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/ -> wp-settings.php (source)

   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  /**
  19   * Version information for the current WordPress release.
  20   *
  21   * These can't be directly globalized in version.php. When updating,
  22   * we're including version.php from another installation and don't want
  23   * these values to be overridden if already set.
  24   *
  25   * @global string $wp_version             The WordPress version string.
  26   * @global int    $wp_db_version          WordPress database version.
  27   * @global string $tinymce_version        TinyMCE version.
  28   * @global string $required_php_version   The required PHP version string.
  29   * @global string $required_mysql_version The required MySQL version string.
  30   * @global string $wp_local_package       Locale code of the package.
  31   */
  32  global $wp_version, $wp_db_version, $tinymce_version, $required_php_version, $required_mysql_version, $wp_local_package;
  33  require  ABSPATH . WPINC . '/version.php';
  34  require ABSPATH . WPINC . '/load.php';
  35  
  36  // Check for the required PHP version and for the MySQL extension or a database drop-in.
  37  wp_check_php_mysql_versions();
  38  
  39  // Include files required for initialization.
  40  require ABSPATH . WPINC . '/class-wp-paused-extensions-storage.php';
  41  require ABSPATH . WPINC . '/class-wp-fatal-error-handler.php';
  42  require ABSPATH . WPINC . '/class-wp-recovery-mode-cookie-service.php';
  43  require ABSPATH . WPINC . '/class-wp-recovery-mode-key-service.php';
  44  require ABSPATH . WPINC . '/class-wp-recovery-mode-link-service.php';
  45  require ABSPATH . WPINC . '/class-wp-recovery-mode-email-service.php';
  46  require ABSPATH . WPINC . '/class-wp-recovery-mode.php';
  47  require ABSPATH . WPINC . '/error-protection.php';
  48  require ABSPATH . WPINC . '/default-constants.php';
  49  require_once  ABSPATH . WPINC . '/plugin.php';
  50  
  51  /**
  52   * If not already configured, `$blog_id` will default to 1 in a single site
  53   * configuration. In multisite, it will be overridden by default in ms-settings.php.
  54   *
  55   * @global int $blog_id
  56   * @since 2.0.0
  57   */
  58  global $blog_id;
  59  
  60  // Set initial default constants including WP_MEMORY_LIMIT, WP_MAX_MEMORY_LIMIT, WP_DEBUG, SCRIPT_DEBUG, WP_CONTENT_DIR and WP_CACHE.
  61  wp_initial_constants();
  62  
  63  // Make sure we register the shutdown handler for fatal errors as soon as possible.
  64  wp_register_fatal_error_handler();
  65  
  66  // WordPress calculates offsets from UTC.
  67  // phpcs:ignore WordPress.DateTime.RestrictedFunctions.timezone_change_date_default_timezone_set
  68  date_default_timezone_set( 'UTC' );
  69  
  70  // Standardize $_SERVER variables across setups.
  71  wp_fix_server_vars();
  72  
  73  // Check if we're in maintenance mode.
  74  wp_maintenance();
  75  
  76  // Start loading timer.
  77  timer_start();
  78  
  79  // Check if we're in WP_DEBUG mode.
  80  wp_debug_mode();
  81  
  82  /**
  83   * Filters whether to enable loading of the advanced-cache.php drop-in.
  84   *
  85   * This filter runs before it can be used by plugins. It is designed for non-web
  86   * run-times. If false is returned, advanced-cache.php will never be loaded.
  87   *
  88   * @since 4.6.0
  89   *
  90   * @param bool $enable_advanced_cache Whether to enable loading advanced-cache.php (if present).
  91   *                                    Default true.
  92   */
  93  if ( WP_CACHE && apply_filters( 'enable_loading_advanced_cache_dropin', true ) && file_exists( WP_CONTENT_DIR . '/advanced-cache.php' ) ) {
  94      // For an advanced caching plugin to use. Uses a static drop-in because you would only want one.
  95      include WP_CONTENT_DIR . '/advanced-cache.php';
  96  
  97      // Re-initialize any hooks added manually by advanced-cache.php.
  98      if ( $wp_filter ) {
  99          $wp_filter = WP_Hook::build_preinitialized_hooks( $wp_filter );
 100      }
 101  }
 102  
 103  // Define WP_LANG_DIR if not set.
 104  wp_set_lang_dir();
 105  
 106  // Load early WordPress files.
 107  require ABSPATH . WPINC . '/compat.php';
 108  require ABSPATH . WPINC . '/class-wp-list-util.php';
 109  require ABSPATH . WPINC . '/formatting.php';
 110  require ABSPATH . WPINC . '/meta.php';
 111  require  ABSPATH . WPINC . '/functions.php';
 112  require ABSPATH . WPINC . '/class-wp-meta-query.php';
 113  require ABSPATH . WPINC . '/class-wp-matchesmapregex.php';
 114  require ABSPATH . WPINC . '/class-wp.php';
 115  require  ABSPATH . WPINC . '/class-wp-error.php';
 116  require  ABSPATH . WPINC . '/pomo/mo.php';
 117  
 118  /**
 119   * @global wpdb $wpdb WordPress database abstraction object.
 120   * @since 0.71
 121   */
 122  global $wpdb;
 123  // Include the wpdb class and, if present, a db.php database drop-in.
 124  require_wp_db();
 125  
 126  // Set the database table prefix and the format specifiers for database table columns.
 127  $GLOBALS['table_prefix'] = $table_prefix;
 128  wp_set_wpdb_vars();
 129  
 130  // Start the WordPress object cache, or an external object cache if the drop-in is present.
 131  wp_start_object_cache();
 132  
 133  // Attach the default filters.
 134  require ABSPATH . WPINC . '/default-filters.php';
 135  
 136  // Initialize multisite if enabled.
 137  if ( is_multisite() ) {
 138      require ABSPATH . WPINC . '/class-wp-site-query.php';
 139      require ABSPATH . WPINC . '/class-wp-network-query.php';
 140      require ABSPATH . WPINC . '/ms-blogs.php';
 141      require ABSPATH . WPINC . '/ms-settings.php';
 142  } elseif ( ! defined( 'MULTISITE' ) ) {
 143      define( 'MULTISITE', false );
 144  }
 145  
 146  register_shutdown_function( 'shutdown_action_hook' );
 147  
 148  // Stop most of WordPress from being loaded if we just want the basics.
 149  if ( SHORTINIT ) {
 150      return false;
 151  }
 152  
 153  // Load the L10n library.
 154  require_once  ABSPATH . WPINC . '/l10n.php';
 155  require_once  ABSPATH . WPINC . '/class-wp-locale.php';
 156  require_once  ABSPATH . WPINC . '/class-wp-locale-switcher.php';
 157  
 158  // Run the installer if WordPress is not installed.
 159  wp_not_installed();
 160  
 161  // Load most of WordPress.
 162  require ABSPATH . WPINC . '/class-wp-walker.php';
 163  require ABSPATH . WPINC . '/class-wp-ajax-response.php';
 164  require ABSPATH . WPINC . '/capabilities.php';
 165  require ABSPATH . WPINC . '/class-wp-roles.php';
 166  require ABSPATH . WPINC . '/class-wp-role.php';
 167  require ABSPATH . WPINC . '/class-wp-user.php';
 168  require ABSPATH . WPINC . '/class-wp-query.php';
 169  require ABSPATH . WPINC . '/query.php';
 170  require ABSPATH . WPINC . '/class-wp-date-query.php';
 171  require ABSPATH . WPINC . '/theme.php';
 172  require ABSPATH . WPINC . '/class-wp-theme.php';
 173  require ABSPATH . WPINC . '/template.php';
 174  require ABSPATH . WPINC . '/https-detection.php';
 175  require ABSPATH . WPINC . '/class-wp-user-request.php';
 176  require ABSPATH . WPINC . '/user.php';
 177  require ABSPATH . WPINC . '/class-wp-user-query.php';
 178  require  ABSPATH . WPINC . '/class-wp-session-tokens.php';
 179  require  ABSPATH . WPINC . '/class-wp-user-meta-session-tokens.php';
 180  require ABSPATH . WPINC . '/class-wp-metadata-lazyloader.php';
 181  require ABSPATH . WPINC . '/general-template.php';
 182  require ABSPATH . WPINC . '/link-template.php';
 183  require ABSPATH . WPINC . '/author-template.php';
 184  require ABSPATH . WPINC . '/robots-template.php';
 185  require ABSPATH . WPINC . '/post.php';
 186  require ABSPATH . WPINC . '/class-walker-page.php';
 187  require ABSPATH . WPINC . '/class-walker-page-dropdown.php';
 188  require ABSPATH . WPINC . '/class-wp-post-type.php';
 189  require ABSPATH . WPINC . '/class-wp-post.php';
 190  require ABSPATH . WPINC . '/post-template.php';
 191  require ABSPATH . WPINC . '/revision.php';
 192  require ABSPATH . WPINC . '/post-formats.php';
 193  require ABSPATH . WPINC . '/post-thumbnail-template.php';
 194  require ABSPATH . WPINC . '/category.php';
 195  require ABSPATH . WPINC . '/class-walker-category.php';
 196  require ABSPATH . WPINC . '/class-walker-category-dropdown.php';
 197  require ABSPATH . WPINC . '/category-template.php';
 198  require ABSPATH . WPINC . '/comment.php';
 199  require ABSPATH . WPINC . '/class-wp-comment.php';
 200  require ABSPATH . WPINC . '/class-wp-comment-query.php';
 201  require ABSPATH . WPINC . '/class-walker-comment.php';
 202  require ABSPATH . WPINC . '/comment-template.php';
 203  require ABSPATH . WPINC . '/rewrite.php';
 204  require ABSPATH . WPINC . '/class-wp-rewrite.php';
 205  require ABSPATH . WPINC . '/feed.php';
 206  require ABSPATH . WPINC . '/bookmark.php';
 207  require ABSPATH . WPINC . '/bookmark-template.php';
 208  require  ABSPATH . WPINC . '/kses.php';
 209  require ABSPATH . WPINC . '/cron.php';
 210  require ABSPATH . WPINC . '/deprecated.php';
 211  require ABSPATH . WPINC . '/script-loader.php';
 212  require ABSPATH . WPINC . '/taxonomy.php';
 213  require ABSPATH . WPINC . '/class-wp-taxonomy.php';
 214  require ABSPATH . WPINC . '/class-wp-term.php';
 215  require ABSPATH . WPINC . '/class-wp-term-query.php';
 216  require ABSPATH . WPINC . '/class-wp-tax-query.php';
 217  require ABSPATH . WPINC . '/update.php';
 218  require ABSPATH . WPINC . '/canonical.php';
 219  require ABSPATH . WPINC . '/shortcodes.php';
 220  require ABSPATH . WPINC . '/embed.php';
 221  require ABSPATH . WPINC . '/class-wp-embed.php';
 222  require ABSPATH . WPINC . '/class-wp-oembed.php';
 223  require ABSPATH . WPINC . '/class-wp-oembed-controller.php';
 224  require ABSPATH . WPINC . '/media.php';
 225  require ABSPATH . WPINC . '/http.php';
 226  require ABSPATH . WPINC . '/class-http.php';
 227  require ABSPATH . WPINC . '/class-wp-http-streams.php';
 228  require ABSPATH . WPINC . '/class-wp-http-curl.php';
 229  require ABSPATH . WPINC . '/class-wp-http-proxy.php';
 230  require ABSPATH . WPINC . '/class-wp-http-cookie.php';
 231  require ABSPATH . WPINC . '/class-wp-http-encoding.php';
 232  require ABSPATH . WPINC . '/class-wp-http-response.php';
 233  require ABSPATH . WPINC . '/class-wp-http-requests-response.php';
 234  require ABSPATH . WPINC . '/class-wp-http-requests-hooks.php';
 235  require ABSPATH . WPINC . '/widgets.php';
 236  require ABSPATH . WPINC . '/class-wp-widget.php';
 237  require ABSPATH . WPINC . '/class-wp-widget-factory.php';
 238  require ABSPATH . WPINC . '/nav-menu.php';
 239  require ABSPATH . WPINC . '/nav-menu-template.php';
 240  require ABSPATH . WPINC . '/admin-bar.php';
 241  require ABSPATH . WPINC . '/class-wp-application-passwords.php';
 242  require ABSPATH . WPINC . '/rest-api.php';
 243  require ABSPATH . WPINC . '/rest-api/class-wp-rest-server.php';
 244  require ABSPATH . WPINC . '/rest-api/class-wp-rest-response.php';
 245  require ABSPATH . WPINC . '/rest-api/class-wp-rest-request.php';
 246  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-controller.php';
 247  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-posts-controller.php';
 248  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-attachments-controller.php';
 249  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-post-types-controller.php';
 250  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-post-statuses-controller.php';
 251  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-revisions-controller.php';
 252  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-autosaves-controller.php';
 253  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-taxonomies-controller.php';
 254  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-terms-controller.php';
 255  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-users-controller.php';
 256  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-comments-controller.php';
 257  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-search-controller.php';
 258  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-blocks-controller.php';
 259  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-block-types-controller.php';
 260  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-block-renderer-controller.php';
 261  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-settings-controller.php';
 262  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-themes-controller.php';
 263  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-plugins-controller.php';
 264  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-block-directory-controller.php';
 265  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-application-passwords-controller.php';
 266  require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-site-health-controller.php';
 267  require ABSPATH . WPINC . '/rest-api/fields/class-wp-rest-meta-fields.php';
 268  require ABSPATH . WPINC . '/rest-api/fields/class-wp-rest-comment-meta-fields.php';
 269  require ABSPATH . WPINC . '/rest-api/fields/class-wp-rest-post-meta-fields.php';
 270  require ABSPATH . WPINC . '/rest-api/fields/class-wp-rest-term-meta-fields.php';
 271  require ABSPATH . WPINC . '/rest-api/fields/class-wp-rest-user-meta-fields.php';
 272  require ABSPATH . WPINC . '/rest-api/search/class-wp-rest-search-handler.php';
 273  require ABSPATH . WPINC . '/rest-api/search/class-wp-rest-post-search-handler.php';
 274  require ABSPATH . WPINC . '/rest-api/search/class-wp-rest-term-search-handler.php';
 275  require ABSPATH . WPINC . '/rest-api/search/class-wp-rest-post-format-search-handler.php';
 276  require ABSPATH . WPINC . '/sitemaps.php';
 277  require ABSPATH . WPINC . '/sitemaps/class-wp-sitemaps.php';
 278  require ABSPATH . WPINC . '/sitemaps/class-wp-sitemaps-index.php';
 279  require ABSPATH . WPINC . '/sitemaps/class-wp-sitemaps-provider.php';
 280  require ABSPATH . WPINC . '/sitemaps/class-wp-sitemaps-registry.php';
 281  require ABSPATH . WPINC . '/sitemaps/class-wp-sitemaps-renderer.php';
 282  require ABSPATH . WPINC . '/sitemaps/class-wp-sitemaps-stylesheet.php';
 283  require ABSPATH . WPINC . '/sitemaps/providers/class-wp-sitemaps-posts.php';
 284  require ABSPATH . WPINC . '/sitemaps/providers/class-wp-sitemaps-taxonomies.php';
 285  require ABSPATH . WPINC . '/sitemaps/providers/class-wp-sitemaps-users.php';
 286  require ABSPATH . WPINC . '/class-wp-block-type.php';
 287  require ABSPATH . WPINC . '/class-wp-block-pattern-categories-registry.php';
 288  require ABSPATH . WPINC . '/class-wp-block-patterns-registry.php';
 289  require ABSPATH . WPINC . '/class-wp-block-styles-registry.php';
 290  require ABSPATH . WPINC . '/class-wp-block-type-registry.php';
 291  require ABSPATH . WPINC . '/class-wp-block.php';
 292  require ABSPATH . WPINC . '/class-wp-block-list.php';
 293  require ABSPATH . WPINC . '/class-wp-block-parser.php';
 294  require ABSPATH . WPINC . '/blocks.php';
 295  require ABSPATH . WPINC . '/blocks/index.php';
 296  require ABSPATH . WPINC . '/block-patterns.php';
 297  require ABSPATH . WPINC . '/class-wp-block-supports.php';
 298  require ABSPATH . WPINC . '/block-supports/align.php';
 299  require ABSPATH . WPINC . '/block-supports/colors.php';
 300  require ABSPATH . WPINC . '/block-supports/custom-classname.php';
 301  require ABSPATH . WPINC . '/block-supports/generated-classname.php';
 302  require ABSPATH . WPINC . '/block-supports/typography.php';
 303  
 304  $GLOBALS['wp_embed'] = new WP_Embed();
 305  
 306  // Load multisite-specific files.
 307  if ( is_multisite() ) {
 308      require ABSPATH . WPINC . '/ms-functions.php';
 309      require ABSPATH . WPINC . '/ms-default-filters.php';
 310      require ABSPATH . WPINC . '/ms-deprecated.php';
 311  }
 312  
 313  // Define constants that rely on the API to obtain the default value.
 314  // Define must-use plugin directory constants, which may be overridden in the sunrise.php drop-in.
 315  wp_plugin_directory_constants();
 316  
 317  $GLOBALS['wp_plugin_paths'] = array();
 318  
 319  // Load must-use plugins.
 320  foreach ( wp_get_mu_plugins() as $mu_plugin ) {
 321      include_once $mu_plugin;
 322  
 323      /**
 324       * Fires once a single must-use plugin has loaded.
 325       *
 326       * @since 5.1.0
 327       *
 328       * @param string $mu_plugin Full path to the plugin's main file.
 329       */
 330      do_action( 'mu_plugin_loaded', $mu_plugin );
 331  }
 332  unset( $mu_plugin );
 333  
 334  // Load network activated plugins.
 335  if ( is_multisite() ) {
 336      foreach ( wp_get_active_network_plugins() as $network_plugin ) {
 337          wp_register_plugin_realpath( $network_plugin );
 338          include_once $network_plugin;
 339  
 340          /**
 341           * Fires once a single network-activated plugin has loaded.
 342           *
 343           * @since 5.1.0
 344           *
 345           * @param string $network_plugin Full path to the plugin's main file.
 346           */
 347          do_action( 'network_plugin_loaded', $network_plugin );
 348      }
 349      unset( $network_plugin );
 350  }
 351  
 352  /**
 353   * Fires once all must-use and network-activated plugins have loaded.
 354   *
 355   * @since 2.8.0
 356   */
 357  do_action( 'muplugins_loaded' );
 358  
 359  if ( is_multisite() ) {
 360      ms_cookie_constants();
 361  }
 362  
 363  // Define constants after multisite is loaded.
 364  wp_cookie_constants();
 365  
 366  // Define and enforce our SSL constants.
 367  wp_ssl_constants();
 368  
 369  // Create common globals.
 370  require ABSPATH . WPINC . '/vars.php';
 371  
 372  // Make taxonomies and posts available to plugins and themes.
 373  // @plugin authors: warning: these get registered again on the init hook.
 374  create_initial_taxonomies();
 375  create_initial_post_types();
 376  
 377  wp_start_scraping_edited_file_errors();
 378  
 379  // Register the default theme directory root.
 380  register_theme_directory( get_theme_root() );
 381  
 382  if ( ! is_multisite() ) {
 383      // Handle users requesting a recovery mode link and initiating recovery mode.
 384      wp_recovery_mode()->initialize();
 385  }
 386  
 387  // Load active plugins.
 388  foreach ( wp_get_active_and_valid_plugins() as $plugin ) {
 389      wp_register_plugin_realpath( $plugin );
 390      include_once $plugin;
 391  
 392      /**
 393       * Fires once a single activated plugin has loaded.
 394       *
 395       * @since 5.1.0
 396       *
 397       * @param string $plugin Full path to the plugin's main file.
 398       */
 399      do_action( 'plugin_loaded', $plugin );
 400  }
 401  unset( $plugin );
 402  
 403  // Load pluggable functions.
 404  require  ABSPATH . WPINC . '/pluggable.php';
 405  require ABSPATH . WPINC . '/pluggable-deprecated.php';
 406  
 407  // Set internal encoding.
 408  wp_set_internal_encoding();
 409  
 410  // Run wp_cache_postload() if object cache is enabled and the function exists.
 411  if ( WP_CACHE && function_exists( 'wp_cache_postload' ) ) {
 412      wp_cache_postload();
 413  }
 414  
 415  /**
 416   * Fires once activated plugins have loaded.
 417   *
 418   * Pluggable functions are also available at this point in the loading order.
 419   *
 420   * @since 1.5.0
 421   */
 422  do_action( 'plugins_loaded' );
 423  
 424  // Define constants which affect functionality if not already defined.
 425  wp_functionality_constants();
 426  
 427  // Add magic quotes and set up $_REQUEST ( $_GET + $_POST ).
 428  wp_magic_quotes();
 429  
 430  /**
 431   * Fires when comment cookies are sanitized.
 432   *
 433   * @since 2.0.11
 434   */
 435  do_action( 'sanitize_comment_cookies' );
 436  
 437  /**
 438   * WordPress Query object
 439   *
 440   * @global WP_Query $wp_the_query WordPress Query object.
 441   * @since 2.0.0
 442   */
 443  $GLOBALS['wp_the_query'] = new WP_Query();
 444  
 445  /**
 446   * Holds the reference to @see $wp_the_query
 447   * Use this global for WordPress queries
 448   *
 449   * @global WP_Query $wp_query WordPress Query object.
 450   * @since 1.5.0
 451   */
 452  $GLOBALS['wp_query'] = $GLOBALS['wp_the_query'];
 453  
 454  /**
 455   * Holds the WordPress Rewrite object for creating pretty URLs
 456   *
 457   * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 458   * @since 1.5.0
 459   */
 460  $GLOBALS['wp_rewrite'] = new WP_Rewrite();
 461  
 462  /**
 463   * WordPress Object
 464   *
 465   * @global WP $wp Current WordPress environment instance.
 466   * @since 2.0.0
 467   */
 468  $GLOBALS['wp'] = new WP();
 469  
 470  /**
 471   * WordPress Widget Factory Object
 472   *
 473   * @global WP_Widget_Factory $wp_widget_factory
 474   * @since 2.8.0
 475   */
 476  $GLOBALS['wp_widget_factory'] = new WP_Widget_Factory();
 477  
 478  /**
 479   * WordPress User Roles
 480   *
 481   * @global WP_Roles $wp_roles WordPress role management object.
 482   * @since 2.0.0
 483   */
 484  $GLOBALS['wp_roles'] = new WP_Roles();
 485  
 486  /**
 487   * Fires before the theme is loaded.
 488   *
 489   * @since 2.6.0
 490   */
 491  do_action( 'setup_theme' );
 492  
 493  // Define the template related constants.
 494  wp_templating_constants();
 495  
 496  // Load the default text localization domain.
 497  load_default_textdomain();
 498  
 499  $locale      = get_locale();
 500  $locale_file = WP_LANG_DIR . "/$locale.php";
 501  if ( ( 0 === validate_file( $locale ) ) && is_readable( $locale_file ) ) {
 502      require $locale_file;
 503  }
 504  unset( $locale_file );
 505  
 506  /**
 507   * WordPress Locale object for loading locale domain date and various strings.
 508   *
 509   * @global WP_Locale $wp_locale WordPress date and time locale object.
 510   * @since 2.1.0
 511   */
 512  $GLOBALS['wp_locale'] = new WP_Locale();
 513  
 514  /**
 515   * WordPress Locale Switcher object for switching locales.
 516   *
 517   * @since 4.7.0
 518   *
 519   * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object.
 520   */
 521  $GLOBALS['wp_locale_switcher'] = new WP_Locale_Switcher();
 522  $GLOBALS['wp_locale_switcher']->init();
 523  
 524  // Load the functions for the active theme, for both parent and child theme if applicable.
 525  foreach ( wp_get_active_and_valid_themes() as $theme ) {
 526      if ( file_exists( $theme . '/functions.php' ) ) {
 527          include $theme . '/functions.php';
 528      }
 529  }
 530  unset( $theme );
 531  
 532  /**
 533   * Fires after the theme is loaded.
 534   *
 535   * @since 3.0.0
 536   */
 537  do_action( 'after_setup_theme' );
 538  
 539  // Create an instance of WP_Site_Health so that Cron events may fire.
 540  if ( ! class_exists( 'WP_Site_Health' ) ) {
 541      require_once  ABSPATH . 'wp-admin/includes/class-wp-site-health.php';
 542  }
 543  WP_Site_Health::get_instance();
 544  
 545  // Set up current user.
 546  $GLOBALS['wp']->init();
 547  
 548  /**
 549   * Fires after WordPress has finished loading but before any headers are sent.
 550   *
 551   * Most of WP is loaded at this stage, and the user is authenticated. WP continues
 552   * to load on the {@see 'init'} hook that follows (e.g. widgets), and many plugins instantiate
 553   * themselves on it for all sorts of reasons (e.g. they need a user, a taxonomy, etc.).
 554   *
 555   * If you wish to plug an action once WP is loaded, use the {@see 'wp_loaded'} hook below.
 556   *
 557   * @since 1.5.0
 558   */
 559  do_action( 'init' );
 560  
 561  // Check site status.
 562  if ( is_multisite() ) {
 563      $file = ms_site_check();
 564      if ( true !== $file ) {
 565          require $file;
 566          die();
 567      }
 568      unset( $file );
 569  }
 570  
 571  /**
 572   * This hook is fired once WP, all plugins, and the theme are fully loaded and instantiated.
 573   *
 574   * Ajax requests should use wp-admin/admin-ajax.php. admin-ajax.php can handle requests for
 575   * users not logged in.
 576   *
 577   * @link https://codex.wordpress.org/AJAX_in_Plugins
 578   *
 579   * @since 3.0.0
 580   */
 581  do_action( 'wp_loaded' );


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