/** * Returns a reference to the global JWeb object, only creating it if it doesn't already exist. * * This method must be invoked as: $web = JWeb::getInstance(); * * @param string $name The name (optional) of the JWeb class to instantiate. * * @return JWeb * * @since 11.3 */ public static function getInstance($name = null) { // Only create the object if it doesn't exist. if (empty(self::$instance)) { if (class_exists($name) && is_subclass_of($name, 'JWeb')) { self::$instance = new $name(); } else { self::$instance = new JWeb(); } } return self::$instance; }