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ðŸ“ ..
ðŸ“ ID3
ðŸ“ IXR
ðŸ“ PHPMailer
ðŸ“ Requests
ðŸ“ SimplePie
ðŸ“ Text
ðŸ“„ admin-bar.php(36.24 KB)
ðŸ“ assets
ðŸ“„ atomlib.php(11.79 KB)
ðŸ“„ author-template.php(18.51 KB)
ðŸ“ block-bindings
ðŸ“„ block-bindings.php(5.46 KB)
ðŸ“„ block-editor.php(28.12 KB)
ðŸ“„ block-i18n.json(316 B)
ðŸ“ block-patterns
ðŸ“„ block-patterns.php(12.9 KB)
ðŸ“ block-supports
ðŸ“„ block-template-utils.php(60.46 KB)
ðŸ“„ block-template.php(15 KB)
ðŸ“ blocks
ðŸ“„ blocks.php(109.11 KB)
ðŸ“„ bookmark-template.php(12.47 KB)
ðŸ“„ bookmark.php(15.07 KB)
ðŸ“„ cache-compat.php(5.83 KB)
ðŸ“„ cache.php(13.16 KB)
ðŸ“„ canonical.php(33.71 KB)
ðŸ“„ capabilities.php(41.72 KB)
ðŸ“„ category-template.php(55.67 KB)
ðŸ“„ category.php(12.53 KB)
ðŸ“ certificates
ðŸ“„ class-IXR.php(2.55 KB)
ðŸ“„ class-avif-info.php(28.92 KB)
ðŸ“„ class-feed.php(539 B)
ðŸ“„ class-http.php(367 B)
ðŸ“„ class-json.php(42.66 KB)
ðŸ“„ class-oembed.php(401 B)
ðŸ“„ class-phpass.php(6.61 KB)
ðŸ“„ class-phpmailer.php(664 B)
ðŸ“„ class-pop3.php(20.63 KB)
ðŸ“„ class-requests.php(2.18 KB)
ðŸ“„ class-simplepie.php(453 B)
ðŸ“„ class-smtp.php(457 B)
ðŸ“„ class-snoopy.php(36.83 KB)
ðŸ“„ class-walker-category-dropdown.php(2.41 KB)
ðŸ“„ class-walker-category.php(8.28 KB)
ðŸ“„ class-walker-comment.php(13.89 KB)
ðŸ“„ class-walker-nav-menu.php(11.76 KB)
ðŸ“„ class-walker-page-dropdown.php(2.65 KB)
ðŸ“„ class-walker-page.php(7.43 KB)
ðŸ“„ class-wp-admin-bar.php(17.46 KB)
ðŸ“„ class-wp-ajax-response.php(5.14 KB)
ðŸ“„ class-wp-application-passwords.php(16.7 KB)
ðŸ“„ class-wp-block-bindings-registry.php(8.26 KB)
ðŸ“„ class-wp-block-bindings-source.php(2.92 KB)
ðŸ“„ class-wp-block-editor-context.php(1.32 KB)
ðŸ“„ class-wp-block-list.php(4.65 KB)
ðŸ“„ class-wp-block-metadata-registry.php(11.62 KB)
ðŸ“„ class-wp-block-parser-block.php(2.5 KB)
ðŸ“„ class-wp-block-parser-frame.php(1.97 KB)
ðŸ“„ class-wp-block-parser.php(11.26 KB)
ðŸ“„ class-wp-block-pattern-categories-registry.php(5.25 KB)
ðŸ“„ class-wp-block-patterns-registry.php(10.53 KB)
ðŸ“„ class-wp-block-styles-registry.php(6.25 KB)
ðŸ“„ class-wp-block-supports.php(5.49 KB)
ðŸ“„ class-wp-block-template.php(1.99 KB)
ðŸ“„ class-wp-block-templates-registry.php(7.06 KB)
ðŸ“„ class-wp-block-type-registry.php(4.9 KB)
ðŸ“„ class-wp-block-type.php(16.86 KB)
ðŸ“„ class-wp-block.php(22.5 KB)
ðŸ“„ class-wp-classic-to-block-menu-converter.php(3.99 KB)
ðŸ“„ class-wp-comment-query.php(47.26 KB)
ðŸ“„ class-wp-comment.php(9.22 KB)
ðŸ“„ class-wp-customize-control.php(25.25 KB)
ðŸ“„ class-wp-customize-manager.php(197.84 KB)
ðŸ“„ class-wp-customize-nav-menus.php(56.07 KB)
ðŸ“„ class-wp-customize-panel.php(10.46 KB)
ðŸ“„ class-wp-customize-section.php(10.95 KB)
ðŸ“„ class-wp-customize-setting.php(29.26 KB)
ðŸ“„ class-wp-customize-widgets.php(70.52 KB)
ðŸ“„ class-wp-date-query.php(34.89 KB)
ðŸ“„ class-wp-dependencies.php(14.78 KB)
ðŸ“„ class-wp-dependency.php(2.57 KB)
ðŸ“„ class-wp-duotone.php(39.83 KB)
ðŸ“„ class-wp-editor.php(70.64 KB)
ðŸ“„ class-wp-embed.php(15.56 KB)
ðŸ“„ class-wp-error.php(7.33 KB)
ðŸ“„ class-wp-exception.php(253 B)
ðŸ“„ class-wp-fatal-error-handler.php(7.96 KB)
ðŸ“„ class-wp-feed-cache-transient.php(3.1 KB)
ðŸ“„ class-wp-feed-cache.php(969 B)
ðŸ“„ class-wp-hook.php(15.63 KB)
ðŸ“„ class-wp-http-cookie.php(7.22 KB)
ðŸ“„ class-wp-http-curl.php(12.25 KB)
ðŸ“„ class-wp-http-encoding.php(6.53 KB)
ðŸ“„ class-wp-http-ixr-client.php(3.42 KB)
ðŸ“„ class-wp-http-proxy.php(5.84 KB)
ðŸ“„ class-wp-http-requests-hooks.php(1.97 KB)
ðŸ“„ class-wp-http-requests-response.php(4.3 KB)
ðŸ“„ class-wp-http-response.php(2.91 KB)
ðŸ“„ class-wp-http-streams.php(16.46 KB)
ðŸ“„ class-wp-http.php(40.6 KB)
ðŸ“„ class-wp-image-editor-gd.php(19.69 KB)
ðŸ“„ class-wp-image-editor-imagick.php(33.92 KB)
ðŸ“„ class-wp-image-editor.php(17.12 KB)
ðŸ“„ class-wp-list-util.php(7.27 KB)
ðŸ“„ class-wp-locale-switcher.php(6.62 KB)
ðŸ“„ class-wp-locale.php(16.49 KB)
ðŸ“„ class-wp-matchesmapregex.php(1.79 KB)
ðŸ“„ class-wp-meta-query.php(29.82 KB)
ðŸ“„ class-wp-metadata-lazyloader.php(6.67 KB)
ðŸ“„ class-wp-navigation-fallback.php(9 KB)
ðŸ“„ class-wp-network-query.php(19.39 KB)
ðŸ“„ class-wp-network.php(12.01 KB)
ðŸ“„ class-wp-object-cache.php(17.11 KB)
ðŸ“„ class-wp-oembed-controller.php(6.74 KB)
ðŸ“„ class-wp-oembed.php(30.91 KB)
ðŸ“„ class-wp-paused-extensions-storage.php(4.99 KB)
ðŸ“„ class-wp-phpmailer.php(3.71 KB)
ðŸ“„ class-wp-plugin-dependencies.php(24.72 KB)
ðŸ“„ class-wp-post-type.php(29.96 KB)
ðŸ“„ class-wp-post.php(6.34 KB)
ðŸ“„ class-wp-query.php(154.32 KB)
ðŸ“„ class-wp-recovery-mode-cookie-service.php(6.72 KB)
ðŸ“„ class-wp-recovery-mode-email-service.php(10.92 KB)
ðŸ“„ class-wp-recovery-mode-key-service.php(4.77 KB)
ðŸ“„ class-wp-recovery-mode-link-service.php(3.38 KB)
ðŸ“„ class-wp-recovery-mode.php(11.18 KB)
ðŸ“„ class-wp-rewrite.php(62.2 KB)
ðŸ“„ class-wp-role.php(2.46 KB)
ðŸ“„ class-wp-roles.php(8.38 KB)
ðŸ“„ class-wp-script-modules.php(19.01 KB)
ðŸ“„ class-wp-scripts.php(27.68 KB)
ðŸ“„ class-wp-session-tokens.php(7.15 KB)
ðŸ“„ class-wp-simplepie-file.php(3.33 KB)
ðŸ“„ class-wp-simplepie-sanitize-kses.php(1.87 KB)
ðŸ“„ class-wp-site-query.php(30.88 KB)
ðŸ“„ class-wp-site.php(7.28 KB)
ðŸ“„ class-wp-speculation-rules.php(7.35 KB)
ðŸ“„ class-wp-styles.php(10.75 KB)
ðŸ“„ class-wp-tax-query.php(19.1 KB)
ðŸ“„ class-wp-taxonomy.php(18.12 KB)
ðŸ“„ class-wp-term-query.php(39.91 KB)
ðŸ“„ class-wp-term.php(5.17 KB)
ðŸ“„ class-wp-text-diff-renderer-inline.php(979 B)
ðŸ“„ class-wp-text-diff-renderer-table.php(18.44 KB)
ðŸ“„ class-wp-textdomain-registry.php(10.24 KB)
ðŸ“„ class-wp-theme-json-data.php(1.77 KB)
ðŸ“„ class-wp-theme-json-resolver.php(34.9 KB)
ðŸ“„ class-wp-theme-json-schema.php(7.19 KB)
ðŸ“„ class-wp-theme-json.php(159.71 KB)
ðŸ“„ class-wp-theme.php(64.27 KB)
ðŸ“„ class-wp-token-map.php(27.95 KB)
ðŸ“„ class-wp-url-pattern-prefixer.php(4.69 KB)
ðŸ“„ class-wp-user-meta-session-tokens.php(2.92 KB)
ðŸ“„ class-wp-user-query.php(42.63 KB)
ðŸ“„ class-wp-user-request.php(2.25 KB)
ðŸ“„ class-wp-user.php(22.46 KB)
ðŸ“„ class-wp-walker.php(13.01 KB)
ðŸ“„ class-wp-widget-factory.php(3.27 KB)
ðŸ“„ class-wp-widget.php(18 KB)
ðŸ“„ class-wp-xmlrpc-server.php(210.39 KB)
ðŸ“„ class-wp.php(25.7 KB)
ðŸ“„ class-wpdb.php(115.51 KB)
ðŸ“„ class.wp-dependencies.php(373 B)
ðŸ“„ class.wp-scripts.php(343 B)
ðŸ“„ class.wp-styles.php(338 B)
ðŸ“„ comment-template.php(100.47 KB)
ðŸ“„ comment.php(128.46 KB)
ðŸ“„ compat.php(15.99 KB)
ðŸ“„ cron.php(41.66 KB)
ðŸ“ css
ðŸ“ customize
ðŸ“„ date.php(400 B)
ðŸ“„ default-constants.php(11.1 KB)
ðŸ“„ default-filters.php(35.84 KB)
ðŸ“„ default-widgets.php(2.24 KB)
ðŸ“„ deprecated.php(187.07 KB)
ðŸ“„ embed-template.php(338 B)
ðŸ“„ embed.php(37.28 KB)
ðŸ“„ error-protection.php(4.02 KB)
ðŸ“„ error_log(503.66 KB)
ðŸ“„ feed-atom-comments.php(5.38 KB)
ðŸ“„ feed-atom.php(3.05 KB)
ðŸ“„ feed-rdf.php(2.61 KB)
ðŸ“„ feed-rss.php(1.16 KB)
ðŸ“„ feed-rss2-comments.php(4.04 KB)
ðŸ“„ feed-rss2.php(3.71 KB)
ðŸ“„ feed.php(22.86 KB)
ðŸ“ fonts
ðŸ“„ fonts.php(9.52 KB)
ðŸ“„ formatting.php(334.24 KB)
ðŸ“„ functions.php(280.81 KB)
ðŸ“„ functions.wp-scripts.php(14.22 KB)
ðŸ“„ functions.wp-styles.php(8.38 KB)
ðŸ“„ general-template.php(168.46 KB)
ðŸ“„ global-styles-and-settings.php(20.76 KB)
ðŸ“ html-api
ðŸ“„ http.php(24.72 KB)
ðŸ“„ https-detection.php(5.72 KB)
ðŸ“„ https-migration.php(4.63 KB)
ðŸ“ images
ðŸ“ interactivity-api
ðŸ“ js
ðŸ“„ kses.php(72.73 KB)
ðŸ“ l10n
ðŸ“„ l10n.php(66.92 KB)
ðŸ“„ link-template.php(154.1 KB)
ðŸ“„ load.php(55.12 KB)
ðŸ“„ locale.php(162 B)
ðŸ“„ media-template.php(61.58 KB)
ðŸ“„ media.php(215.12 KB)
ðŸ“„ meta.php(63.71 KB)
ðŸ“„ ms-blogs.php(25.24 KB)
ðŸ“„ ms-default-constants.php(4.81 KB)
ðŸ“„ ms-default-filters.php(6.48 KB)
ðŸ“„ ms-deprecated.php(21.25 KB)
ðŸ“„ ms-files.php(2.68 KB)
ðŸ“„ ms-functions.php(89.44 KB)
ðŸ“„ ms-load.php(19.42 KB)
ðŸ“„ ms-network.php(3.69 KB)
ðŸ“„ ms-settings.php(4.1 KB)
ðŸ“„ ms-site.php(40.35 KB)
ðŸ“„ nav-menu-template.php(25.38 KB)
ðŸ“„ nav-menu.php(43.33 KB)
ðŸ“„ option.php(100.65 KB)
ðŸ“ php-compat
ðŸ“„ pluggable-deprecated.php(6.18 KB)
ðŸ“„ pluggable.php(119.82 KB)
ðŸ“„ plugin.php(34.63 KB)
ðŸ“ pomo
ðŸ“„ post-formats.php(6.94 KB)
ðŸ“„ post-template.php(67.04 KB)
ðŸ“„ post-thumbnail-template.php(10.62 KB)
ðŸ“„ post.php(284.88 KB)
ðŸ“„ query.php(36.17 KB)
ðŸ“„ registration-functions.php(200 B)
ðŸ“„ registration.php(200 B)
ðŸ“ rest-api
ðŸ“„ rest-api.php(97.91 KB)
ðŸ“„ revision.php(30.02 KB)
ðŸ“„ rewrite.php(19.08 KB)
ðŸ“„ robots-template.php(5.06 KB)
ðŸ“„ rss-functions.php(255 B)
ðŸ“„ rss.php(22.57 KB)
ðŸ“„ script-loader.php(130.14 KB)
ðŸ“„ script-modules.php(7.53 KB)
ðŸ“„ session.php(258 B)
ðŸ“„ shortcodes.php(23.49 KB)
ðŸ“ sitemaps
ðŸ“„ sitemaps.php(3.16 KB)
ðŸ“ sodium_compat
ðŸ“„ speculative-loading.php(8.36 KB)
ðŸ“„ spl-autoload-compat.php(441 B)
ðŸ“ style-engine
ðŸ“„ style-engine.php(7.39 KB)
ðŸ“„ taxonomy.php(172.1 KB)
ðŸ“„ template-canvas.php(544 B)
ðŸ“„ template-loader.php(2.94 KB)
ðŸ“„ template.php(23.59 KB)
ðŸ“ theme-compat
ðŸ“„ theme-i18n.json(1.49 KB)
ðŸ“„ theme-previews.php(2.77 KB)
ðŸ“„ theme-templates.php(6.09 KB)
ðŸ“„ theme.json(8.5 KB)
ðŸ“„ theme.php(131.16 KB)
ðŸ“„ update.php(36.62 KB)
ðŸ“„ user.php(171.7 KB)
ðŸ“„ vars.php(6.41 KB)
ðŸ“„ version.php(1.06 KB)
ðŸ“ widgets
ðŸ“„ widgets.php(69.06 KB)
ðŸ“„ wp-db.php(445 B)
ðŸ“„ wp-diff.php(799 B)

Editing: ms-load.php

<?php
/**
 * These functions are needed to load Multisite.
 *
 * @since 3.0.0
 *
 * @package WordPress
 * @subpackage Multisite
 */

/**
 * Whether a subdomain configuration is enabled.
 *
 * @since 3.0.0
 *
 * @return bool True if subdomain configuration is enabled, false otherwise.
 */
function is_subdomain_install() {
	if ( defined( 'SUBDOMAIN_INSTALL' ) ) {
		return SUBDOMAIN_INSTALL;
	}

return ( defined( 'VHOST' ) && 'yes' === VHOST );
}

/**
 * Returns array of network plugin files to be included in global scope.
 *
 * 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`.
 *
 * @access private
 * @since 3.1.0
 *
 * @return string[] Array of absolute paths to files to include.
 */
function wp_get_active_network_plugins() {
	$active_plugins = (array) get_site_option( 'active_sitewide_plugins', array() );
	if ( empty( $active_plugins ) ) {
		return array();
	}

$plugins        = array();
	$active_plugins = array_keys( $active_plugins );
	sort( $active_plugins );

foreach ( $active_plugins as $plugin ) {
		if ( ! validate_file( $plugin )                     // $plugin must validate as file.
			&& str_ends_with( $plugin, '.php' )             // $plugin must end with '.php'.
			&& file_exists( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist.
			) {
			$plugins[] = WP_PLUGIN_DIR . '/' . $plugin;
		}
	}

return $plugins;
}

/**
 * Checks status of current blog.
 *
 * Checks if the blog is deleted, inactive, archived, or spammed.
 *
 * Dies with a default message if the blog does not pass the check.
 *
 * To change the default message when a blog does not pass the check,
 * use the wp-content/blog-deleted.php, blog-inactive.php and
 * blog-suspended.php drop-ins.
 *
 * @since 3.0.0
 *
 * @return true|string Returns true on success, or drop-in file to include.
 */
function ms_site_check() {

/**
	 * Filters checking the status of the current blog.
	 *
	 * @since 3.0.0
	 *
	 * @param bool|null $check Whether to skip the blog status check. Default null.
	 */
	$check = apply_filters( 'ms_site_check', null );
	if ( null !== $check ) {
		return true;
	}

// Allow super admins to see blocked sites.
	if ( is_super_admin() ) {
		return true;
	}

$blog = get_site();

if ( '1' === $blog->deleted ) {
		if ( file_exists( WP_CONTENT_DIR . '/blog-deleted.php' ) ) {
			return WP_CONTENT_DIR . '/blog-deleted.php';
		} else {
			wp_die( __( 'This site is no longer available.' ), '', array( 'response' => 410 ) );
		}
	}

if ( '2' === $blog->deleted ) {
		if ( file_exists( WP_CONTENT_DIR . '/blog-inactive.php' ) ) {
			return WP_CONTENT_DIR . '/blog-inactive.php';
		} else {
			$admin_email = str_replace( '@', ' AT ', get_site_option( 'admin_email', 'support@' . get_network()->domain ) );
			wp_die(
				sprintf(
					/* translators: %s: Admin email link. */
					__( 'This site has not been activated yet. If you are having problems activating your site, please contact %s.' ),
					sprintf( '<a href="mailto:%1$s">%1$s</a>', $admin_email )
				)
			);
		}
	}

if ( '1' === $blog->archived || '1' === $blog->spam ) {
		if ( file_exists( WP_CONTENT_DIR . '/blog-suspended.php' ) ) {
			return WP_CONTENT_DIR . '/blog-suspended.php';
		} else {
			wp_die( __( 'This site has been archived or suspended.' ), '', array( 'response' => 410 ) );
		}
	}

return true;
}

/**
 * Retrieves the closest matching network for a domain and path.
 *
 * @since 3.9.0
 *
 * @internal In 4.4.0, converted to a wrapper for WP_Network::get_by_path()
 *
 * @param string   $domain   Domain to check.
 * @param string   $path     Path to check.
 * @param int|null $segments Path segments to use. Defaults to null, or the full path.
 * @return WP_Network|false Network object if successful. False when no network is found.
 */
function get_network_by_path( $domain, $path, $segments = null ) {
	return WP_Network::get_by_path( $domain, $path, $segments );
}

/**
 * Retrieves the closest matching site object by its domain and path.
 *
 * This will not necessarily return an exact match for a domain and path. Instead, it
 * breaks the domain and path into pieces that are then used to match the closest
 * possibility from a query.
 *
 * The intent of this method is to match a site object during bootstrap for a
 * requested site address
 *
 * @since 3.9.0
 * @since 4.7.0 Updated to always return a `WP_Site` object.
 *
 * @param string   $domain   Domain to check.
 * @param string   $path     Path to check.
 * @param int|null $segments Path segments to use. Defaults to null, or the full path.
 * @return WP_Site|false Site object if successful. False when no site is found.
 */
function get_site_by_path( $domain, $path, $segments = null ) {
	$path_segments = array_filter( explode( '/', trim( $path, '/' ) ) );

/**
	 * Filters the number of path segments to consider when searching for a site.
	 *
	 * @since 3.9.0
	 *
	 * @param int|null $segments The number of path segments to consider. WordPress by default looks at
	 *                           one path segment following the network path. The function default of
	 *                           null only makes sense when you know the requested path should match a site.
	 * @param string   $domain   The requested domain.
	 * @param string   $path     The requested path, in full.
	 */
	$segments = apply_filters( 'site_by_path_segments_count', $segments, $domain, $path );

if ( null !== $segments && count( $path_segments ) > $segments ) {
		$path_segments = array_slice( $path_segments, 0, $segments );
	}

$paths = array();

while ( count( $path_segments ) ) {
		$paths[] = '/' . implode( '/', $path_segments ) . '/';
		array_pop( $path_segments );
	}

$paths[] = '/';

/**
	 * Determines a site by its domain and path.
	 *
	 * This allows one to short-circuit the default logic, perhaps by
	 * replacing it with a routine that is more optimal for your setup.
	 *
	 * Return null to avoid the short-circuit. Return false if no site
	 * can be found at the requested domain and path. Otherwise, return
	 * a site object.
	 *
	 * @since 3.9.0
	 *
	 * @param null|false|WP_Site $site     Site value to return by path. Default null
	 *                                     to continue retrieving the site.
	 * @param string             $domain   The requested domain.
	 * @param string             $path     The requested path, in full.
	 * @param int|null           $segments The suggested number of paths to consult.
	 *                                     Default null, meaning the entire path was to be consulted.
	 * @param string[]           $paths    The paths to search for, based on $path and $segments.
	 */
	$pre = apply_filters( 'pre_get_site_by_path', null, $domain, $path, $segments, $paths );
	if ( null !== $pre ) {
		if ( false !== $pre && ! $pre instanceof WP_Site ) {
			$pre = new WP_Site( $pre );
		}
		return $pre;
	}

/*
	 * @todo
	 * Caching, etc. Consider alternative optimization routes,
	 * perhaps as an opt-in for plugins, rather than using the pre_* filter.
	 * For example: The segments filter can expand or ignore paths.
	 * If persistent caching is enabled, we could query the DB for a path <> '/'
	 * then cache whether we can just always ignore paths.
	 */

/*
	 * Either www or non-www is supported, not both. If a www domain is requested,
	 * query for both to provide the proper redirect.
	 */
	$domains = array( $domain );
	if ( str_starts_with( $domain, 'www.' ) ) {
		$domains[] = substr( $domain, 4 );
	}

$args = array(
		'number'                 => 1,
		'update_site_meta_cache' => false,
	);

if ( count( $domains ) > 1 ) {
		$args['domain__in']               = $domains;
		$args['orderby']['domain_length'] = 'DESC';
	} else {
		$args['domain'] = array_shift( $domains );
	}

if ( count( $paths ) > 1 ) {
		$args['path__in']               = $paths;
		$args['orderby']['path_length'] = 'DESC';
	} else {
		$args['path'] = array_shift( $paths );
	}

$result = get_sites( $args );
	$site   = array_shift( $result );

if ( $site ) {
		return $site;
	}

return false;
}

/**
 * Identifies the network and site of a requested domain and path and populates the
 * corresponding network and site global objects as part of the multisite bootstrap process.
 *
 * Prior to 4.6.0, this was a procedural block in `ms-settings.php`. It was wrapped into
 * a function to facilitate unit tests. It should not be used outside of core.
 *
 * Usually, it's easier to query the site first, which then declares its network.
 * In limited situations, we either can or must find the network first.
 *
 * If a network and site are found, a `true` response will be returned so that the
 * request can continue.
 *
 * If neither a network or site is found, `false` or a URL string will be returned
 * so that either an error can be shown or a redirect can occur.
 *
 * @since 4.6.0
 * @access private
 *
 * @global WP_Network $current_site The current network.
 * @global WP_Site    $current_blog The current site.
 *
 * @param string $domain    The requested domain.
 * @param string $path      The requested path.
 * @param bool   $subdomain Optional. Whether a subdomain (true) or subdirectory (false) configuration.
 *                          Default false.
 * @return bool|string True if bootstrap successfully populated `$current_blog` and `$current_site`.
 *                     False if bootstrap could not be properly completed.
 *                     Redirect URL if parts exist, but the request as a whole can not be fulfilled.
 */
function ms_load_current_site_and_network( $domain, $path, $subdomain = false ) {
	global $current_site, $current_blog;

// If the network is defined in wp-config.php, we can simply use that.
	if ( defined( 'DOMAIN_CURRENT_SITE' ) && defined( 'PATH_CURRENT_SITE' ) ) {
		$current_site         = new stdClass();
		$current_site->id     = defined( 'SITE_ID_CURRENT_SITE' ) ? SITE_ID_CURRENT_SITE : 1;
		$current_site->domain = DOMAIN_CURRENT_SITE;
		$current_site->path   = PATH_CURRENT_SITE;
		if ( defined( 'BLOG_ID_CURRENT_SITE' ) ) {
			$current_site->blog_id = BLOG_ID_CURRENT_SITE;
		} elseif ( defined( 'BLOGID_CURRENT_SITE' ) ) { // Deprecated.
			$current_site->blog_id = BLOGID_CURRENT_SITE;
		}

if ( 0 === strcasecmp( $current_site->domain, $domain ) && 0 === strcasecmp( $current_site->path, $path ) ) {
			$current_blog = get_site_by_path( $domain, $path );
		} elseif ( '/' !== $current_site->path && 0 === strcasecmp( $current_site->domain, $domain ) && 0 === stripos( $path, $current_site->path ) ) {
			/*
			 * If the current network has a path and also matches the domain and path of the request,
			 * we need to look for a site using the first path segment following the network's path.
			 */
			$current_blog = get_site_by_path( $domain, $path, 1 + count( explode( '/', trim( $current_site->path, '/' ) ) ) );
		} else {
			// Otherwise, use the first path segment (as usual).
			$current_blog = get_site_by_path( $domain, $path, 1 );
		}
	} elseif ( ! $subdomain ) {
		/*
		 * A "subdomain" installation can be re-interpreted to mean "can support any domain".
		 * If we're not dealing with one of these installations, then the important part is determining
		 * the network first, because we need the network's path to identify any sites.
		 */
		$current_site = wp_cache_get( 'current_network', 'site-options' );
		if ( ! $current_site ) {
			// Are there even two networks installed?
			$networks = get_networks( array( 'number' => 2 ) );
			if ( count( $networks ) === 1 ) {
				$current_site = array_shift( $networks );
				wp_cache_add( 'current_network', $current_site, 'site-options' );
			} elseif ( empty( $networks ) ) {
				// A network not found hook should fire here.
				return false;
			}
		}

if ( empty( $current_site ) ) {
			$current_site = WP_Network::get_by_path( $domain, $path, 1 );
		}

if ( empty( $current_site ) ) {
			/**
			 * Fires when a network cannot be found based on the requested domain and path.
			 *
			 * At the time of this action, the only recourse is to redirect somewhere
			 * and exit. If you want to declare a particular network, do so earlier.
			 *
			 * @since 4.4.0
			 *
			 * @param string $domain       The domain used to search for a network.
			 * @param string $path         The path used to search for a path.
			 */
			do_action( 'ms_network_not_found', $domain, $path );

return false;
		} elseif ( $path === $current_site->path ) {
			$current_blog = get_site_by_path( $domain, $path );
		} else {
			// Search the network path + one more path segment (on top of the network path).
			$current_blog = get_site_by_path( $domain, $path, substr_count( $current_site->path, '/' ) );
		}
	} else {
		// Find the site by the domain and at most the first path segment.
		$current_blog = get_site_by_path( $domain, $path, 1 );
		if ( $current_blog ) {
			$current_site = WP_Network::get_instance( $current_blog->site_id ? $current_blog->site_id : 1 );
		} else {
			// If you don't have a site with the same domain/path as a network, you're pretty screwed, but:
			$current_site = WP_Network::get_by_path( $domain, $path, 1 );
		}
	}

// The network declared by the site trumps any constants.
	if ( $current_blog && (int) $current_blog->site_id !== $current_site->id ) {
		$current_site = WP_Network::get_instance( $current_blog->site_id );
	}

// No network has been found, bail.
	if ( empty( $current_site ) ) {
		/** This action is documented in wp-includes/ms-settings.php */
		do_action( 'ms_network_not_found', $domain, $path );

return false;
	}

// During activation of a new subdomain, the requested site does not yet exist.
	if ( empty( $current_blog ) && wp_installing() ) {
		$current_blog          = new stdClass();
		$current_blog->blog_id = 1;
		$blog_id               = 1;
		$current_blog->public  = 1;
	}

// No site has been found, bail.
	if ( empty( $current_blog ) ) {
		// We're going to redirect to the network URL, with some possible modifications.
		$scheme      = is_ssl() ? 'https' : 'http';
		$destination = "$scheme://{$current_site->domain}{$current_site->path}";

/**
		 * Fires when a network can be determined but a site cannot.
		 *
		 * At the time of this action, the only recourse is to redirect somewhere
		 * and exit. If you want to declare a particular site, do so earlier.
		 *
		 * @since 3.9.0
		 *
		 * @param WP_Network $current_site The network that had been determined.
		 * @param string     $domain       The domain used to search for a site.
		 * @param string     $path         The path used to search for a site.
		 */
		do_action( 'ms_site_not_found', $current_site, $domain, $path );

if ( $subdomain && ! defined( 'NOBLOGREDIRECT' ) ) {
			// For a "subdomain" installation, redirect to the signup form specifically.
			$destination .= 'wp-signup.php?new=' . str_replace( '.' . $current_site->domain, '', $domain );
		} elseif ( $subdomain ) {
			/*
			 * For a "subdomain" installation, the NOBLOGREDIRECT constant
			 * can be used to avoid a redirect to the signup form.
			 * Using the ms_site_not_found action is preferred to the constant.
			 */
			if ( '%siteurl%' !== NOBLOGREDIRECT ) {
				$destination = NOBLOGREDIRECT;
			}
		} elseif ( 0 === strcasecmp( $current_site->domain, $domain ) ) {
			/*
			 * If the domain we were searching for matches the network's domain,
			 * it's no use redirecting back to ourselves -- it'll cause a loop.
			 * As we couldn't find a site, we're simply not installed.
			 */
			return false;
		}

return $destination;
	}

// Figure out the current network's main site.
	if ( empty( $current_site->blog_id ) ) {
		$current_site->blog_id = get_main_site_id( $current_site->id );
	}

return true;
}

/**
 * Displays a failure message.
 *
 * Used when a blog's tables do not exist. Checks for a missing $wpdb->site table as well.
 *
 * @access private
 * @since 3.0.0
 * @since 4.4.0 The `$domain` and `$path` parameters were added.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $domain The requested domain for the error to reference.
 * @param string $path   The requested path for the error to reference.
 */
function ms_not_installed( $domain, $path ) {
	global $wpdb;

if ( ! is_admin() ) {
		dead_db();
	}

wp_load_translations_early();

$title = __( 'Error establishing a database connection' );

$msg = '<h1>' . $title . '</h1>';
	$msg .= '' . __( 'If your site does not display, please contact the owner of this network.' ) . '';
	$msg .= ' ' . __( 'If you are the owner of this network please check that your host&#8217;s database server is running properly and all tables are error free.' ) . '';
	$query = $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $wpdb->site ) );
	if ( ! $wpdb->get_var( $query ) ) {
		$msg .= '' . sprintf(
			/* translators: %s: Table name. */
			__( 'Database tables are missing. This means that your host&#8217;s database server is not running, WordPress was not installed properly, or someone deleted %s. You really should look at your database now.' ),
			'<code>' . $wpdb->site . '</code>'
		) . '';
	} else {
		$msg .= '' . sprintf(
			/* translators: 1: Site URL, 2: Table name, 3: Database name. */
			__( 'Could not find site %1$s. Searched for table %2$s in database %3$s. Is that right?' ),
			'<code>' . rtrim( $domain . $path, '/' ) . '</code>',
			'<code>' . $wpdb->blogs . '</code>',
			'<code>' . DB_NAME . '</code>'
		) . '';
	}
	$msg .= '' . __( 'What do I do now?' ) . ' ';
	$msg .= sprintf(
		/* translators: %s: Documentation URL. */
		__( 'Read the <a href="%s" target="_blank">Debugging a WordPress Network</a> article. Some of the suggestions there may help you figure out what went wrong.' ),
		__( 'https://developer.wordpress.org/advanced-administration/debug/debug-network/' )
	);
	$msg .= ' ' . __( 'If you are still stuck with this message, then check that your database contains the following tables:' ) . '<ul>';
	foreach ( $wpdb->tables( 'global' ) as $t => $table ) {
		if ( 'sitecategories' === $t ) {
			continue;
		}
		$msg .= '<li>' . $table . '</li>';
	}
	$msg .= '</ul>';

wp_die( $msg, $title, array( 'response' => 500 ) );
}

/**
 * This deprecated function formerly set the site_name property of the $current_site object.
 *
 * This function simply returns the object, as before.
 * The bootstrap takes care of setting site_name.
 *
 * @access private
 * @since 3.0.0
 * @deprecated 3.9.0 Use get_current_site() instead.
 *
 * @param WP_Network $current_site
 * @return WP_Network
 */
function get_current_site_name( $current_site ) {
	_deprecated_function( __FUNCTION__, '3.9.0', 'get_current_site()' );
	return $current_site;
}

/**
 * This deprecated function managed much of the site and network loading in multisite.
 *
 * The current bootstrap code is now responsible for parsing the site and network load as
 * well as setting the global $current_site object.
 *
 * @access private
 * @since 3.0.0
 * @deprecated 3.9.0
 *
 * @global WP_Network $current_site
 *
 * @return WP_Network
 */
function wpmu_current_site() {
	global $current_site;
	_deprecated_function( __FUNCTION__, '3.9.0' );
	return $current_site;
}

/**
 * Retrieves an object containing information about the requested network.
 *
 * @since 3.9.0
 * @deprecated 4.7.0 Use get_network()
 * @see get_network()
 *
 * @internal In 4.6.0, converted to use get_network()
 *
 * @param object|int $network The network's database row or ID.
 * @return WP_Network|false Object containing network information if found, false if not.
 */
function wp_get_network( $network ) {
	_deprecated_function( __FUNCTION__, '4.7.0', 'get_network()' );

$network = get_network( $network );
	if ( null === $network ) {
		return false;
	}

return $network;
}

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