Proxy\Proxy::header_callback PHP Method

    private function header_callback($ch, $headers)
    {
        $parts = explode(":", $headers, 2);
        // extract status code
        if (preg_match('/HTTP\\/1.\\d+ (\\d+)/', $headers, $matches)) {
            $this->response->setStatusCode($matches[1]);
        } else {
            if (count($parts) == 2) {
                $name = strtolower($parts[0]);
                $value = trim($parts[1]);
                // this must be a header: value line
                $this->response->headers->set($name, $value, false);
            } else {
                // this is hacky but until anyone comes up with a better way...
                $event = new ProxyEvent(array('request' => $this->request, 'response' => $this->response, 'proxy' => &$this));
                // this is the end of headers - last line is always empty - notify the dispatcher about this
                $this->dispatcher->dispatch('request.sent', $event);
            }
        }
        return strlen($headers);
    }