`, and `WP_DEBUG_LOG`. * All three can be defined in wp-config.php. By default, `WP_DEBUG` and * `WP_DEBUG_LOG` are set to false, and `WP_DEBUG_DISPLAY` is set to true. * * When `WP_DEBUG` is true, all PHP notices are reported. WordPress will also * display internal notices: when a deprecated WordPress function, function * argument, or file is used. Deprecated code may be removed from a later * version. * * It is strongly recommended that plugin and theme developers use `WP_DEBUG` * in their development environments. * * `WP_DEBUG_DISPLAY` and `WP_DEBUG_LOG` perform no function unless `WP_DEBUG` * is true. * * When `WP_DEBUG_DISPLAY` is true, WordPress will force errors to be displayed. * `WP_DEBUG_DISPLAY` defaults to true. Defining it as null prevents WordPress * from changing the global configuration setting. Defining `WP_DEBUG_DISPLAY` * as false will force errors to be hidden. * * When `WP_DEBUG_LOG` is true, errors will be logged to debug.log in the content * directory. * * Errors are never displayed for XML-RPC, REST, and Ajax requests. * * @since 3.0.0 * @access private */ function wp_debug_mode() { if ( WP_DEBUG ) { error_reporting( E_ALL ); if ( WP_DEBUG_DISPLAY ) ini_set( 'display_errors', 1 ); elseif ( null !== WP_DEBUG_DISPLAY ) ini_set( 'display_errors', 0 ); if ( WP_DEBUG_LOG ) { ini_set( 'log_errors', 1 ); ini_set( 'error_log', WP_CONTENT_DIR . '/debug.log' ); } } else { error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR ); } if ( defined( 'XMLRPC_REQUEST' ) || defined( 'REST_REQUEST' ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) ) { @ini_set( 'display_errors', 0 ); } } /** * Set the location of the language directory. * * To set directory manually, define the `WP_LANG_DIR` constant * in wp-config.php. * * If the language directory exists within `WP_CONTENT_DIR`, it * is used. Otherwise the language directory is assumed to live * in `WPINC`. * * @since 3.0.0 * @access private */ function wp_set_lang_dir() { if ( !defined( 'WP_LANG_DIR' ) ) { if ( file_exists( WP_CONTENT_DIR . '/languages' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) || !@is_dir(ABSPATH . WPINC . '/languages') ) { /** * Server path of the language directory. * * No leading slash, no trailing slash, full path, not relative to ABSPATH * * @since 2.1.0 */ define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' ); if ( !defined( 'LANGDIR' ) ) { // Old static relative path maintained for limited backwards compatibility - won't work in some cases define( 'LANGDIR', 'wp-content/languages' ); } } else { /** * Server path of the language directory. * * No leading slash, no trailing slash, full path, not relative to `ABSPATH`. * * @since 2.1.0 */ define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' ); if ( !defined( 'LANGDIR' ) ) { // Old relative path maintained for backwards compatibility define( 'LANGDIR', WPINC . '/languages' ); } } } } /** * Load the database class file and instantiate the `$wpdb` global. * * @since 2.5.0 * * @global wpdb $wpdb The WordPress database class. */ function require_wp_db() { global $wpdb; require_once( ABSPATH . WPINC . '/wp-db.php' ); if ( file_exists( WP_CONTENT_DIR . '/db.php' ) ) require_once( WP_CONTENT_DIR . '/db.php' ); if ( isset( $wpdb ) ) return; $wpdb = new wpdb( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST ); } /** * Set the database table prefix and the format specifiers for database * table columns. * * Columns not listed here default to `%s`. * * @since 3.0.0 * @access private * * @global wpdb $wpdb The WordPress database class. * @global string $table_prefix The database table prefix. */ function wp_set_wpdb_vars() { global $wpdb, $table_prefix; if ( !empty( $wpdb->error ) ) dead_db(); $wpdb->field_types = array( 'post_author' => '%d', 'post_parent' => '%d', 'menu_order' => '%d', 'term_id' => '%d', 'term_group' => '%d', 'term_taxonomy_id' => '%d', 'parent' => '%d', 'count' => '%d','object_id' => '%d', 'term_order' => '%d', 'ID' => '%d', 'comment_ID' => '%d', 'comment_post_ID' => '%d', 'comment_parent' => '%d', 'user_id' => '%d', 'link_id' => '%d', 'link_owner' => '%d', 'link_rating' => '%d', 'option_id' => '%d', 'blog_id' => '%d', 'meta_id' => '%d', 'post_id' => '%d', 'user_status' => '%d', 'umeta_id' => '%d', 'comment_karma' => '%d', 'comment_count' => '%d', // multisite: 'active' => '%d', 'cat_id' => '%d', 'deleted' => '%d', 'lang_id' => '%d', 'mature' => '%d', 'public' => '%d', 'site_id' => '%d', 'spam' => '%d', ); $prefix = $wpdb->set_prefix( $table_prefix ); if ( is_wp_error( $prefix ) ) { wp_load_translations_early(); wp_die( /* translators: 1: $table_prefix 2: wp-config.php */ sprintf( __( 'ERROR: %1$s in %2$s can only contain numbers, letters, and underscores.' ), '$table_prefix', 'wp-config.php' ) ); } } /** * Toggle `$_wp_using_ext_object_cache` on and off without directly * touching global. * * @since 3.7.0 * * @global bool $_wp_using_ext_object_cache * * @param bool $using Whether external object cache is being used. * @return bool The current 'using' setting. */ function wp_using_ext_object_cache( $using = null ) { global $_wp_using_ext_object_cache; $current_using = $_wp_using_ext_object_cache; if ( null !== $using ) $_wp_using_ext_object_cache = $using; return $current_using; } /** * Start the WordPress object cache. * * If an object-cache.php file exists in the wp-content directory, * it uses that drop-in as an external object cache. * * @since 3.0.0 * @access private * * @global int $blog_id Blog ID. */ function wp_start_object_cache() { global $blog_id; $first_init = false; if ( ! function_exists( 'wp_cache_init' ) ) { if ( file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) { require_once ( WP_CONTENT_DIR . '/object-cache.php' ); if ( function_exists( 'wp_cache_init' ) ) wp_using_ext_object_cache( true ); } $first_init = true; } elseif ( ! wp_using_ext_object_cache() && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) { /* * Sometimes advanced-cache.php can load object-cache.php before * it is loaded here. This breaks the function_exists check above * and can result in `$_wp_using_ext_object_cache` being set * incorrectly. Double check if an external cache exists. */ wp_using_ext_object_cache( true ); } if ( ! wp_using_ext_object_cache() ) require_once ( ABSPATH . WPINC . '/cache.php' ); /* * If cache supports reset, reset instead of init if already * initialized. Reset signals to the cache that global IDs * have changed and it may need to update keys and cleanup caches. */ if ( ! $first_init && function_exists( 'wp_cache_switch_to_blog' ) ) wp_cache_switch_to_blog( $blog_id ); elseif ( function_exists( 'wp_cache_init' ) ) wp_cache_init(); if ( function_exists( 'wp_cache_add_global_groups' ) ) { wp_cache_add_global_groups( array( 'users', 'userlogins', 'usermeta', 'user_meta', 'useremail', 'userslugs', 'site-transient', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss', 'global-posts', 'blog-id-cache', 'networks', 'sites' ) ); wp_cache_add_non_persistent_groups( array( 'comment', 'counts', 'plugins' ) ); } } /** * Redirect to the installer if WordPress is not installed. * * Dies with an error message when Multisite is enabled. * * @since 3.0.0 * @access private */ function wp_not_installed() { if ( is_multisite() ) { if ( ! is_blog_installed() && ! wp_installing() ) { nocache_headers(); wp_die( __( 'The site you have requested is not installed properly. Please contact the system administrator.' ) ); } } elseif ( ! is_blog_installed() && ! wp_installing() ) { nocache_headers(); require( ABSPATH . WPINC . '/kses.php' ); require( ABSPATH . WPINC . '/pluggable.php' ); require( ABSPATH . WPINC . '/formatting.php' ); $link = wp_guess_url() . '/wp-admin/install.php'; wp_redirect( $link ); die(); } } /** * Retrieve an array of must-use plugin files. * * The default directory is wp-content/mu-plugins. To change the default * directory manually, define `WPMU_PLUGIN_DIR` and `WPMU_PLUGIN_URL` * in wp-config.php. * * @since 3.0.0 * @access private * * @return array Files to include. */ function wp_get_mu_plugins() { $mu_plugins = array(); if ( !is_dir( WPMU_PLUGIN_DIR ) ) return $mu_plugins; if ( ! $dh = opendir( WPMU_PLUGIN_DIR ) ) return $mu_plugins; while ( ( $plugin = readdir( $dh ) ) !== false ) { if ( substr( $plugin, -4 ) == '.php' ) $mu_plugins[] = WPMU_PLUGIN_DIR . '/' . $plugin; } closedir( $dh ); sort( $mu_plugins ); return $mu_plugins; } /** * Retrieve an array of active and valid plugin files. * * While upgrading or installing WordPress, no plugins are returned. * * The default directory is wp-content/plugins. To change the default * directory manually, define `WP_PLUGIN_DIR` and `WP_PLUGIN_URL` * in wp-config.php. * * @since 3.0.0 * @access private * * @return array Files. */ function wp_get_active_and_valid_plugins() { $plugins = array(); $active_plugins = (array) get_option( 'active_plugins', array() ); // Check for hacks file if the option is enabled if ( get_option( 'hack_file' ) && file_exists( ABSPATH . 'my-hacks.php' ) ) { _deprecated_file( 'my-hacks.php', '1.5' ); array_unshift( $plugins, ABSPATH . 'my-hacks.php' ); } if ( empty( $active_plugins ) || wp_installing() ) return $plugins; $network_plugins = is_multisite() ? wp_get_active_network_plugins() : false; foreach ( $active_plugins as $plugin ) { if ( ! validate_file( $plugin ) // $plugin must validate as file && '.php' == substr( $plugin, -4 ) // $plugin must end with '.php' && file_exists( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist // not already included as a network plugin && ( ! $network_plugins || ! in_array( WP_PLUGIN_DIR . '/' . $plugin, $network_plugins ) ) ) $plugins[] = WP_PLUGIN_DIR . '/' . $plugin; } return $plugins; } /** * Set internal encoding. * * In most cases the default internal encoding is latin1, which is * of no use, since we want to use the `mb_` functions for `utf-8` strings. * * @since 3.0.0 * @access private */ function wp_set_internal_encoding() { if ( function_exists( 'mb_internal_encoding' ) ) { $charset = get_option( 'blog_charset' ); if ( ! $charset || ! @mb_internal_encoding( $charset ) ) mb_internal_encoding( 'UTF-8' ); } } /** * Add magic quotes to `$_GET`, `$_POST`, `$_COOKIE`, and `$_SERVER`. * * Also forces `$_REQUEST` to be `$_GET + $_POST`. If `$_SERVER`, * `$_COOKIE`, or `$_ENV` are needed, use those superglobals directly. * * @since 3.0.0 * @access private */ function wp_magic_quotes() { // If already slashed, strip. if ( get_magic_quotes_gpc() ) { $_GET = stripslashes_deep( $_GET ); $_POST = stripslashes_deep( $_POST ); $_COOKIE = stripslashes_deep( $_COOKIE ); } // Escape with wpdb. $_GET = add_magic_quotes( $_GET ); $_POST = add_magic_quotes( $_POST ); $_COOKIE = add_magic_quotes( $_COOKIE ); $_SERVER = add_magic_quotes( $_SERVER ); // Force REQUEST to be GET + POST. $_REQUEST = array_merge( $_GET, $_POST ); } /** * Runs just before PHP shuts down execution. * * @since 1.2.0 * @access private */ function shutdown_action_hook() { /** * Fires just before PHP shuts down execution. * * @since 1.2.0 */ do_action( 'shutdown' ); wp_cache_close(); } /** * Copy an object. * * @since 2.7.0 * @deprecated 3.2.0 * * @param object $object The object to clone. * @return object The cloned object. */ function wp_clone( $object ) { // Use parens for clone to accommodate PHP 4. See #17880 return clone( $object ); } /** * Whether the current request is for an administrative interface page. * * Does not check if the user is an administrator; {@see current_user_can()} * for checking roles and capabilities. * * @since 1.5.1 * * @global WP_Screen $current_screen * * @return bool True if inside WordPress administration interface, false otherwise. */ function is_admin() { if ( isset( $GLOBALS['current_screen'] ) ) return $GLOBALS['current_screen']->in_admin(); elseif ( defined( 'WP_ADMIN' ) ) return WP_ADMIN; return false; } /** * Whether the current request is for a site's admininstrative interface. * * e.g. `/wp-admin/` * * Does not check if the user is an administrator; {@see current_user_can()} * for checking roles and capabilities. * * @since 3.1.0 * * @global WP_Screen $current_screen * * @return bool True if inside WordPress blog administration pages. */ function is_blog_admin() { if ( isset( $GLOBALS['current_screen'] ) ) return $GLOBALS['current_screen']->in_admin( 'site' ); elseif ( defined( 'WP_BLOG_ADMIN' ) ) return WP_BLOG_ADMIN; return false; } /** * Whether the current request is for the network administrative interface. * * e.g. `/wp-admin/network/` * * Does not check if the user is an administrator; {@see current_user_can()} * for checking roles and capabilities. * * @since 3.1.0 * * @global WP_Screen $current_screen * * @return bool True if inside WordPress network administration pages. */ function is_network_admin() { if ( isset( $GLOBALS['current_screen'] ) ) return $GLOBALS['current_screen']->in_admin( 'network' ); elseif ( defined( 'WP_NETWORK_ADMIN' ) ) return WP_NETWORK_ADMIN; return false; } /** * Whether the current request is for a user admin screen. * * e.g. `/wp-admin/user/` * * Does not inform on whether the user is an admin! Use capability * checks to tell if the user should be accessing a section or not * {@see current_user_can()}. * * @since 3.1.0 * * @global WP_Screen $current_screen * * @return bool True if inside WordPress user administration pages. */ function is_user_admin() { if ( isset( $GLOBALS['current_screen'] ) ) return $GLOBALS['current_screen']->in_admin( 'user' ); elseif ( defined( 'WP_USER_ADMIN' ) ) return WP_USER_ADMIN; return false; } /** * If Multisite is enabled. * * @since 3.0.0 * * @return bool True if Multisite is enabled, false otherwise. */ function is_multisite() { if ( defined( 'MULTISITE' ) ) return MULTISITE; if ( defined( 'SUBDOMAIN_INSTALL' ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) ) return true; return false; } /** * Retrieve the current site ID. * * @since 3.1.0 * * @global int $blog_id * * @return int Site ID. */ function get_current_blog_id() { global $blog_id; return absint($blog_id); } /** * Attempt an early load of translations. * * Used for errors encountered during the initial loading process, before * the locale has been properly detected and loaded. * * Designed for unusual load sequences (like setup-config.php) or for when * the script will then terminate with an error, otherwise there is a risk * that a file can be double-included. * * @since 3.4.0 * @access private * * @global string $text_direction * @global WP_Locale $wp_locale The WordPress date and time locale object. * * @staticvar bool $loaded */ function wp_load_translations_early() { global $text_direction, $wp_locale; static $loaded = false; if ( $loaded ) return; $loaded = true; if ( function_exists( 'did_action' ) && did_action( 'init' ) ) return; // We need $wp_local_package require ABSPATH . WPINC . '/version.php'; // Translation and localization require_once ABSPATH . WPINC . '/pomo/mo.php'; require_once ABSPATH . WPINC . '/l10n.php'; require_once ABSPATH . WPINC . '/locale.php'; // General libraries require_once ABSPATH . WPINC . '/plugin.php'; $locales = $locations = array(); while ( true ) { if ( defined( 'WPLANG' ) ) { if ( '' == WPLANG ) break; $locales[] = WPLANG; } if ( isset( $wp_local_package ) ) $locales[] = $wp_local_package; if ( ! $locales ) break; if ( defined( 'WP_LANG_DIR' ) && @is_dir( WP_LANG_DIR ) ) $locations[] = WP_LANG_DIR; if ( defined( 'WP_CONTENT_DIR' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) ) $locations[] = WP_CONTENT_DIR . '/languages'; if ( @is_dir( ABSPATH . 'wp-content/languages' ) ) $locations[] = ABSPATH . 'wp-content/languages'; if ( @is_dir( ABSPATH . WPINC . '/languages' ) ) $locations[] = ABSPATH . WPINC . '/languages'; if ( ! $locations ) break; $locations = array_unique( $locations ); foreach ( $locales as $locale ) { foreach ( $locations as $location ) { if ( file_exists( $location . '/' . $locale . '.mo' ) ) { load_textdomain( 'default', $location . '/' . $locale . '.mo' ); if ( defined( 'WP_SETUP_CONFIG' ) && file_exists( $location . '/admin-' . $locale . '.mo' ) ) load_textdomain( 'default', $location . '/admin-' . $locale . '.mo' ); break 2; } } } break; } $wp_locale = new WP_Locale(); } /** * Check or set whether WordPress is in "installation" mode. * * If the `WP_INSTALLING` constant is defined during the bootstrap, `wp_installing()` will default to `true`. * * @since 4.4.0 * * @staticvar bool $installing * * @param bool $is_installing Optional. True to set WP into Installing mode, false to turn Installing mode off. * Omit this parameter if you only want to fetch the current status. * @return bool True if WP is installing, otherwise false. When a `$is_installing` is passed, the function will * report whether WP was in installing mode prior to the change to `$is_installing`. */ function wp_installing( $is_installing = null ) { static $installing = null; // Support for the `WP_INSTALLING` constant, defined before WP is loaded. if ( is_null( $installing ) ) { $installing = defined( 'WP_INSTALLING' ) && WP_INSTALLING; } if ( ! is_null( $is_installing ) ) { $old_installing = $installing; $installing = $is_installing; return (bool) $old_installing; } return (bool) $installing; }