How to convert response header in array in php - php

Question

I am using Gcm for sending notifications and I have used curl for the same. Here is the script
$registrationId= array('adkbvkasdjb');
$headers=array(
'Authorization: key=' . GOOGLE_API_KEY,
'Content-Type: application/json'
);
$sendData=array(
'msg'=>'any message');
$url= GCM_URL;
$details=array(
'registration_ids'=>$registrationId,
'time_to_live'=> 48*60*60,
'data'=>$sendData,
);
$ch= curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($details));
$result= curl_exec($ch);
$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$header = substr($result, 0, $header_size);
$body = substr($result, $header_size);
// closing the curl connection
curl_close($ch);
Now i am getting the header of the response as
HTTP/1.1 200 OK
Content-Type: application/json; charset=UTF-8
Date: Thu, 16 Jan 2014 11:05:17 GMT
Expires: Thu, 16 Jan 2014 11:05:17 GMT
Cache-Control: private, max-age=0
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Server: GSE
Alternate-Protocol: 443:quic
Transfer-Encoding: chunked
Since I am not very good with regex and i searched a lot about a method that could parse the header of the response but all in vain.
Question:-
So i just wanna know is there anything or any method that could parse the header response as an array ?
Note:- I found a little about http_parse_header() but it need pcre to be installed so i am not sure whether it is installed on my REAL SERVER :)

Answer 1

You don't need any Regex to do it. If you read the first comment of parse_http_headers documentation on php.net, there is a little implementation if pecl_http lib is not found.
Follow the link:
http://www.php.net/manual/en/function.http-parse-headers.php#112986