Elgg\Http\ResponseFactory::send PHP Метод

    public function send(Response $response)
    {
        if ($this->response_sent) {
            if ($this->response_sent !== $response) {
                _elgg_services()->logger->error('Unable to send the following response: ' . PHP_EOL . (string) $response . PHP_EOL . 'because another response has already been sent: ' . PHP_EOL . (string) $this->response_sent);
            }
        } else {
            if (!elgg_trigger_before_event('send', 'http_response', $response)) {
                return false;
            }
            if (!$this->transport->send($response)) {
                return false;
            }
            elgg_trigger_after_event('send', 'http_response', $response);
            $this->response_sent = $response;
        }
        return $this->response_sent;
    }