How to retrieve particular header fields from a raw HTTP response? - php

Question

This is what $result returns :
HTTP/1.1 200 OK
Server: SERVER
Content-Type: text/xml;charset=utf-8
Connection: close
Expires: Tue, 26 Mar 2013 00:28:45 GMT
Cache-Control: max-age=0, no-cache, no-store
Pragma: no-cache
Date: Tue, 26 Mar 2013 00:28:45 GMT
Content-Length: 290
Connection: keep-alive
Set-Cookie: KEY=isbgvigbiwsb124252525252; Domain=www.website.com; Expires=Tue, 26-Mar-13 02:28:44 GMT; Path=/; HttpOnly
Set-Cookie: session=12345566789:abc1231552662626262; Domain=www.website.com; Expires=Thu, 25-Apr-2013 00:28:43 GMT; Path=/
<login>
<success>1</success>
<player>
<id>1234567</id>
<AnotherId>123456</AnotherId>
<email>email#email.com</email>
<accountinformation>
<id>123456</id>
<name>namehere</name>
<number>1234360</number>
</accountinformation>
</player>
</login>
I want to retrieve the KEY cookie from the response. Currently my code is as follows
//a cURL function would be here
$result = curl_exec($ch);
list($body, $split) = explode("\r\n\r\n", $result, 2);
$arr = explode("\r\n", $body);
$start = explode(":", $arr[10]);
$end = explode(";", $start[1]);
$INFO_I_NEED = $end[0];
What would be a simpler way of performing this action ? since it needs to be done 3/4 times for different parsing areas.

Answer 1

It looks like preg_match_all might be what you are looking for. Using this answer as inspiration try:
preg_match_all('/^Set-Cookie:\s*([^;]*)/mi', $result, $m);
You could then write a function like this:
function getCookies($result) {
preg_match_all('/^Set-Cookie:\s*([^;]*)/mi', $result, $m);
return($m)
}
$result = curl_exec($ch);
$cookiesArray = getCookies($result);
The return value of the function will be an array of all the cookie values. So $cookiesArray will hold:
array (
0 => 'KEY=isbgvigbiwsb124252525252',
1 => 'session=12345566789:abc1231552662626262',
)

Answer 2

Put it inside a function so you can reuse when need be:
<?php
//a cURL function would be here
$result = curl_exec($ch);
$INFO_I_NEED = myExplode($result);
function myExplode($data){
list($body, $split) = explode("\r\n\r\n", $result, 2);
$arr = explode("\r\n", $body);
$start = explode(":", $arr[10]);
$end = explode(";", $start[1]);
return($end[0]);
}
?>