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network_domain_check() – Function | Developer.WordPress.org
network_domain_check(): string|false
Check for an existing network.
string|false Base domain if network exists, otherwise false.
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;
}
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Version Description 3.0.0 Introduced.
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