/** * Singleton Pattern * * @return SchemaOrg_Breadcrumbs instance */ public static function instance() { if (self::$instance === null) { self::$instance = new self(); } return self::$instance; }
function instantiate_schemaorg_breadcrumb_class() { if (function_exists('yoast_breadcrumb')) { SchemaOrg_Breadcrumbs::instance(); } }