3 * Used to set up and fix common variables and include
4 * the WordPress procedural and class library.
6 * Allows for some configuration in wp-config.php (see default-constants.php)
12 * Stores the location of the WordPress directory of functions, classes, and core content.
16 define( 'WPINC', 'wp-includes' );
18 // Include files required for initialization.
19 require( ABSPATH . WPINC . '/load.php' );
20 require( ABSPATH . WPINC . '/default-constants.php' );
21 require( ABSPATH . WPINC . '/version.php' );
23 // Set initial default constants including WP_MEMORY_LIMIT, WP_DEBUG, WP_CONTENT_DIR and WP_CACHE.
24 wp_initial_constants( );
26 // Disable magic quotes at runtime. Magic quotes are added using wpdb later in wp-settings.php.
27 set_magic_quotes_runtime( 0 );
28 @ini_set( 'magic_quotes_sybase', 0 );
30 // Set default timezone in PHP 5.
31 if ( function_exists( 'date_default_timezone_set' ) )
32 date_default_timezone_set( 'UTC' );
34 // Turn register_globals off.
35 wp_unregister_GLOBALS();
37 // Ensure these global variables do not exist so they do not interfere with WordPress.
38 unset( $wp_filter, $cache_lastcommentmodified, $cache_lastpostdate );
40 // Standardize $_SERVER variables across setups.
43 // Check for the required PHP version and for the MySQL extension or a database drop-in.
44 wp_check_php_mysql_versions();
46 // Check if we have recieved a request due to missing favicon.ico
49 // Check if we're in maintenance mode.
52 // Start loading timer.
55 // Check if we're in WP_DEBUG mode.
58 // For an advanced caching plugin to use. Uses a static drop-in because you would only want one.
60 WP_DEBUG ? include( WP_CONTENT_DIR . '/advanced-cache.php' ) : @include( WP_CONTENT_DIR . '/advanced-cache.php' );
62 // Define WP_LANG_DIR if not set.
65 // Load early WordPress files.
66 require( ABSPATH . WPINC . '/compat.php' );
67 require( ABSPATH . WPINC . '/functions.php' );
68 require( ABSPATH . WPINC . '/classes.php' );
70 // Include the wpdb class, or a db.php database drop-in if present.
73 // Set the database table prefix and the format specifiers for database table columns.
76 // Start the WordPress object cache, or an external object cache if the drop-in is present.
77 wp_start_object_cache();
79 // Load early WordPress files.
80 require( ABSPATH . WPINC . '/plugin.php' );
81 require( ABSPATH . WPINC . '/default-filters.php' );
82 require( ABSPATH . WPINC . '/pomo/mo.php' );
84 // Initialize multisite if enabled.
85 if ( is_multisite() ) {
86 require( ABSPATH . WPINC . '/ms-blogs.php' );
87 require( ABSPATH . WPINC . '/ms-settings.php' );
88 } elseif ( ! defined( 'MULTISITE' ) ) {
89 define( 'MULTISITE', false );
92 // Stop most of WordPress from being loaded if we just want the basics.
96 // Load the l18n library.
97 require( ABSPATH . WPINC . '/l10n.php' );
99 // Run the installer if WordPress is not installed.
102 // Load most of WordPress.
103 require( ABSPATH . WPINC . '/formatting.php' );
104 require( ABSPATH . WPINC . '/capabilities.php' );
105 require( ABSPATH . WPINC . '/query.php' );
106 require( ABSPATH . WPINC . '/theme.php' );
107 require( ABSPATH . WPINC . '/user.php' );
108 require( ABSPATH . WPINC . '/meta.php' );
109 require( ABSPATH . WPINC . '/general-template.php' );
110 require( ABSPATH . WPINC . '/link-template.php' );
111 require( ABSPATH . WPINC . '/author-template.php' );
112 require( ABSPATH . WPINC . '/post.php' );
113 require( ABSPATH . WPINC . '/post-template.php' );
114 require( ABSPATH . WPINC . '/category.php' );
115 require( ABSPATH . WPINC . '/category-template.php' );
116 require( ABSPATH . WPINC . '/comment.php' );
117 require( ABSPATH . WPINC . '/comment-template.php' );
118 require( ABSPATH . WPINC . '/rewrite.php' );
119 require( ABSPATH . WPINC . '/feed.php' );
120 require( ABSPATH . WPINC . '/bookmark.php' );
121 require( ABSPATH . WPINC . '/bookmark-template.php' );
122 require( ABSPATH . WPINC . '/kses.php' );
123 require( ABSPATH . WPINC . '/cron.php' );
124 require( ABSPATH . WPINC . '/deprecated.php' );
125 require( ABSPATH . WPINC . '/script-loader.php' );
126 require( ABSPATH . WPINC . '/taxonomy.php' );
127 require( ABSPATH . WPINC . '/update.php' );
128 require( ABSPATH . WPINC . '/canonical.php' );
129 require( ABSPATH . WPINC . '/shortcodes.php' );
130 require( ABSPATH . WPINC . '/media.php' );
131 require( ABSPATH . WPINC . '/http.php' );
132 require( ABSPATH . WPINC . '/class-http.php' );
133 require( ABSPATH . WPINC . '/widgets.php' );
134 require( ABSPATH . WPINC . '/nav-menu.php' );
135 require( ABSPATH . WPINC . '/nav-menu-template.php' );
137 // Load multisite-specific files.
138 if ( is_multisite() ) {
139 require( ABSPATH . WPINC . '/ms-functions.php' );
140 require( ABSPATH . WPINC . '/ms-default-filters.php' );
141 require( ABSPATH . WPINC . '/ms-deprecated.php' );
144 // Define constants that rely on the API to obtain the default value.
145 // Define must-use plugin directory constants, which may be overridden in the sunrise.php drop-in.
146 wp_plugin_directory_constants( );
148 // Load must-use plugins.
149 foreach ( wp_get_mu_plugins() as $mu_plugin ) {
150 include_once( $mu_plugin );
154 do_action( 'muplugins_loaded' );
156 if ( is_multisite() )
157 ms_cookie_constants( );
159 // Define constants after multisite is loaded. Cookie-related constants may be overridden in ms_network_cookies().
160 wp_cookie_constants( );
162 // Define and enforce our SSL constants
165 // Create common globals.
166 require( ABSPATH . WPINC . '/vars.php' );
168 // Make taxonomies and posts available to plugins and themes.
169 // @plugin authors: warning: these get registered again on the init hook.
170 create_initial_taxonomies();
171 create_initial_post_types();
173 // Load active plugins.
174 foreach ( wp_get_active_and_valid_plugins() as $plugin )
175 include_once( $plugin );
178 // Load pluggable functions.
179 require( ABSPATH . WPINC . '/pluggable.php' );
180 require( ABSPATH . WPINC . '/pluggable-deprecated.php' );
182 // Set internal encoding.
183 wp_set_internal_encoding();
185 // Run wp_cache_postload() if object cache is enabled and the function exists.
186 if ( WP_CACHE && function_exists( 'wp_cache_postload' ) )
189 do_action( 'plugins_loaded' );
191 // Define constants which affect functionality if not already defined.
192 wp_functionality_constants( );
194 // Add magic quotes and set up $_REQUEST ( $_GET + $_POST )
197 do_action( 'sanitize_comment_cookies' );
200 * WordPress Query object
201 * @global object $wp_the_query
204 $wp_the_query =& new WP_Query();
207 * Holds the reference to @see $wp_the_query
208 * Use this global for WordPress queries
209 * @global object $wp_query
212 $wp_query =& $wp_the_query;
215 * Holds the WordPress Rewrite object for creating pretty URLs
216 * @global object $wp_rewrite
219 $wp_rewrite =& new WP_Rewrite();
229 * WordPress Widget Factory Object
230 * @global object $wp_widget_factory
233 $wp_widget_factory =& new WP_Widget_Factory();
235 do_action( 'setup_theme' );
237 // Define the template related constants.
238 wp_templating_constants( );
240 // Load the default text localization domain.
241 load_default_textdomain();
243 // Find the blog locale.
244 $locale = get_locale();
245 $locale_file = WP_LANG_DIR . "/$locale.php";
246 if ( is_readable( $locale_file ) )
247 require( $locale_file );
250 // Pull in locale data after loading text domain.
251 require( ABSPATH . WPINC . '/locale.php' );
254 * WordPress Locale object for loading locale domain date and various strings.
255 * @global object $wp_locale
258 $wp_locale =& new WP_Locale();
260 // Load the functions for the active theme, for both parent and child theme if applicable.
261 if ( TEMPLATEPATH !== STYLESHEETPATH && file_exists( STYLESHEETPATH . '/functions.php' ) )
262 include( STYLESHEETPATH . '/functions.php' );
263 if ( file_exists( TEMPLATEPATH . '/functions.php' ) )
264 include( TEMPLATEPATH . '/functions.php' );
266 do_action( 'after_setup_theme' );
268 // Load any template functions the theme supports.
269 require_if_theme_supports( 'post-thumbnails', ABSPATH . WPINC . '/post-thumbnail-template.php' );
271 register_shutdown_function( 'shutdown_action_hook' );
273 // Set up current user.
277 * Most of WP is loaded at this stage, and the user is authenticated. WP continues
278 * to load on the init hook that follows (e.g. widgets), and many plugins instantiate
279 * themselves on it for all sorts of reasons (e.g. they need a user, a taxonomy, etc.).
281 * If you wish to plug an action once WP is loaded, use the wp_loaded hook below.
286 if ( is_multisite() ) {
287 if ( true !== ( $file = ms_site_check() ) ) {
295 * This hook is fired once WP, all plugins, and the theme are fully loaded and instantiated.
297 * AJAX requests should use wp-admin/admin-ajax.php. admin-ajax.php can handle requests for
298 * users not logged in.
300 * @link http://codex.wordpress.org/AJAX_in_Plugins
304 do_action('wp_loaded');