WP_Network

24#[AllowDynamicProperties]25class WP_Network {26 27	/**28	 * Network ID.29	 *30	 * @since 4.4.031	 * @since 4.6.0 Converted from public to private to explicitly enable more intuitive32	 *              access via magic methods. As part of the access change, the type was33	 *              also changed from `string` to `int`.34	 * @var int35	 */36	private $id;37 38	/**39	 * Domain of the network.40	 *41	 * @since 4.4.042	 * @var string43	 */44	public $domain = '';45 46	/**47	 * Path of the network.48	 *49	 * @since 4.4.050	 * @var string51	 */52	public $path = '';53 54	/**55	 * The ID of the network's main site.56	 *57	 * Named "blog" vs. "site" for legacy reasons. A main site is mapped to58	 * the network when the network is created.59	 *60	 * A numeric string, for compatibility reasons.61	 *62	 * @since 4.4.063	 * @var string64	 */65	private $blog_id = '0';66 67	/**68	 * Domain used to set cookies for this network.69	 *70	 * @since 4.4.071	 * @var string72	 */73	public $cookie_domain = '';74 75	/**76	 * Name of this network.77	 *78	 * Named "site" vs. "network" for legacy reasons.79	 *80	 * @since 4.4.081	 * @var string82	 */83	public $site_name = '';84 85	/**86	 * Retrieves a network from the database by its ID.87	 *88	 * @since 4.4.089	 *90	 * @global wpdb $wpdb WordPress database abstraction object.91	 *92	 * @param int $network_id The ID of the network to retrieve.93	 * @return WP_Network|false The network's object if found. False if not.94	 */95	public static function get_instance( $network_id ) {96		global $wpdb;97 98		$network_id = (int) $network_id;99		if ( ! $network_id ) {100			return false;101		}102 103		$_network = wp_cache_get( $network_id, 'networks' );