PHP wp_is_large_network函数代码示例

/**
 * Populate the BP blogs table with existing blogs.
 *
 * @since BuddyPress (1.0.0)
 *
 * @global object $wpdb WordPress database object.
 * @uses get_users()
 * @uses bp_blogs_record_blog()
 *
 * @return bool
 */
function bp_blogs_record_existing_blogs()
{
    global $wpdb;
    // Query for all sites in network
    if (is_multisite()) {
        // Get blog ID's if not a large network
        if (!wp_is_large_network()) {
            $blog_ids = $wpdb->get_col($wpdb->prepare("SELECT blog_id FROM {$wpdb->base_prefix}blogs WHERE mature = 0 AND spam = 0 AND deleted = 0 AND site_id = %d", $wpdb->siteid));
            // If error running this query, set blog ID's to false
            if (is_wp_error($blog_ids)) {
                $blog_ids = false;
            }
            // Large networks are not currently supported
        } else {
            $blog_ids = false;
        }
        // Record a single site
    } else {
        $blog_ids = $wpdb->blogid;
    }
    // Bail if there are no blogs in the network
    if (empty($blog_ids)) {
        return false;
    }
    // Get BuddyPress
    $bp = buddypress();
    // Truncate user blogs table
    $truncate = $wpdb->query("TRUNCATE {$bp->blogs->table_name}");
    if (is_wp_error($truncate)) {
        return false;
    }
    // Truncate user blogsmeta table
    $truncate = $wpdb->query("TRUNCATE {$bp->blogs->table_name_blogmeta}");
    if (is_wp_error($truncate)) {
        return false;
    }
    // Loop through users of blogs and record the relationship
    foreach ((array) $blog_ids as $blog_id) {
        // Ensure that the cache is clear after the table TRUNCATE above
        wp_cache_delete($blog_id, 'blog_meta');
        // Get all users
        $users = get_users(array('blog_id' => $blog_id));
        // Continue on if no users exist for this site (how did this happen?)
        if (empty($users)) {
            continue;
        }
        // Loop through users and record their relationship to this blog
        foreach ((array) $users as $user) {
            bp_blogs_add_user_to_blog($user->ID, false, $blog_id);
        }
    }
    /**
     * Fires after the BP blogs tables have been populated with existing blogs.
     *
     * @since BuddyPress (2.4.0)
     */
    do_action('bp_blogs_recorded_existing_blogs');
    // No errors
    return true;
}

	/**
	 *
	 * @global string $usersearch
	 * @global string $role
	 * @global wpdb   $wpdb
	 * @global string $mode
	 */
	public function prepare_items() {
		global $usersearch, $role, $wpdb, $mode;

		$usersearch = isset( $_REQUEST['s'] ) ? wp_unslash( trim( $_REQUEST['s'] ) ) : '';

		$users_per_page = $this->get_items_per_page( 'users_network_per_page' );

		$role = isset( $_REQUEST['role'] ) ? $_REQUEST['role'] : '';

		$paged = $this->get_pagenum();

		$args = array(
			'number' => $users_per_page,
			'offset' => ( $paged-1 ) * $users_per_page,
			'search' => $usersearch,
			'blog_id' => 0,
			'fields' => 'all_with_meta'
		);

		if ( wp_is_large_network( 'users' ) )
			$args['search'] = ltrim( $args['search'], '*' );

		if ( $role == 'super' ) {
			$logins = implode( "', '", get_super_admins() );
			$args['include'] = $wpdb->get_col( "SELECT ID FROM $wpdb->users WHERE user_login IN ('$logins')" );
		}

		/*
		 * If the network is large and a search is not being performed,
		 * show only the latest users with no paging in order to avoid
		 * expensive count queries.
		 */
		if ( !$usersearch && wp_is_large_network( 'users' ) ) {
			if ( !isset($_REQUEST['orderby']) )
				$_GET['orderby'] = $_REQUEST['orderby'] = 'id';
			if ( !isset($_REQUEST['order']) )
				$_GET['order'] = $_REQUEST['order'] = 'DESC';
			$args['count_total'] = false;
		}

		if ( isset( $_REQUEST['orderby'] ) )
			$args['orderby'] = $_REQUEST['orderby'];

		if ( isset( $_REQUEST['order'] ) )
			$args['order'] = $_REQUEST['order'];

		$mode = empty( $_REQUEST['mode'] ) ? 'list' : $_REQUEST['mode'];

		// Query the user IDs for this page
		$wp_user_search = new WP_User_Query( $args );

		$this->items = $wp_user_search->get_results();

		$this->set_pagination_args( array(
			'total_items' => $wp_user_search->get_total(),
			'per_page' => $users_per_page,
		) );
	}

 /**
  *
  * @global string $usersearch
  * @global string $role
  * @global wpdb   $wpdb
  * @global string $mode
  */
 public function prepare_items()
 {
     global $usersearch, $role, $wpdb, $mode;
     $usersearch = isset($_REQUEST['s']) ? wp_unslash(trim($_REQUEST['s'])) : '';
     $users_per_page = $this->get_items_per_page('users_network_per_page');
     $role = isset($_REQUEST['role']) ? $_REQUEST['role'] : '';
     $paged = $this->get_pagenum();
     $args = array('number' => $users_per_page, 'offset' => ($paged - 1) * $users_per_page, 'search' => $usersearch, 'blog_id' => 0, 'fields' => 'all_with_meta');
     if (wp_is_large_network('users')) {
         $args['search'] = ltrim($args['search'], '*');
     } else {
         if ('' !== $args['search']) {
             $args['search'] = trim($args['search'], '*');
             $args['search'] = '*' . $args['search'] . '*';
         }
     }
     if ($role === 'super') {
         $logins = implode("', '", get_super_admins());
         $args['include'] = $wpdb->get_col("SELECT ID FROM {$wpdb->users} WHERE user_login IN ('{$logins}')");
     }
     /*
      * If the network is large and a search is not being performed,
      * show only the latest users with no paging in order to avoid
      * expensive count queries.
      */
     if (!$usersearch && wp_is_large_network('users')) {
         if (!isset($_REQUEST['orderby'])) {
             $_GET['orderby'] = $_REQUEST['orderby'] = 'id';
         }
         if (!isset($_REQUEST['order'])) {
             $_GET['order'] = $_REQUEST['order'] = 'DESC';
         }
         $args['count_total'] = false;
     }
     if (isset($_REQUEST['orderby'])) {
         $args['orderby'] = $_REQUEST['orderby'];
     }
     if (isset($_REQUEST['order'])) {
         $args['order'] = $_REQUEST['order'];
     }
     if (!empty($_REQUEST['mode'])) {
         $mode = $_REQUEST['mode'] === 'excerpt' ? 'excerpt' : 'list';
         set_user_setting('network_users_list_mode', $mode);
     } else {
         $mode = get_user_setting('network_users_list_mode', 'list');
     }
     /** This filter is documented in wp-admin/includes/class-wp-users-list-table.php */
     $args = apply_filters('users_list_table_query_args', $args);
     // Query the user IDs for this page
     $wp_user_search = new WP_User_Query($args);
     $this->items = $wp_user_search->get_results();
     $this->set_pagination_args(array('total_items' => $wp_user_search->get_total(), 'per_page' => $users_per_page));
 }

 /**
  * Return translated context labels
  *
  * @return array Context label translations
  */
 public static function get_context_labels()
 {
     $labels = array();
     if (is_multisite() && !wp_is_large_network()) {
         $blogs = wp_get_sites();
         foreach ($blogs as $blog) {
             $blog_details = get_blog_details($blog['blog_id']);
             $key = sanitize_key($blog_details->blogname);
             $labels[$key] = $blog_details->blogname;
         }
     }
     return $labels;
 }

 /**
  * Run the deactivation script on every blog for a multisite install
  *
  * @return void
  */
 protected function multisite_deactivate()
 {
     /** @var wpdb $wpdb */
     global $wpdb;
     $site = get_current_site();
     $blog_ids = $wpdb->get_col($wpdb->prepare("SELECT blog_id FROM {$wpdb->blogs} WHERE site_id=%d", $site->id));
     $large = wp_is_large_network();
     foreach ($blog_ids as $blog) {
         set_time_limit(30);
         switch_to_blog($blog);
         $large ? $this->short_blog_deactivate() : $this->blog_deactivate();
         restore_current_blog();
     }
 }

 /**
  * Thanks to Jeremy Felt.
  *
  * Source: https://jeremyfelt.com/2015/07/17/flushing-rewrite-rules-in-wordpress-multisite-for-fun-and-profit/
  */
 public function flush_rules()
 {
     if (wp_is_large_network()) {
         return;
     }
     if (isset($_GET['action']) && $_GET['action'] == 'flush-rules') {
         $sites = wp_get_sites(array('network' => 1, 'limit' => 1000));
         foreach ($sites as $site) {
             switch_to_blog($site['blog_id']);
             delete_option('rewrite_rules');
             restore_current_blog();
         }
     }
 }

 public function update_options_callback()
 {
     check_ajax_referer($_POST['referer'], 'nonce');
     if (isset($_POST['multisite'])) {
         $this->multisite = TRUE;
     }
     $this->update_option_boolean('display_deprecated');
     $this->update_option_boolean('remove_nonstandard_capabilities_restore');
     $this->update_option_boolean('override_edit_permissions');
     $this->update_option_boolean('disable_navigation_menu_permissions');
     if ($this->multisite && wp_is_large_network()) {
         $this->update_option_boolean('enable_large_network_functionalities');
     }
     if ($this->main->enable_multisite_only_options($this->multisite)) {
         $this->update_option_boolean('remove_data_on_uninstall', TRUE);
     }
     if (isset($_POST['custom-post-types'])) {
         $custom_post_types = $_POST['custom-post-types'];
         if (is_array($custom_post_types)) {
             $post_type_values = $this->customize_permission_custom_post_types();
             foreach ($custom_post_types as $key => $value) {
                 if ($value === 'true') {
                     if (!in_array($key, $post_type_values)) {
                         $post_type_values[] = $key;
                     }
                 } else {
                     if (in_array($key, $post_type_values)) {
                         $post_type_values = array_diff($post_type_values, array($key));
                     }
                 }
             }
             do_action('wpfront_ure_update_customize_permission_custom_post_types', $post_type_values, $this->customize_permission_custom_post_types());
             $this->update_option('customize_permission_custom_post_types', implode(',', $post_type_values));
         }
     }
     if ($this->multisite) {
         echo network_admin_url('admin.php?page=' . self::MENU_SLUG . '&settings-updated=true');
     } else {
         echo admin_url('admin.php?page=' . self::MENU_SLUG . '&settings-updated=true');
     }
     die;
 }

/**
 * Populate the $wpmdbpro_multisite_tools global with an instance of the WPMDBPro_Multisite_Tools class and return it.
 *
 * @param bool $cli
 *
 * @return WPMDBPro_Multisite_Tools The one true global instance of the WPMDBPro_Multisite_Tools class.
 */
function wp_migrate_db_pro_multisite_tools($cli = false)
{
    global $wpmdbpro_multisite_tools;
    if (!class_exists('WPMDBPro_Addon')) {
        return false;
    }
    // Allows hooks to bypass the regular admin / ajax checks to force load the addon (required for the CLI addon).
    $force_load = apply_filters('wp_migrate_db_pro_multisite_tools_force_load', false);
    if (false === $force_load && !is_null($wpmdbpro_multisite_tools)) {
        return $wpmdbpro_multisite_tools;
    }
    if (false === $force_load && (!function_exists('wp_migrate_db_pro_loaded') || !wp_migrate_db_pro_loaded() || is_multisite() && wp_is_large_network())) {
        return false;
    }
    load_plugin_textdomain('wp-migrate-db-pro-multisite-tools', false, dirname(plugin_basename(__FILE__)) . '/languages/');
    require_once dirname(__FILE__) . '/class/wpmdbpro-multisite-tools.php';
    if ($cli) {
        require_once dirname(__FILE__) . '/class/cli/wpmdbpro-multisite-tools-cli.php';
        $wpmdbpro_multisite_tools = new WPMDBPro_Multisite_Tools_CLI(__FILE__);
    } else {
        $wpmdbpro_multisite_tools = new WPMDBPro_Multisite_Tools(__FILE__);
    }
    return $wpmdbpro_multisite_tools;
}

 /**
  * Checks if a blog exists and is not marked as deleted.
  *
  * @link   http://wordpress.stackexchange.com/q/138300/73
  * @param  int $blog_id
  * @param  int $site_id
  * @return bool
  */
 function blog_exists($blog_id, $site_id = 0)
 {
     global $wpdb;
     static $cache = array();
     $site_id = (int) $site_id;
     if (!function_exists('get_current_site')) {
         return false;
     }
     if (0 === $site_id) {
         $current_site = get_current_site();
         $site_id = $current_site->id;
     }
     if (empty($cache) or empty($cache[$site_id])) {
         if (wp_is_large_network()) {
             // we do not test large sites.
             return TRUE;
         }
         $query = "SELECT `blog_id` FROM {$wpdb->blogs}\n                    WHERE site_id = {$site_id} AND deleted = 0";
         $result = $wpdb->get_col($query);
         // Make sure the array is always filled with something.
         if (empty($result)) {
             $cache[$site_id] = array('do not check again');
         } else {
             $cache[$site_id] = $result;
         }
     }
     return in_array($blog_id, $cache[$site_id]);
 }

/**
 * Return an array of sites for a network or networks.
 *
 * @since 3.7.0
 *
 * @global wpdb $wpdb
 *
 * @param array $args {
 *     Array of default arguments. Optional.
 *
 *     @type int|array $network_id A network ID or array of network IDs. Set to null to retrieve sites
 *                                 from all networks. Defaults to current network ID.
 *     @type int       $public     Retrieve public or non-public sites. Default null, for any.
 *     @type int       $archived   Retrieve archived or non-archived sites. Default null, for any.
 *     @type int       $mature     Retrieve mature or non-mature sites. Default null, for any.
 *     @type int       $spam       Retrieve spam or non-spam sites. Default null, for any.
 *     @type int       $deleted    Retrieve deleted or non-deleted sites. Default null, for any.
 *     @type int       $limit      Number of sites to limit the query to. Default 100.
 *     @type int       $offset     Exclude the first x sites. Used in combination with the $limit parameter. Default 0.
 * }
 * @return array An empty array if the install is considered "large" via wp_is_large_network(). Otherwise,
 *               an associative array of site data arrays, each containing the site (network) ID, blog ID,
 *               site domain and path, dates registered and modified, and the language ID. Also, boolean
 *               values for whether the site is public, archived, mature, spam, and/or deleted.
 */
function wp_get_sites($args = array())
{
    global $wpdb;
    if (wp_is_large_network()) {
        return array();
    }
    $defaults = array('network_id' => $wpdb->siteid, 'public' => null, 'archived' => null, 'mature' => null, 'spam' => null, 'deleted' => null, 'limit' => 100, 'offset' => 0);
    $args = wp_parse_args($args, $defaults);
    $query = "SELECT * FROM {$wpdb->blogs} WHERE 1=1 ";
    if (isset($args['network_id']) && (is_array($args['network_id']) || is_numeric($args['network_id']))) {
        $network_ids = implode(',', wp_parse_id_list($args['network_id']));
        $query .= "AND site_id IN ({$network_ids}) ";
    }
    if (isset($args['public'])) {
        $query .= $wpdb->prepare("AND public = %d ", $args['public']);
    }
    if (isset($args['archived'])) {
        $query .= $wpdb->prepare("AND archived = %d ", $args['archived']);
    }
    if (isset($args['mature'])) {
        $query .= $wpdb->prepare("AND mature = %d ", $args['mature']);
    }
    if (isset($args['spam'])) {
        $query .= $wpdb->prepare("AND spam = %d ", $args['spam']);
    }
    if (isset($args['deleted'])) {
        $query .= $wpdb->prepare("AND deleted = %d ", $args['deleted']);
    }
    if (isset($args['limit']) && $args['limit']) {
        if (isset($args['offset']) && $args['offset']) {
            $query .= $wpdb->prepare("LIMIT %d , %d ", $args['offset'], $args['limit']);
        } else {
            $query .= $wpdb->prepare("LIMIT %d ", $args['limit']);
        }
    }
    $site_results = $wpdb->get_results($query, ARRAY_A);
    return $site_results;
}

/**
 * Wrapper for wp_is_large_network() that supports non-MS.
 *
 * @since 1.1.2
 */
function invite_anyone_is_large_network()
{
    if (function_exists('wp_is_large_network')) {
        $is_large_network = wp_is_large_network('users');
        $count = get_user_count();
    } else {
        global $wpdb;
        $count = get_transient('ia_user_count');
        if (false === $count) {
            $count = $wpdb->get_var("SELECT COUNT(ID) FROM {$wpdb->users} WHERE user_status = '0'");
            set_transient('ia_user_count', $count, 60 * 60 * 24);
        }
        $is_large_network = $count > 10000;
        return apply_filters('invite_anyone_is_large_network', $count > 10000, $count);
    }
    return apply_filters('invite_anyone_is_large_network', $is_large_network, $count);
}

//.........这里部分代码省略.........
             $this->query_limit = $wpdb->prepare("LIMIT %d, %d", $qv['offset'], $qv['number']);
         } else {
             $this->query_limit = $wpdb->prepare("LIMIT %d", $qv['number']);
         }
     }
     $search = '';
     if (isset($qv['search'])) {
         $search = trim($qv['search']);
     }
     if ($search) {
         $leading_wild = ltrim($search, '*') != $search;
         $trailing_wild = rtrim($search, '*') != $search;
         if ($leading_wild && $trailing_wild) {
             $wild = 'both';
         } elseif ($leading_wild) {
             $wild = 'leading';
         } elseif ($trailing_wild) {
             $wild = 'trailing';
         } else {
             $wild = false;
         }
         if ($wild) {
             $search = trim($search, '*');
         }
         $search_columns = array();
         if ($qv['search_columns']) {
             $search_columns = array_intersect($qv['search_columns'], array('ID', 'user_login', 'user_email', 'user_url', 'user_nicename'));
         }
         if (!$search_columns) {
             if (false !== strpos($search, '@')) {
                 $search_columns = array('user_email');
             } elseif (is_numeric($search)) {
                 $search_columns = array('user_login', 'ID');
             } elseif (preg_match('|^https?://|', $search) && !(is_multisite() && wp_is_large_network('users'))) {
                 $search_columns = array('user_url');
             } else {
                 $search_columns = array('user_login', 'user_nicename');
             }
         }
         /**
          * Filter the columns to search in a WP_User_Query search.
          *
          * The default columns depend on the search term, and include 'user_email',
          * 'user_login', 'ID', 'user_url', and 'user_nicename'.
          *
          * @since 3.6.0
          *
          * @param array         $search_columns Array of column names to be searched.
          * @param string        $search         Text being searched.
          * @param WP_User_Query $this           The current WP_User_Query instance.
          */
         $search_columns = apply_filters('user_search_columns', $search_columns, $search, $this);
         $this->query_where .= $this->get_search_sql($search, $search_columns, $wild);
     }
     $blog_id = 0;
     if (isset($qv['blog_id'])) {
         $blog_id = absint($qv['blog_id']);
     }
     if (isset($qv['who']) && 'authors' == $qv['who'] && $blog_id) {
         $qv['meta_key'] = $wpdb->get_blog_prefix($blog_id) . 'user_level';
         $qv['meta_value'] = 0;
         $qv['meta_compare'] = '!=';
         $qv['blog_id'] = $blog_id = 0;
         // Prevent extra meta query
     }
     $role = '';

_e('Network|Multisite Sitewide Login Security Settings', 'bulletproof-security');
?>
</label></strong><br />  
<input type="submit" name="Submit-Net-LSM" class="button bps-button" style="margin:10px 0px 20px 0px;" value="<?php 
esc_attr_e('Save Network LSM Options Sitewide', 'bulletproof-security');
?>
" />
</div>
</form>

<?php 
// Network|Multisite: update/save Login Security DB option settings for all sites
if (isset($_POST['Submit-Net-LSM']) && current_user_can('manage_options')) {
    check_admin_referer('bulletproof_security_net_lsm');
    if (is_multisite()) {
        if (wp_is_large_network()) {
            echo '<div id="message" class="updated" style="border:1px solid #999999;margin-left:70px;background-color:#ffffe0;"><p>';
            $text = '<font color="red"><strong>' . __('Error: Your Network site exceeds the default WP criteria for a large network site. Either you have more than 10,000 users or more than 10,000 sites. Please post a new forum thread in the BPS plugin support forum on wordpress.org for assistance.', 'bulletproof-security') . '</strong></font>';
            echo $text;
            echo '</p></div>';
            return;
        }
        $successMessage = __(' LSM DB Options created or updated Successfully!', 'bulletproof-security');
        $successTextBegin = '<font color="green"><strong>';
        $successTextEnd = '</strong></font><br>';
        $network_ids = wp_get_sites();
        foreach ($network_ids as $key => $value) {
            $net_id = $value['blog_id'];
            $bps_Net_lsm = 'bulletproof_security_options_login_security';
            $BPS_Net_LSM_Options = array('bps_max_logins' => '3', 'bps_lockout_duration' => '60', 'bps_manual_lockout_duration' => '60', 'bps_max_db_rows_display' => '', 'bps_login_security_OnOff' => 'On', 'bps_login_security_logging' => 'logLockouts', 'bps_login_security_errors' => 'wpErrors', 'bps_login_security_remaining' => 'On', 'bps_login_security_pw_reset' => 'enable', 'bps_login_security_sort' => 'ascending');
            if (!get_blog_option($net_id, $bps_Net_lsm)) {

    $help .= '<p>' . __('You must assign a password to the new user, which they can change after logging in. The username, however, cannot be changed.') . '</p>' . '<p>' . __('New users will receive an email letting them know they&#8217;ve been added as a user for your site. By default, this email will also contain their password. Uncheck the box if you don&#8217;t want the password to be included in the welcome email.') . '</p>';
}
$help .= '<p>' . __('Remember to click the Add New User button at the bottom of this screen when you are finished.') . '</p>';
get_current_screen()->add_help_tab(array('id' => 'overview', 'title' => __('Overview'), 'content' => $help));
get_current_screen()->add_help_tab(array('id' => 'user-roles', 'title' => __('User Roles'), 'content' => '<p>' . __('Here is a basic overview of the different user roles and the permissions associated with each one:') . '</p>' . '<ul>' . '<li>' . __('Administrators have access to all the administration features.') . '</li>' . '<li>' . __('Editors can publish posts, manage posts as well as manage other people&#8217;s posts, etc.') . '</li>' . '<li>' . __('Authors can publish and manage their own posts, and are able to upload files.') . '</li>' . '<li>' . __('Contributors can write and manage their posts but not publish posts or upload media files.') . '</li>' . '<li>' . __('Subscribers can read comments/comment/receive newsletters, etc. but cannot create regular site content.') . '</li>' . '</ul>'));
get_current_screen()->set_help_sidebar('<p><strong>' . __('For more information:') . '</strong></p>' . '<p>' . __('<a href="http://codex.wordpress.org/Users_Add_New_Screen" target="_blank">Documentation on Adding New Users</a>') . '</p>' . '<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>');
wp_enqueue_script('wp-ajax-response');
wp_enqueue_script('user-profile');
/**
 * Filter whether to enable user auto-complete for non-super admins in Multisite.
 *
 * @since 3.4.0
 *
 * @param bool $enable Whether to enable auto-complete for non-super admins. Default false.
 */
if (is_multisite() && current_user_can('promote_users') && !wp_is_large_network('users') && (is_super_admin() || apply_filters('autocomplete_users_for_site_admins', false))) {
    wp_enqueue_script('user-suggest');
}
require_once ABSPATH . 'wp-admin/admin-header.php';
if (isset($_GET['update'])) {
    $messages = array();
    if (is_multisite()) {
        switch ($_GET['update']) {
            case "newuserconfirmation":
                $messages[] = __('Invitation email sent to new user. A confirmation link must be clicked before their account is created.');
                break;
            case "add":
                $messages[] = __('Invitation email sent to user. A confirmation link must be clicked for them to be added to your site.');
                break;
            case "addnoconfirmation":
                $messages[] = __('User has been added to your site.');

 /**
  * Upgrades the settings.
  * 
  * ## OPTIONS
  * 
  * [--network-wide]
  * : Perform the settings upgrade on all blogs of the network.
  * 
  * ## EXAMPLES
  * 
  *     wp amt upgrade
  *     wp amt upgrade --network-wide
  *
  * @synopsis [--network-wide]
  */
 function upgrade($args, $assoc_args)
 {
     // Multisite
     if ($assoc_args['network-wide']) {
         if (is_multisite()) {
             // Check for large network
             if (wp_is_large_network($using = 'sites')) {
                 WP_CLI::error('Too large network. Aborting...');
             }
             $blog_list = wp_get_sites();
             //var_dump($blog_list);
             if (empty($blog_list)) {
                 WP_CLI::error('No blogs could be found.');
                 // Check for large network is done above
             }
             foreach ($blog_list as $blog) {
                 switch_to_blog($blog['blog_id']);
                 $plugin_info = get_plugin_data(plugin_dir_path(__FILE__) . 'add-meta-tags.php', $markup = true, $translate = true);
                 WP_CLI::line('Upgrading settings of: ' . get_bloginfo('name') . ' - (ID: ' . $blog['blog_id'] . ')');
                 amt_plugin_upgrade();
                 restore_current_blog();
             }
             WP_CLI::success('Add-Meta-Tags settings have been upgraded network wide.');
         } else {
             WP_CLI::warning('No network detected. Reverting to single site mode.');
         }
     }
     if (!is_multisite()) {
         // Single site installation
         amt_plugin_upgrade();
         WP_CLI::success('Add-Meta-Tags settings have been upgraded.');
     }
     /*
             if ( is_multisite() ) {
                 $blog_list = get_blog_list( 0, 'all' );
             } else {
                 $blog_list   = array();
                 $blog_list[] = array( 'blog_id' => 1 );
             }
     
             foreach ( $blog_list as $blog ) {
                 if ( is_multisite() ) {
                     switch_to_blog( $blog['blog_id'] );
                 }
                 $plugin_info = get_plugin_data( plugin_dir_path( __FILE__ ) . 'add-meta-tags.php', $markup = true, $translate = true );
                 WP_CLI::line( 'Upgrading settings of: ' . get_bloginfo('name') . ' - (ID: ' . $blog['blog_id'] . ')' );
                 amt_plugin_upgrade();
                 if ( is_multisite() ) {
                     restore_current_blog();
                 }
             }
     */
     // get_plugin_data( $plugin_file, $markup = true, $translate = true )
     //$plugin info = get_plugin_data( AMT_PLUGIN_DIR . 'add-meta-tags.php', $markup = true, $translate = true );
     // WP_CLI::line( ' ' );
     // WP_CLI::line( count( $field_groups ) . ' field groups found for blog_id ' . $blog['blog_id'] );
     // Print a success message
     //WP_CLI::success( "Operation complete." );
 }