Response-Header the right way

[gnanet]

The method of splitting the response data by a double \r\n starting at line 175 to get the response-headers and data in one request is by far not ideal.

Since then, there was a bit evolution on this topic, so i want to link you to the
proper solution for cUrl to retrieve response headers AND body in a single request and based on it, i changed the code sample below to your variable namings:

$response_headers = [];
// this function is called by curl for each header received
curl_setopt($ch, CURLOPT_HEADERFUNCTION,
  function($curl, $header) use (&$response_headers)
  {
    $len = strlen($header);
    $header = explode(':', $header, 2);
    if (count($header) < 2) // ignore invalid headers
      return $len;

    $headers[strtolower(trim($header[0]))][] = trim($header[1]);

    return $len;
  }
);

...

$response_content = curl_exec($ch);