WordPress at a glance
function is not described

get_network() WP 4.6.0

Retrieves network data given a network ID or network object.

Network data will be cached and returned after being passed through a filter. If the provided network is empty, the current network global will be used.

  • Global. WP_Network. $current_site
Hooks in function
Return

WP_Network/null. The network object or null if not found.

Usage

get_network( $network );
$network(WP_Network/int/null)
Network to retrieve.
Default: current network

Code of get network: wp-includes/ms-blogs.php VER 5.0.3

<?php
function get_network( $network = null ) {
	global $current_site;
	if ( empty( $network ) && isset( $current_site ) ) {
		$network = $current_site;
	}

	if ( $network instanceof WP_Network ) {
		$_network = $network;
	} elseif ( is_object( $network ) ) {
		$_network = new WP_Network( $network );
	} else {
		$_network = WP_Network::get_instance( $network );
	}

	if ( ! $_network ) {
		return null;
	}

	/**
	 * Fires after a network is retrieved.
	 *
	 * @since 4.6.0
	 *
	 * @param WP_Network $_network Network data.
	 */
	$_network = apply_filters( 'get_network', $_network );

	return $_network;
}