response->addHeader('Cache-Control: no-cache, must-revalidate'); $this->response->addHeader('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); $this->response->addHeader('Content-type: application/json; charset=utf-8'); $this->response->addHeader('X-Openbay-Header: hello'); http_response_code(200); $this->response->setOutput(json_encode(array('reply' => 'hello'))); } }