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   1  <?php
   2  /**
   3   * Used to set up and fix common variables and include
   4   * the WordPress procedural and class library.
   5   *
   6   * Allows for some configuration in wp-config.php (see default-constants.php)
   7   *
   8   * @package WordPress
   9   */
  10  
  11  /**
  12   * Stores the location of the WordPress directory of functions, classes, and core content.
  13   *
  14   * @since 1.0.0
  15   */
  16  define( 'WPINC', 'wp-includes' );
  17  
  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' );
  22  
  23  // Set initial default constants including WP_MEMORY_LIMIT, WP_MAX_MEMORY_LIMIT, WP_DEBUG, WP_CONTENT_DIR and WP_CACHE.
  24  wp_initial_constants( );
  25  
  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 );
  29  
  30  // Set default timezone in PHP 5.
  31  if ( function_exists( 'date_default_timezone_set' ) )
  32      date_default_timezone_set( 'UTC' );
  33  
  34  // Turn register_globals off.
  35  wp_unregister_GLOBALS();
  36  
  37  // Ensure these global variables do not exist so they do not interfere with WordPress.
  38  unset( $wp_filter, $cache_lastcommentmodified );
  39  
  40  // Standardize $_SERVER variables across setups.
  41  wp_fix_server_vars();
  42  
  43  // Check for the required PHP version and for the MySQL extension or a database drop-in.
  44  wp_check_php_mysql_versions();
  45  
  46  // Check if we have received a request due to missing favicon.ico
  47  wp_favicon_request();
  48  
  49  // Check if we're in maintenance mode.
  50  wp_maintenance();
  51  
  52  // Start loading timer.
  53  timer_start();
  54  
  55  // Check if we're in WP_DEBUG mode.
  56  wp_debug_mode();
  57  
  58  // For an advanced caching plugin to use. Uses a static drop-in because you would only want one.
  59  if ( WP_CACHE )
  60      WP_DEBUG ? include( WP_CONTENT_DIR . '/advanced-cache.php' ) : @include( WP_CONTENT_DIR . '/advanced-cache.php' );
  61  
  62  // Define WP_LANG_DIR if not set.
  63  wp_set_lang_dir();
  64  
  65  // Load early WordPress files.
  66  require( ABSPATH . WPINC . '/compat.php' );
  67  require( ABSPATH . WPINC . '/functions.php' );
  68  require( ABSPATH . WPINC . '/class-wp.php' );
  69  require( ABSPATH . WPINC . '/class-wp-error.php' );
  70  require( ABSPATH . WPINC . '/plugin.php' );
  71  
  72  // Include the wpdb class and, if present, a db.php database drop-in.
  73  require_wp_db();
  74  
  75  // Set the database table prefix and the format specifiers for database table columns.
  76  wp_set_wpdb_vars();
  77  
  78  // Start the WordPress object cache, or an external object cache if the drop-in is present.
  79  wp_start_object_cache();
  80  
  81  // Load early WordPress files.
  82  require( ABSPATH . WPINC . '/default-filters.php' );
  83  require( ABSPATH . WPINC . '/pomo/mo.php' );
  84  
  85  // Initialize multisite if enabled.
  86  if ( is_multisite() ) {
  87      require( ABSPATH . WPINC . '/ms-blogs.php' );
  88      require( ABSPATH . WPINC . '/ms-settings.php' );
  89  } elseif ( ! defined( 'MULTISITE' ) ) {
  90      define( 'MULTISITE', false );
  91  }
  92  
  93  // Stop most of WordPress from being loaded if we just want the basics.
  94  if ( SHORTINIT )
  95      return false;
  96  
  97  // Load the l18n library.
  98  require( ABSPATH . WPINC . '/l10n.php' );
  99  
 100  // Run the installer if WordPress is not installed.
 101  wp_not_installed();
 102  
 103  // Load most of WordPress.
 104  require( ABSPATH . WPINC . '/class-wp-walker.php' );
 105  require( ABSPATH . WPINC . '/class-wp-ajax-response.php' );
 106  require( ABSPATH . WPINC . '/formatting.php' );
 107  require( ABSPATH . WPINC . '/capabilities.php' );
 108  require( ABSPATH . WPINC . '/query.php' );
 109  require( ABSPATH . WPINC . '/theme.php' );
 110  require( ABSPATH . WPINC . '/user.php' );
 111  require( ABSPATH . WPINC . '/meta.php' );
 112  require( ABSPATH . WPINC . '/general-template.php' );
 113  require( ABSPATH . WPINC . '/link-template.php' );
 114  require( ABSPATH . WPINC . '/author-template.php' );
 115  require( ABSPATH . WPINC . '/post.php' );
 116  require( ABSPATH . WPINC . '/post-template.php' );
 117  require( ABSPATH . WPINC . '/category.php' );
 118  require( ABSPATH . WPINC . '/category-template.php' );
 119  require( ABSPATH . WPINC . '/comment.php' );
 120  require( ABSPATH . WPINC . '/comment-template.php' );
 121  require( ABSPATH . WPINC . '/rewrite.php' );
 122  require( ABSPATH . WPINC . '/feed.php' );
 123  require( ABSPATH . WPINC . '/bookmark.php' );
 124  require( ABSPATH . WPINC . '/bookmark-template.php' );
 125  require( ABSPATH . WPINC . '/kses.php' );
 126  require( ABSPATH . WPINC . '/cron.php' );
 127  require( ABSPATH . WPINC . '/deprecated.php' );
 128  require( ABSPATH . WPINC . '/script-loader.php' );
 129  require( ABSPATH . WPINC . '/taxonomy.php' );
 130  require( ABSPATH . WPINC . '/update.php' );
 131  require( ABSPATH . WPINC . '/canonical.php' );
 132  require( ABSPATH . WPINC . '/shortcodes.php' );
 133  require( ABSPATH . WPINC . '/media.php' );
 134  require( ABSPATH . WPINC . '/http.php' );
 135  require( ABSPATH . WPINC . '/class-http.php' );
 136  require( ABSPATH . WPINC . '/widgets.php' );
 137  require( ABSPATH . WPINC . '/nav-menu.php' );
 138  require( ABSPATH . WPINC . '/nav-menu-template.php' );
 139  require( ABSPATH . WPINC . '/admin-bar.php' );
 140  
 141  // Load multisite-specific files.
 142  if ( is_multisite() ) {
 143      require( ABSPATH . WPINC . '/ms-functions.php' );
 144      require( ABSPATH . WPINC . '/ms-default-filters.php' );
 145      require( ABSPATH . WPINC . '/ms-deprecated.php' );
 146  }
 147  
 148  // Define constants that rely on the API to obtain the default value.
 149  // Define must-use plugin directory constants, which may be overridden in the sunrise.php drop-in.
 150  wp_plugin_directory_constants( );
 151  
 152  // Load must-use plugins.
 153  foreach ( wp_get_mu_plugins() as $mu_plugin ) {
 154      include_once( $mu_plugin );
 155  }
 156  unset( $mu_plugin );
 157  
 158  // Load network activated plugins.
 159  if ( is_multisite() ) {
 160      foreach( wp_get_active_network_plugins() as $network_plugin ) {
 161          include_once( $network_plugin );
 162      }
 163      unset( $network_plugin );
 164  }
 165  
 166  do_action( 'muplugins_loaded' );
 167  
 168  if ( is_multisite() )
 169      ms_cookie_constants(  );
 170  
 171  // Define constants after multisite is loaded. Cookie-related constants may be overridden in ms_network_cookies().
 172  wp_cookie_constants( );
 173  
 174  // Define and enforce our SSL constants
 175  wp_ssl_constants( );
 176  
 177  // Create common globals.
 178  require( ABSPATH . WPINC . '/vars.php' );
 179  
 180  // Make taxonomies and posts available to plugins and themes.
 181  // @plugin authors: warning: these get registered again on the init hook.
 182  create_initial_taxonomies();
 183  create_initial_post_types();
 184  
 185  // Register the default theme directory root
 186  register_theme_directory( get_theme_root() );
 187  
 188  // Load active plugins.
 189  foreach ( wp_get_active_and_valid_plugins() as $plugin )
 190      include_once( $plugin );
 191  unset( $plugin );
 192  
 193  // Load pluggable functions.
 194  require( ABSPATH . WPINC . '/pluggable.php' );
 195  require( ABSPATH . WPINC . '/pluggable-deprecated.php' );
 196  
 197  // Set internal encoding.
 198  wp_set_internal_encoding();
 199  
 200  // Run wp_cache_postload() if object cache is enabled and the function exists.
 201  if ( WP_CACHE && function_exists( 'wp_cache_postload' ) )
 202      wp_cache_postload();
 203  
 204  do_action( 'plugins_loaded' );
 205  
 206  // Define constants which affect functionality if not already defined.
 207  wp_functionality_constants( );
 208  
 209  // Add magic quotes and set up $_REQUEST ( $_GET + $_POST )
 210  wp_magic_quotes();
 211  
 212  do_action( 'sanitize_comment_cookies' );
 213  
 214  /**
 215   * WordPress Query object
 216   * @global object $wp_the_query
 217   * @since 2.0.0
 218   */
 219  $wp_the_query = new WP_Query();
 220  
 221  /**
 222   * Holds the reference to @see $wp_the_query
 223   * Use this global for WordPress queries
 224   * @global object $wp_query
 225   * @since 1.5.0
 226   */
 227  $wp_query =& $wp_the_query;
 228  
 229  /**
 230   * Holds the WordPress Rewrite object for creating pretty URLs
 231   * @global object $wp_rewrite
 232   * @since 1.5.0
 233   */
 234  $wp_rewrite = new WP_Rewrite();
 235  
 236  /**
 237   * WordPress Object
 238   * @global object $wp
 239   * @since 2.0.0
 240   */
 241  $wp = new WP();
 242  
 243  /**
 244   * WordPress Widget Factory Object
 245   * @global object $wp_widget_factory
 246   * @since 2.8.0
 247   */
 248  $wp_widget_factory = new WP_Widget_Factory();
 249  
 250  do_action( 'setup_theme' );
 251  
 252  // Define the template related constants.
 253  wp_templating_constants(  );
 254  
 255  // Load the default text localization domain.
 256  load_default_textdomain();
 257  
 258  // Find the blog locale.
 259  $locale = get_locale();
 260  $locale_file = WP_LANG_DIR . "/$locale.php";
 261  if ( is_readable( $locale_file ) )
 262      require( $locale_file );
 263  unset($locale_file);
 264  
 265  // Pull in locale data after loading text domain.
 266  require( ABSPATH . WPINC . '/locale.php' );
 267  
 268  /**
 269   * WordPress Locale object for loading locale domain date and various strings.
 270   * @global object $wp_locale
 271   * @since 2.1.0
 272   */
 273  $wp_locale = new WP_Locale();
 274  
 275  // Load the functions for the active theme, for both parent and child theme if applicable.
 276  if ( ! defined( 'WP_INSTALLING' ) ) {
 277      if ( TEMPLATEPATH !== STYLESHEETPATH && file_exists( STYLESHEETPATH . '/functions.php' ) )
 278          include( STYLESHEETPATH . '/functions.php' );
 279      if ( file_exists( TEMPLATEPATH . '/functions.php' ) )
 280          include( TEMPLATEPATH . '/functions.php' );
 281  }
 282  
 283  do_action( 'after_setup_theme' );
 284  
 285  // Load any template functions the theme supports.
 286  require_if_theme_supports( 'post-thumbnails', ABSPATH . WPINC . '/post-thumbnail-template.php' );
 287  
 288  register_shutdown_function( 'shutdown_action_hook' );
 289  
 290  // Set up current user.
 291  $wp->init();
 292  
 293  /**
 294   * Most of WP is loaded at this stage, and the user is authenticated. WP continues
 295   * to load on the init hook that follows (e.g. widgets), and many plugins instantiate
 296   * themselves on it for all sorts of reasons (e.g. they need a user, a taxonomy, etc.).
 297   *
 298   * If you wish to plug an action once WP is loaded, use the wp_loaded hook below.
 299   */
 300  do_action( 'init' );
 301  
 302  // Check site status
 303  if ( is_multisite() ) {
 304      if ( true !== ( $file = ms_site_check() ) ) {
 305          require( $file );
 306          die();
 307      }
 308      unset($file);
 309  }
 310  
 311  /**
 312   * This hook is fired once WP, all plugins, and the theme are fully loaded and instantiated.
 313   *
 314   * AJAX requests should use wp-admin/admin-ajax.php. admin-ajax.php can handle requests for
 315   * users not logged in.
 316   *
 317   * @link http://codex.wordpress.org/AJAX_in_Plugins
 318   *
 319   * @since 3.0.0
 320   */
 321  do_action('wp_loaded');
 322  ?>