
 *
 * @since 2.7.0
 * @since 5.3.0 Added the `$position` parameter.
 *
 * @param string   $page_title The text to be displayed in the title tags of the page when the menu is selected.
 * @param string   $menu_title The text to be used for the menu.
 * @param string   $capability The capability required for this menu to be displayed to the user.
 * @param string   $menu_slug  The slug name to refer to this menu by (should be unique for this menu).
 * @param callable $callback   Optional. The function to be called to output the content for this page.
 * @param int      $position   Optional. The position in the menu order this item should appear.
 * @return string|false The resulting page's hook_suffix, or false if the user does not have the capability required.
 */
function add_comments_page( $page_title, $menu_title, $capability, $menu_slug, $callback = '', $position = null ) {
	return add_submenu_page( 'edit-comments.php', $page_title, $menu_title, $capability, $menu_slug, $callback, $position );
}

/**
 * Removes a top-level admin menu.
 *
 * Example usage:
 *
 *  - `remove_menu_page( 'tools.php' )`
 *  - `remove_menu_page( 'plugin_menu_slug' )`
 *
 * @since 3.1.0
 *
 * @global array $menu
 *
 * @param string $menu_slug The slug of the menu.
 * @return array|false The removed menu on success, false if not found.
 */
function remove_menu_page( $menu_slug ) {
	global $menu;

foreach ( $menu as $i => $item ) {
		if ( $menu_slug === $item[2] ) {
			unset( $menu[ $i ] );
			return $item;
		}
	}

return false;
}

/**
 * Removes an admin submenu.
 *
 * Example usage:
 *
 *  - `remove_submenu_page( 'themes.php', 'nav-menus.php' )`
 *  - `remove_submenu_page( 'tools.php', 'plugin_submenu_slug' )`
 *  - `remove_submenu_page( 'plugin_menu_slug', 'plugin_submenu_slug' )`
 *
 * @since 3.1.0
 *
 * @global array $submenu
 *
 * @param string $menu_slug    The slug for the parent menu.
 * @param string $submenu_slug The slug of the submenu.
 * @return array|false The removed submenu on success, false if not found.
 */
function remove_submenu_page( $menu_slug, $submenu_slug ) {
	global $submenu;

if ( ! isset( $submenu[ $menu_slug ] ) ) {
		return false;
	}

foreach ( $submenu[ $menu_slug ] as $i => $item ) {
		if ( $submenu_slug === $item[2] ) {
			unset( $submenu[ $menu_slug ][ $i ] );
			return $item;
		}
	}

return false;
}

/**
 * Gets the URL to access a particular menu page based on the slug it was registered with.
 *
 * If the slug hasn't been registered properly, no URL will be returned.
 *
 * @since 3.0.0
 *
 * @global array $_parent_pages
 *
 * @param string $menu_slug The slug name to refer to this menu by (should be unique for this menu).
 * @param bool   $display   Optional. Whether or not to display the URL. Default true.
 * @return string The menu page URL.
 */
function menu_page_url( $menu_slug, $display = true ) {
	global $_parent_pages;

if ( isset( $_parent_pages[ $menu_slug ] ) ) {
		$parent_slug = $_parent_pages[ $menu_slug ];

if ( $parent_slug && ! isset( $_parent_pages[ $parent_slug ] ) ) {
			$url = admin_url( add_query_arg( 'page', $menu_slug, $parent_slug ) );
		} else {
			$url = admin_url( 'admin.php?page=' . $menu_slug );
		}
	} else {
		$url = '';
	}

$url = esc_url( $url );

if ( $display ) {
		echo $url;
	}

return $url;
}

//
// Pluggable Menu Support -- Private.
//
/**
 * Gets the parent file of the current admin page.
 *
 * @since 1.5.0
 *
 * @global string $parent_file
 * @global array  $menu
 * @global array  $submenu
 * @global string $pagenow              The filename of the current screen.
 * @global string $typenow              The post type of the current screen.
 * @global string $plugin_page
 * @global array  $_wp_real_parent_file
 * @global array  $_wp_menu_nopriv
 * @global array  $_wp_submenu_nopriv
 *
 * @param string $parent_page Optional. The slug name for the parent menu (or the file name
 *                            of a standard WordPress admin page). Default empty string.
 * @return string The parent file of the current admin page.
 */
function get_admin_page_parent( $parent_page = '' ) {
	global $parent_file, $menu, $submenu, $pagenow, $typenow,
		$plugin_page, $_wp_real_parent_file, $_wp_menu_nopriv, $_wp_submenu_nopriv;

if ( ! empty( $parent_page ) && 'admin.php' !== $parent_page ) {
		return $_wp_real_parent_file[ $parent_page ] ?? $parent_page;
	}

if ( 'admin.php' === $pagenow && isset( $plugin_page ) ) {
		foreach ( (array) $menu as $parent_menu ) {
			if ( $parent_menu[2] === $plugin_page ) {
				$parent_file = $plugin_page;
				return $_wp_real_parent_file[ $parent_file ] ?? $parent_file;
			}
		}
		if ( isset( $_wp_menu_nopriv[ $plugin_page ] ) ) {
			$parent_file = $plugin_page;
			return $_wp_real_parent_file[ $parent_file ] ?? $parent_file;
		}
	}

if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[ $pagenow ][ $plugin_page ] ) ) {
		$parent_file = $pagenow;
		return $_wp_real_parent_file[ $parent_file ] ?? $parent_file;
	}

foreach ( array_keys( (array) $submenu ) as $parent_page ) {
		foreach ( $submenu[ $parent_page ] as $submenu_array ) {
			if ( isset( $_wp_real_parent_file[ $parent_page ] ) ) {
				$parent_page = $_wp_real_parent_file[ $parent_page ];
			}

if ( ! empty( $typenow ) && "$pagenow?post_type=$typenow" === $submenu_array[2] ) {
				$parent_file = $parent_page;
				return $parent_page;
			} elseif ( empty( $typenow ) && $pagenow === $submenu_array[2]
				&& ( empty( $parent_file ) || ! str_contains( $parent_file, '?' ) )
			) {
				$parent_file = $parent_page;
				return $parent_page;
			} elseif ( isset( $plugin_page ) && $plugin_page === $submenu_array[2] ) {
				$parent_file = $parent_page;
				return $parent_page;
			}
		}
	}

if ( empty( $parent_file ) ) {
		$parent_file = '';
	}
	return '';
}

/**
 * Gets the title of the current admin page.
 *
 * @since 1.5.0
 *
 * @global string $title       The title of the current screen.
 * @global array  $menu
 * @global array  $submenu
 * @global string $pagenow     The filename of the current screen.
 * @global string $typenow     The post type of the current screen.
 * @global string $plugin_page
 *
 * @return string The title of the current admin page.
 */
function get_admin_page_title() {
	global $title, $menu, $submenu, $pagenow, $typenow, $plugin_page;

if ( ! empty( $title ) ) {
		return $title;
	}

$hook = get_plugin_page_hook( $plugin_page, $pagenow );

$parent  = get_admin_page_parent();
	$parent1 = $parent;

if ( empty( $parent ) ) {
		foreach ( (array) $menu as $menu_array ) {
			if ( isset( $menu_array[3] ) ) {
				if ( $menu_array[2] === $pagenow ) {
					$title = $menu_array[3];
					return $menu_array[3];
				} elseif ( isset( $plugin_page ) && $plugin_page === $menu_array[2] && $hook === $menu_array[5] ) {
					$title = $menu_array[3];
					return $menu_array[3];
				}
			} else {
				$title = $menu_array[0];
				return $title;
			}
		}
	} else {
		foreach ( array_keys( $submenu ) as $parent ) {
			foreach ( $submenu[ $parent ] as $submenu_array ) {
				if ( isset( $plugin_page )
					&& $plugin_page === $submenu_array[2]
					&& ( $pagenow === $parent
						|| $plugin_page === $parent
						|| $plugin_page === $hook
						|| 'admin.php' === $pagenow && $parent1 !== $submenu_array[2]
						|| ! empty( $typenow ) && "$pagenow?post_type=$typenow" === $parent )
					) {
						$title = $submenu_array[3];
						return $submenu_array[3];
				}

if ( $submenu_array[2] !== $pagenow || isset( $_GET['page'] ) ) { // Not the current page.
					continue;
				}

if ( isset( $submenu_array[3] ) ) {
					$title = $submenu_array[3];
					return $submenu_array[3];
				} else {
					$title = $submenu_array[0];
					return $title;
				}
			}
		}
		if ( empty( $title ) ) {
			foreach ( $menu as $menu_array ) {
				if ( isset( $plugin_page )
					&& $plugin_page === $menu_array[2]
					&& 'admin.php' === $pagenow
					&& $parent1 === $menu_array[2]
				) {
						$title = $menu_array[3];
						return $menu_array[3];
				}
			}
		}
	}

return $title;
}

/**
 * Gets the hook attached to the administrative page of a plugin.
 *
 * @since 1.5.0
 *
 * @param string $plugin_page The slug name of the plugin page.
 * @param string $parent_page The slug name for the parent menu (or the file name of a standard
 *                            WordPress admin page).
 * @return string|null Hook attached to the plugin page, null otherwise.
 */
function get_plugin_page_hook( $plugin_page, $parent_page ) {
	$hook = get_plugin_page_hookname( $plugin_page, $parent_page );
	if ( has_action( $hook ) ) {
		return $hook;
	} else {
		return null;
	}
}

/**
 * Gets the hook name for the administrative page of a plugin.
 *
 * @since 1.5.0
 *
 * @global array $admin_page_hooks
 *
 * @param string $plugin_page The slug name of the plugin page.
 * @param string $parent_page The slug name for the parent menu (or the file name of a standard
 *                            WordPress admin page).
 * @return string Hook name for the plugin page.
 */
function get_plugin_page_hookname( $plugin_page, $parent_page ) {
	global $admin_page_hooks;

$parent = get_admin_page_parent( $parent_page );

$page_type = 'admin';
	if ( empty( $parent_page ) || 'admin.php' === $parent_page || isset( $admin_page_hooks[ $plugin_page ] ) ) {
		if ( isset( $admin_page_hooks[ $plugin_page ] ) ) {
			$page_type = 'toplevel';
		} elseif ( isset( $admin_page_hooks[ $parent ] ) ) {
			$page_type = $admin_page_hooks[ $parent ];
		}
	} elseif ( isset( $admin_page_hooks[ $parent ] ) ) {
		$page_type = $admin_page_hooks[ $parent ];
	}

$plugin_name = preg_replace( '!\.php!', '', $plugin_page );

return $page_type . '_page_' . $plugin_name;
}

/**
 * Determines whether the current user can access the current admin page.
 *
 * @since 1.5.0
 *
 * @global string $pagenow            The filename of the current screen.
 * @global array  $menu
 * @global array  $submenu
 * @global array  $_wp_menu_nopriv
 * @global array  $_wp_submenu_nopriv
 * @global string $plugin_page
 * @global array  $_registered_pages
 *
 * @return bool True if the current user can access the admin page, false otherwise.
 */
function user_can_access_admin_page() {
	global $pagenow, $menu, $submenu, $_wp_menu_nopriv, $_wp_submenu_nopriv,
		$plugin_page, $_registered_pages;

$parent = get_admin_page_parent();

if ( ! isset( $plugin_page ) && isset( $_wp_submenu_nopriv[ $parent ][ $pagenow ] ) ) {
		return false;
	}

if ( isset( $plugin_page ) ) {
		if ( isset( $_wp_submenu_nopriv[ $parent ][ $plugin_page ] ) ) {
			return false;
		}

$hookname = get_plugin_page_hookname( $plugin_page, $parent );

if ( ! isset( $_registered_pages[ $hookname ] ) ) {
			return false;
		}
	}

if ( empty( $parent ) ) {
		if ( isset( $_wp_menu_nopriv[ $pagenow ] ) ) {
			return false;
		}
		if ( isset( $_wp_submenu_nopriv[ $pagenow ][ $pagenow ] ) ) {
			return false;
		}
		if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[ $pagenow ][ $plugin_page ] ) ) {
			return false;
		}
		if ( isset( $plugin_page ) && isset( $_wp_menu_nopriv[ $plugin_page ] ) ) {
			return false;
		}

foreach ( array_keys( $_wp_submenu_nopriv ) as $key ) {
			if ( isset( $_wp_submenu_nopriv[ $key ][ $pagenow ] ) ) {
				return false;
			}
			if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[ $key ][ $plugin_page ] ) ) {
				return false;
			}
		}

return true;
	}

if ( isset( $plugin_page ) && $plugin_page === $parent && isset( $_wp_menu_nopriv[ $plugin_page ] ) ) {
		return false;
	}

if ( isset( $submenu[ $parent ] ) ) {
		foreach ( $submenu[ $parent ] as $submenu_array ) {
			if ( isset( $plugin_page ) && $submenu_array[2] === $plugin_page ) {
				return current_user_can( $submenu_array[1] );
			} elseif ( $submenu_array[2] === $pagenow ) {
				return current_user_can( $submenu_array[1] );
			}
		}
	}

foreach ( $menu as $menu_array ) {
		if ( $menu_array[2] === $parent ) {
			return current_user_can( $menu_array[1] );
		}
	}

return true;
}

/* Allowed list functions */

/**
 * Refreshes the value of the allowed options list available via the 'allowed_options' hook.
 *
 * See the {@see 'allowed_options'} filter.
 *
 * @since 2.7.0
 * @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`.
 *              Please consider writing more inclusive code.
 *
 * @global array $new_allowed_options
 *
 * @param array $options
 * @return array Updated allowed options.
 */
function option_update_filter( $options ) {
	global $new_allowed_options;

if ( is_array( $new_allowed_options ) ) {
		$options = add_allowed_options( $new_allowed_options, $options );
	}

return $options;
}

/**
 * Adds an array of options to the list of allowed options.
 *
 * @since 5.5.0
 *
 * @global array $allowed_options
 *
 * @param array        $new_options
 * @param string|array $options
 * @return array Updated allowed options.
 */
function add_allowed_options( $new_options, $options = '' ) {
	if ( '' === $options ) {
		global $allowed_options;
	} else {
		$allowed_options = $options;
	}

foreach ( $new_options as $page => $keys ) {
		foreach ( $keys as $key ) {
			if ( ! isset( $allowed_options[ $page ] ) || ! is_array( $allowed_options[ $page ] ) ) {
				$allowed_options[ $page ]   = array();
				$allowed_options[ $page ][] = $key;
			} else {
				$pos = array_search( $key, $allowed_options[ $page ], true );
				if ( false === $pos ) {
					$allowed_options[ $page ][] = $key;
				}
			}
		}
	}

return $allowed_options;
}

/**
 * Removes a list of options from the allowed options list.
 *
 * @since 5.5.0
 *
 * @global array $allowed_options
 *
 * @param array        $del_options
 * @param string|array $options
 * @return array Updated allowed options.
 */
function remove_allowed_options( $del_options, $options = '' ) {
	if ( '' === $options ) {
		global $allowed_options;
	} else {
		$allowed_options = $options;
	}

foreach ( $del_options as $page => $keys ) {
		foreach ( $keys as $key ) {
			if ( isset( $allowed_options[ $page ] ) && is_array( $allowed_options[ $page ] ) ) {
				$pos = array_search( $key, $allowed_options[ $page ], true );
				if ( false !== $pos ) {
					unset( $allowed_options[ $page ][ $pos ] );
				}
			}
		}
	}

return $allowed_options;
}

/**
 * Outputs nonce, action, and option_page fields for a settings page.
 *
 * @since 2.7.0
 *
 * @param string $option_group A settings group name. This should match the group name
 * used in register_setting().
 */
function settings_fields( $option_group ) {
	echo "<input type='hidden' name='option_page' value='" . esc_attr( $option_group ) . "' />";
	echo '<input type="hidden" name="action" value="update" />';
	wp_nonce_field( "$option_group-options" );
}

/**
 * Clears the plugins cache used by get_plugins() and by default, the plugin updates cache.
 *
 * @since 3.7.0
 *
 * @param bool $clear_update_cache Whether to clear the plugin updates cache. Default true.
 */
function wp_clean_plugins_cache( $clear_update_cache = true ) {
	if ( $clear_update_cache ) {
		delete_site_transient( 'update_plugins' );
	}
	wp_cache_delete( 'plugins', 'plugins' );
}

/**
 * Loads a given plugin attempt to generate errors.
 *
 * @since 3.0.0
 * @since 4.4.0 Function was moved into the `wp-admin/includes/plugin.php` file.
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 */
function plugin_sandbox_scrape( $plugin ) {
	if ( ! defined( 'WP_SANDBOX_SCRAPING' ) ) {
		define( 'WP_SANDBOX_SCRAPING', true );
	}

wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $plugin );
	include_once WP_PLUGIN_DIR . '/' . $plugin;
}

/**
 * Declares a helper function for adding content to the Privacy Policy Guide.
 *
 * Plugins and themes should suggest text for inclusion in the site's privacy policy.
 * The suggested text should contain information about any functionality that affects user privacy,
 * and will be shown on the Privacy Policy Guide screen.
 *
 * A plugin or theme can use this function multiple times as long as it will help to better present
 * the suggested policy content. For example modular plugins such as WooCommerse or Jetpack
 * can add or remove suggested content depending on the modules/extensions that are enabled.
 * For more information see the Plugin Handbook:
 * https://developer.wordpress.org/plugins/privacy/suggesting-text-for-the-site-privacy-policy/.
 *
 * The HTML contents of the `$policy_text` supports use of a specialized `.privacy-policy-tutorial`
 * CSS class which can be used to provide supplemental information. Any content contained within
 * HTML elements that have the `.privacy-policy-tutorial` CSS class applied will be omitted
 * from the clipboard when the section content is copied.
 *
 * Intended for use with the `'admin_init'` action.
 *
 * @since 4.9.6
 *
 * @param string $plugin_name The name of the plugin or theme that is suggesting content
 * for the site's privacy policy.
 * @param string $policy_text The suggested content for inclusion in the policy.
 */
function wp_add_privacy_policy_content( $plugin_name, $policy_text ) {
	if ( ! is_admin() ) {
		_doing_it_wrong(
			__FUNCTION__,
			sprintf(
				/* translators: %s: admin_init */
				__( 'The suggested privacy policy content should be added only in wp-admin by using the %s (or later) action.' ),
				'<code>admin_init</code>'
			),
			'4.9.7'
		);
		return;
	} elseif ( ! doing_action( 'admin_init' ) && ! did_action( 'admin_init' ) ) {
		_doing_it_wrong(
			__FUNCTION__,
			sprintf(
				/* translators: %s: admin_init */
				__( 'The suggested privacy policy content should be added by using the %s (or later) action. Please see the inline documentation.' ),
				'<code>admin_init</code>'
			),
			'4.9.7'
		);
		return;
	}

if ( ! class_exists( 'WP_Privacy_Policy_Content' ) ) {
		require_once ABSPATH . 'wp-admin/includes/class-wp-privacy-policy-content.php';
	}

WP_Privacy_Policy_Content::add( $plugin_name, $policy_text );
}

/**
 * Determines whether a plugin is technically active but was paused while
 * loading.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 5.2.0
 *
 * @global WP_Paused_Extensions_Storage $_paused_plugins
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return bool True, if in the list of paused plugins. False, if not in the list.
 */
function is_plugin_paused( $plugin ) {
	if ( ! isset( $GLOBALS['_paused_plugins'] ) ) {
		return false;
	}

if ( ! is_plugin_active( $plugin ) ) {
		return false;
	}

list( $plugin ) = explode( '/', $plugin );

return array_key_exists( $plugin, $GLOBALS['_paused_plugins'] );
}

/**
 * Gets the error that was recorded for a paused plugin.
 *
 * @since 5.2.0
 *
 * @global WP_Paused_Extensions_Storage $_paused_plugins
 *
 * @param string $plugin Path to the plugin file relative to the plugins directory.
 * @return array|false Array of error information as returned by `error_get_last()`,
 *                     or false if none was recorded.
 */
function wp_get_plugin_error( $plugin ) {
	if ( ! isset( $GLOBALS['_paused_plugins'] ) ) {
		return false;
	}

list( $plugin ) = explode( '/', $plugin );

if ( ! array_key_exists( $plugin, $GLOBALS['_paused_plugins'] ) ) {
		return false;
	}

return $GLOBALS['_paused_plugins'][ $plugin ];
}

/**
 * Tries to resume a single plugin.
 *
 * If a redirect was provided, we first ensure the plugin does not throw fatal
 * errors anymore.
 *
 * The way it works is by setting the redirection to the error before trying to
 * include the plugin file. If the plugin fails, then the redirection will not
 * be overwritten with the success message and the plugin will not be resumed.
 *
 * @since 5.2.0
 *
 * @param string $plugin   Single plugin to resume.
 * @param string $redirect Optional. URL to redirect to. Default empty string.
 * @return true|WP_Error True on success, false if `$plugin` was not paused,
 *                       `WP_Error` on failure.
 */
function resume_plugin( $plugin, $redirect = '' ) {
	/*
	 * We'll override this later if the plugin could be resumed without
	 * creating a fatal error.
	 */
	if ( ! empty( $redirect ) ) {
		wp_redirect(
			add_query_arg(
				'_error_nonce',
				wp_create_nonce( 'plugin-resume-error_' . $plugin ),
				$redirect
			)
		);

// Load the plugin to test whether it throws a fatal error.
		ob_start();
		plugin_sandbox_scrape( $plugin );
		ob_clean();
	}

list( $extension ) = explode( '/', $plugin );

$result = wp_paused_plugins()->delete( $extension );

if ( ! $result ) {
		return new WP_Error(
			'could_not_resume_plugin',
			__( 'Could not resume the plugin.' )
		);
	}

return true;
}

/**
 * Renders an admin notice in case some plugins have been paused due to errors.
 *
 * @since 5.2.0
 *
 * @global string                       $pagenow         The filename of the current screen.
 * @global WP_Paused_Extensions_Storage $_paused_plugins
 */
function paused_plugins_notice() {
	if ( 'plugins.php' === $GLOBALS['pagenow'] ) {
		return;
	}

if ( ! current_user_can( 'resume_plugins' ) ) {
		return;
	}

if ( ! isset( $GLOBALS['_paused_plugins'] ) || empty( $GLOBALS['_paused_plugins'] ) ) {
		return;
	}

$message = sprintf(
		'%s %s<a href="%s">%s</a>',
		__( 'One or more plugins failed to load properly.' ),
		__( 'You can find more details and make changes on the Plugins screen.' ),
		esc_url( admin_url( 'plugins.php?plugin_status=paused' ) ),
		__( 'Go to the Plugins screen' )
	);
	wp_admin_notice(
		$message,
		array( 'type' => 'error' )
	);
}

/**
 * Renders an admin notice when a plugin was deactivated during an update.
 *
 * Displays an admin notice in case a plugin has been deactivated during an
 * upgrade due to incompatibility with the current version of WordPress.
 *
 * @since 5.8.0
 * @access private
 *
 * @global string $pagenow    The filename of the current screen.
 * @global string $wp_version The WordPress version string.
 */
function deactivated_plugins_notice() {
	if ( 'plugins.php' === $GLOBALS['pagenow'] ) {
		return;
	}

if ( ! current_user_can( 'activate_plugins' ) ) {
		return;
	}

$blog_deactivated_plugins = get_option( 'wp_force_deactivated_plugins' );
	$site_deactivated_plugins = array();

if ( false === $blog_deactivated_plugins ) {
		// Option not in database, add an empty array to avoid extra DB queries on subsequent loads.
		update_option( 'wp_force_deactivated_plugins', array(), false );
	}

if ( is_multisite() ) {
		$site_deactivated_plugins = get_site_option( 'wp_force_deactivated_plugins' );
		if ( false === $site_deactivated_plugins ) {
			// Option not in database, add an empty array to avoid extra DB queries on subsequent loads.
			update_site_option( 'wp_force_deactivated_plugins', array() );
		}
	}

if ( empty( $blog_deactivated_plugins ) && empty( $site_deactivated_plugins ) ) {
		// No deactivated plugins.
		return;
	}

$deactivated_plugins = array_merge( $blog_deactivated_plugins, $site_deactivated_plugins );

foreach ( $deactivated_plugins as $plugin ) {
		if ( ! empty( $plugin['version_compatible'] ) && ! empty( $plugin['version_deactivated'] ) ) {
			$explanation = sprintf(
				/* translators: 1: Name of deactivated plugin, 2: Plugin version deactivated, 3: Current WP version, 4: Compatible plugin version. */
				__( '%1$s %2$s was deactivated due to incompatibility with WordPress %3$s, please upgrade to %1$s %4$s or later.' ),
				$plugin['plugin_name'],
				$plugin['version_deactivated'],
				$GLOBALS['wp_version'],
				$plugin['version_compatible']
			);
		} else {
			$explanation = sprintf(
				/* translators: 1: Name of deactivated plugin, 2: Plugin version deactivated, 3: Current WP version. */
				__( '%1$s %2$s was deactivated due to incompatibility with WordPress %3$s.' ),
				$plugin['plugin_name'],
				! empty( $plugin['version_deactivated'] ) ? $plugin['version_deactivated'] : '',
				$GLOBALS['wp_version'],
				$plugin['version_compatible']
			);
		}

$message = sprintf(
			'%s %s<a href="%s">%s</a>',
			sprintf(
				/* translators: %s: Name of deactivated plugin. */
				__( '%s plugin deactivated during WordPress upgrade.' ),
				$plugin['plugin_name']
			),
			$explanation,
			esc_url( admin_url( 'plugins.php?plugin_status=inactive' ) ),
			__( 'Go to the Plugins screen' )
		);
		wp_admin_notice( $message, array( 'type' => 'warning' ) );
	}

// Empty the options.
	update_option( 'wp_force_deactivated_plugins', array(), false );
	if ( is_multisite() ) {
		update_site_option( 'wp_force_deactivated_plugins', array() );
	}
}

Dosya Yükle

The Lost Era - Archaeology News & Ancient History

How much best online casino slots money Perform Survivor Contestants Get?

Blogs Best online casino slots – PLAYERSLoveSPLASH Sports Charges Devices? Greatest NBA User Props Now, 05/13: Tend to Cavaliers’ Mitchell Sit Hot Offensively? Taxation – The storyline out of Richard ...

The Lost ERA Team

May 27, 2026

Google Gamble Shop Install Android APK 100 percent 50 free spins fruitoids free 51 3.25

Blogs 50 free spins fruitoids | Where you can play the Cleopatra video slot on the web the real deal money Better Casino To experience It Slot for real Currency ...

The Lost ERA Team

May 27, 2026

Survivor Slot casinos4u slots promo Opinion & Bonus ᐈ Get 120 Free Revolves

Score complete usage of advanced content, personal provides and you can an casinos4u slots promo increasing directory of associate benefits. It’s a variety of promotions gambling enterprises render in which ...

The Lost ERA Team

May 27, 2026

Thunderstruck online casinos song Wikipedia Charge Characteristics

Content Thunderstruck II Position Assessment The nice Hallway away from Revolves (100 percent free Revolves & Multipliers) Thunderstruck Slot machine game Fans of your Thunderstruck dos slot game can enjoy ...

The Lost ERA Team

May 27, 2026

Thunderstruck Nuts Lightning Position top casino payment methods 2026 Demonstration

Content Top casino payment methods: We influence 20 million users that’s the most effective company and you will tech innovation circle-in the world Play Thunderstruck 2 the real deal Currency: ...

The Lost ERA Team

May 27, 2026

Survivor Slot Opinion & Added bonus ᐈ Score 120 mrbet casino Totally free Revolves

Blogs Mrbet casino: Tips Play regarding the Survivor position Game? The issue: Us Understand the have that produce running an enthusiastic NFL Survivor pond on the internet simple for commissioners ...

The Lost ERA Team

May 27, 2026

Attention Warlocks Spell play sirens treasures slot online gamble position Needed! Cloudflare Visa Features

Blogs Play sirens treasures slot online | Desktop Gambling Thunderstruck Position casino Captain Jack $a hundred free spins Review 2026 Play On the internet Greatest Casino Playing That it Position ...

The Lost ERA Team

May 27, 2026

How to Greatly enhance Possibilities of Winning ice casino promo code no deposit : Pokie machines Thunderstruck Position Strategy

The new picture within this identity transport one to a full world of unbelievable fights and divine areas, having committed signs for example Thor’s hammer and super screws popping up ...

The Lost ERA Team

May 27, 2026

Best Us Casinos on the internet you to definitely Pays Real money inside 2026

Bovada shocks your with fascinating incentives once you create the online casino games or wagering. You will find higher-high quality three-dimensional movies slots and conventional around three-reel slot games including ...

The Lost ERA Team

May 27, 2026

Gamble Thunderstruck Slot 96 ten% RTP Real casino jacks or better 1h cash Video game

Articles Casino jacks or better 1h | Thunderstruck Slot Secret Has We views the new offerings of fascinating the fresh crypto websites gambling enterprise networks Simple tips to Earn The ...

The Lost ERA Team

May 27, 2026

1…2,038 2,0392,0402,041 2,042…5,315

The Lost ERA is a dedicated archaeology & history news site offering well-researched insights, discoveries, and educational articles on ancient civilizations, cultural heritage, and archaeological science. We strive to bring accurate historical reporting and engaging content to global readers.

Disclaimer

The Lost ERA provides research-based historical and archaeological content for educational purposes only. While we strive for accuracy, information may evolve with new discoveries. We are not responsible for external links or third-party content.

About Us

Editorial Policy

Publishing principles

Corrections & Updates