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network_domain_check()

Check for an existing network.

Description

Return

(string|false) Base domain if network exists, otherwise false.

Source

File: wp-admin/includes/network.php

function network_domain_check() {
	global $wpdb;

	$sql = $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $wpdb->site ) );
	if ( $wpdb->get_var( $sql ) ) {
		return $wpdb->get_var( "SELECT domain FROM $wpdb->site ORDER BY id ASC LIMIT 1" );
	}
	return false;
}

Changelog

Version Description
3.0.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/network_domain_check