--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/load.php Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,785 @@
+<?php
+/**
+ * These functions are needed to load WordPress.
+ *
+ * @internal This file must be parsable by PHP4.
+ *
+ * @package WordPress
+ */
+
+/**
+ * Turn register globals off.
+ *
+ * @access private
+ * @since 2.1.0
+ * @return null Will return null if register_globals PHP directive was disabled
+ */
+function wp_unregister_GLOBALS() {
+ if ( !ini_get( 'register_globals' ) )
+ return;
+
+ if ( isset( $_REQUEST['GLOBALS'] ) )
+ die( 'GLOBALS overwrite attempt detected' );
+
+ // Variables that shouldn't be unset
+ $no_unset = array( 'GLOBALS', '_GET', '_POST', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES', 'table_prefix' );
+
+ $input = array_merge( $_GET, $_POST, $_COOKIE, $_SERVER, $_ENV, $_FILES, isset( $_SESSION ) && is_array( $_SESSION ) ? $_SESSION : array() );
+ foreach ( $input as $k => $v )
+ if ( !in_array( $k, $no_unset ) && isset( $GLOBALS[$k] ) ) {
+ unset( $GLOBALS[$k] );
+ }
+}
+
+/**
+ * Fix $_SERVER variables for various setups.
+ *
+ * @access private
+ * @since 3.0.0
+ */
+function wp_fix_server_vars() {
+ global $PHP_SELF;
+
+ $default_server_values = array(
+ 'SERVER_SOFTWARE' => '',
+ 'REQUEST_URI' => '',
+ );
+
+ $_SERVER = array_merge( $default_server_values, $_SERVER );
+
+ // Fix for IIS when running with PHP ISAPI
+ if ( empty( $_SERVER['REQUEST_URI'] ) || ( php_sapi_name() != 'cgi-fcgi' && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) {
+
+ // IIS Mod-Rewrite
+ if ( isset( $_SERVER['HTTP_X_ORIGINAL_URL'] ) ) {
+ $_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];
+ }
+ // IIS Isapi_Rewrite
+ else if ( isset( $_SERVER['HTTP_X_REWRITE_URL'] ) ) {
+ $_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];
+ } else {
+ // Use ORIG_PATH_INFO if there is no PATH_INFO
+ if ( !isset( $_SERVER['PATH_INFO'] ) && isset( $_SERVER['ORIG_PATH_INFO'] ) )
+ $_SERVER['PATH_INFO'] = $_SERVER['ORIG_PATH_INFO'];
+
+ // Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)
+ if ( isset( $_SERVER['PATH_INFO'] ) ) {
+ if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] )
+ $_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
+ else
+ $_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];
+ }
+
+ // Append the query string if it exists and isn't null
+ if ( ! empty( $_SERVER['QUERY_STRING'] ) ) {
+ $_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
+ }
+ }
+ }
+
+ // Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests
+ if ( isset( $_SERVER['SCRIPT_FILENAME'] ) && ( strpos( $_SERVER['SCRIPT_FILENAME'], 'php.cgi' ) == strlen( $_SERVER['SCRIPT_FILENAME'] ) - 7 ) )
+ $_SERVER['SCRIPT_FILENAME'] = $_SERVER['PATH_TRANSLATED'];
+
+ // Fix for Dreamhost and other PHP as CGI hosts
+ if ( strpos( $_SERVER['SCRIPT_NAME'], 'php.cgi' ) !== false )
+ unset( $_SERVER['PATH_INFO'] );
+
+ // Fix empty PHP_SELF
+ $PHP_SELF = $_SERVER['PHP_SELF'];
+ if ( empty( $PHP_SELF ) )
+ $_SERVER['PHP_SELF'] = $PHP_SELF = preg_replace( '/(\?.*)?$/', '', $_SERVER["REQUEST_URI"] );
+}
+
+/**
+ * Check for the required PHP version, and the MySQL extension or a database drop-in.
+ *
+ * Dies if requirements are not met.
+ *
+ * @access private
+ * @since 3.0.0
+ */
+function wp_check_php_mysql_versions() {
+ global $required_php_version, $wp_version;
+ $php_version = phpversion();
+ if ( version_compare( $required_php_version, $php_version, '>' ) ) {
+ wp_load_translations_early();
+ die( sprintf( __( 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.' ), $php_version, $wp_version, $required_php_version ) );
+ }
+
+ if ( ! extension_loaded( 'mysql' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) {
+ wp_load_translations_early();
+ die( __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ) );
+ }
+}
+
+/**
+ * Don't load all of WordPress when handling a favicon.ico request.
+ * Instead, send the headers for a zero-length favicon and bail.
+ *
+ * @since 3.0.0
+ */
+function wp_favicon_request() {
+ if ( '/favicon.ico' == $_SERVER['REQUEST_URI'] ) {
+ header('Content-Type: image/vnd.microsoft.icon');
+ header('Content-Length: 0');
+ exit;
+ }
+}
+
+/**
+ * Dies with a maintenance message when conditions are met.
+ *
+ * Checks for a file in the WordPress root directory named ".maintenance".
+ * This file will contain the variable $upgrading, set to the time the file
+ * was created. If the file was created less than 10 minutes ago, WordPress
+ * enters maintenance mode and displays a message.
+ *
+ * The default message can be replaced by using a drop-in (maintenance.php in
+ * the wp-content directory).
+ *
+ * @access private
+ * @since 3.0.0
+ */
+function wp_maintenance() {
+ if ( !file_exists( ABSPATH . '.maintenance' ) || defined( 'WP_INSTALLING' ) )
+ return;
+
+ global $upgrading;
+
+ include( ABSPATH . '.maintenance' );
+ // If the $upgrading timestamp is older than 10 minutes, don't die.
+ if ( ( time() - $upgrading ) >= 600 )
+ return;
+
+ if ( file_exists( WP_CONTENT_DIR . '/maintenance.php' ) ) {
+ require_once( WP_CONTENT_DIR . '/maintenance.php' );
+ die();
+ }
+
+ wp_load_translations_early();
+
+ $protocol = $_SERVER["SERVER_PROTOCOL"];
+ if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol )
+ $protocol = 'HTTP/1.0';
+ header( "$protocol 503 Service Unavailable", true, 503 );
+ header( 'Content-Type: text/html; charset=utf-8' );
+ header( 'Retry-After: 600' );
+?>
+ <!DOCTYPE html>
+ <html xmlns="http://www.w3.org/1999/xhtml"<?php if ( is_rtl() ) echo ' dir="rtl"'; ?>>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title><?php _e( 'Maintenance' ); ?></title>
+
+ </head>
+ <body>
+ <h1><?php _e( 'Briefly unavailable for scheduled maintenance. Check back in a minute.' ); ?></h1>
+ </body>
+ </html>
+<?php
+ die();
+}
+
+/**
+ * PHP 5 standard microtime start capture.
+ *
+ * @access private
+ * @since 0.71
+ * @global float $timestart Seconds from when function is called.
+ * @return bool Always returns true.
+ */
+function timer_start() {
+ global $timestart;
+ $timestart = microtime( true );
+ return true;
+}
+
+/**
+ * Return and/or display the time from the page start to when function is called.
+ *
+ * You can get the results and print them by doing:
+ * <code>
+ * $nTimePageTookToExecute = timer_stop();
+ * echo $nTimePageTookToExecute;
+ * </code>
+ *
+ * Or instead, you can do:
+ * <code>
+ * timer_stop(1);
+ * </code>
+ * which will do what the above does. If you need the result, you can assign it to a variable, but
+ * in most cases, you only need to echo it.
+ *
+ * @since 0.71
+ * @global float $timestart Seconds from when timer_start() is called
+ * @global float $timeend Seconds from when function is called
+ *
+ * @param int $display Use '0' or null to not echo anything and 1 to echo the total time
+ * @param int $precision The amount of digits from the right of the decimal to display. Default is 3.
+ * @return float The "second.microsecond" finished time calculation
+ */
+function timer_stop( $display = 0, $precision = 3 ) { // if called like timer_stop(1), will echo $timetotal
+ global $timestart, $timeend;
+ $timeend = microtime( true );
+ $timetotal = $timeend - $timestart;
+ $r = ( function_exists( 'number_format_i18n' ) ) ? number_format_i18n( $timetotal, $precision ) : number_format( $timetotal, $precision );
+ if ( $display )
+ echo $r;
+ return $r;
+}
+
+/**
+ * Sets PHP error handling and handles WordPress debug mode.
+ *
+ * Uses three constants: WP_DEBUG, WP_DEBUG_DISPLAY, and WP_DEBUG_LOG. All three can be
+ * defined in wp-config.php. Example: <code> define( 'WP_DEBUG', true ); </code>
+ *
+ * WP_DEBUG_DISPLAY and WP_DEBUG_LOG perform no function unless WP_DEBUG is true.
+ * WP_DEBUG defaults to false.
+ *
+ * When WP_DEBUG is true, all PHP notices are reported. WordPress will also display
+ * notices, including one 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.
+ *
+ * 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 wp-content/debug.log.
+ * WP_DEBUG_LOG defaults to false.
+ *
+ * Errors are never displayed for XML-RPC requests.
+ *
+ * @access private
+ * @since 3.0.0
+ */
+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' ) )
+ ini_set( 'display_errors', 0 );
+}
+
+/**
+ * Sets the location of the language directory.
+ *
+ * To set directory manually, define <code>WP_LANG_DIR</code> in wp-config.php.
+ *
+ * If the language directory exists within WP_CONTENT_DIR, that is used.
+ * Otherwise if the language directory exists within WPINC, that's used.
+ * Finally, if neither of the preceding directories are found,
+ * WP_CONTENT_DIR/languages is used.
+ *
+ * The WP_LANG_DIR constant was introduced in 2.1.0.
+ *
+ * @access private
+ * @since 3.0.0
+ */
+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') ) {
+ define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' ); // no leading slash, no trailing slash, full path, not relative to ABSPATH
+ if ( !defined( 'LANGDIR' ) ) {
+ // Old static relative path maintained for limited backwards compatibility - won't work in some cases
+ define( 'LANGDIR', 'wp-content/languages' );
+ }
+ } else {
+ define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' ); // no leading slash, no trailing slash, full path, not relative to ABSPATH
+ if ( !defined( 'LANGDIR' ) ) {
+ // Old relative path maintained for backwards compatibility
+ define( 'LANGDIR', WPINC . '/languages' );
+ }
+ }
+ }
+}
+
+/**
+ * Load the correct database class file.
+ *
+ * This function is used to load the database class file either at runtime or by
+ * wp-admin/setup-config.php. We must globalize $wpdb to ensure that it is
+ * defined globally by the inline code in wp-db.php.
+ *
+ * @since 2.5.0
+ * @global $wpdb WordPress Database Object
+ */
+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;
+
+ $wpdb = new wpdb( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST );
+}
+
+/**
+ * Sets the database table prefix and the format specifiers for database table columns.
+ *
+ * Columns not listed here default to %s.
+ *
+ * @see wpdb::$field_types Since 2.8.0
+ * @see wpdb::prepare()
+ * @see wpdb::insert()
+ * @see wpdb::update()
+ * @see wpdb::set_prefix()
+ *
+ * @access private
+ * @since 3.0.0
+ */
+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( $prefix ) ) {
+ wp_load_translations_early();
+ wp_die( __( '<strong>ERROR</strong>: <code>$table_prefix</code> in <code>wp-config.php</code> can only contain numbers, letters, and underscores.' ) );
+ }
+}
+
+/**
+ * Access/Modify private global variable $_wp_using_ext_object_cache
+ *
+ * Toggle $_wp_using_ext_object_cache on and off without directly touching global
+ *
+ * @since 3.7.0
+ *
+ * @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;
+}
+
+/**
+ * Starts 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.
+ *
+ * @access private
+ * @since 3.0.0
+ */
+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;
+ } else if ( ! 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', 'site-transient', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss', 'global-posts', 'blog-id-cache' ) );
+ wp_cache_add_non_persistent_groups( array( 'comment', 'counts', 'plugins' ) );
+ }
+}
+
+/**
+ * Redirects to the installer if WordPress is not installed.
+ *
+ * Dies with an error message when multisite is enabled.
+ *
+ * @access private
+ * @since 3.0.0
+ */
+function wp_not_installed() {
+ if ( is_multisite() ) {
+ if ( ! is_blog_installed() && ! defined( 'WP_INSTALLING' ) )
+ wp_die( __( 'The site you have requested is not installed properly. Please contact the system administrator.' ) );
+ } elseif ( ! is_blog_installed() && false === strpos( $_SERVER['PHP_SELF'], 'install.php' ) && !defined( 'WP_INSTALLING' ) ) {
+ 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();
+ }
+}
+
+/**
+ * Returns array of must-use plugin files to be included in global scope.
+ *
+ * The default directory is wp-content/mu-plugins. To change the default directory
+ * manually, define <code>WPMU_PLUGIN_DIR</code> and <code>WPMU_PLUGIN_URL</code>
+ * in wp-config.php.
+ *
+ * @access private
+ * @since 3.0.0
+ * @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;
+}
+
+/**
+ * Returns array of plugin files to be included in global scope.
+ *
+ * The default directory is wp-content/plugins. To change the default directory
+ * manually, define <code>WP_PLUGIN_DIR</code> and <code>WP_PLUGIN_URL</code>
+ * in wp-config.php.
+ *
+ * @access private
+ * @since 3.0.0
+ * @return array Files to include
+ */
+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 ) || defined( '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;
+}
+
+/**
+ * Sets internal encoding using mb_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.
+ *
+ * @access private
+ * @since 3.0.0
+ */
+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.
+ *
+ * @access private
+ * @since 3.0.0
+ */
+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.
+ *
+ * @access private
+ * @since 1.2.0
+ */
+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
+ *
+ * @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 a network or blog admin page
+ *
+ * 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.
+ *
+ * @since 1.5.1
+ *
+ * @return bool True if inside WordPress administration pages.
+ */
+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 blog admin screen /wp-admin/
+ *
+ * Does not inform on whether the user is a blog admin! Use capability checks to
+ * tell if the user should be accessing a section or not.
+ *
+ * @since 3.1.0
+ *
+ * @return bool True if inside WordPress network 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 a network admin screen /wp-admin/network/
+ *
+ * Does not inform on whether the user is a network admin! Use capability checks to
+ * tell if the user should be accessing a section or not.
+ *
+ * @since 3.1.0
+ *
+ * @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 /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.
+ *
+ * @since 3.1.0
+ *
+ * @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;
+}
+
+/**
+ * Whether Multisite support 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 blog id
+ *
+ * @since 3.1.0
+ *
+ * @return int Blog id
+ */
+function get_current_blog_id() {
+ global $blog_id;
+ return absint($blog_id);
+}
+
+/**
+ * Attempts 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
+ */
+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();
+}