yii\web\Response::clear PHP Method

    public function clear()
    {
        $this->_headers = null;
        $this->_cookies = null;
        $this->_statusCode = 200;
        $this->statusText = 'OK';
        $this->data = null;
        $this->stream = null;
        $this->content = null;
        $this->isSent = false;
    }