Fuel\Event\Listener::__invoke PHP Method

    public function __invoke($event, $args)
    {
        $handler = $this->handler;
        // Store the original event
        $original_event = $this->event;
        // Set the triggered event
        // This is needed when 'all' events are fired
        $this->event = $event;
        if ($this->context) {
            if (!$handler instanceof \Closure) {
                throw new Exception('Handler must be a Closure in order to bind a contaxt to.');
            }
            if (!($handler = $handler->bindTo($this->context, $this->context))) {
                throw new Exception('Context could not be bound to handler.');
            }
        }
        // Prepend self to the arguments array
        array_unshift($args, $this);
        // Fetch the handler result
        $result = call_user_func_array($handler, $args);
        // Restore the old event name
        $this->event = $original_event;
        return $result;
    }