Split cURL header info into array

Question

Consider the following PHP cURL command:

$url = 'http://bit.ly/faV1vd';

$_h = curl_init();
curl_setopt($_h, CURLOPT_HEADER, 1);
curl_setopt($_h, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($_h, CURLOPT_HTTPGET, 1);
curl_setopt($_h, CURLOPT_URL, $url);
curl_setopt($_h, CURLOPT_DNS_USE_GLOBAL_CACHE, false );
curl_setopt($_h, CURLOPT_DNS_CACHE_TIMEOUT, 2 );

$return = curl_exec($_h);

This returns:

HTTP/1.1 301 Moved
Server: nginx
Date: Sun, 29 Apr 2012 12:48:07 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Set-Cookie: _bit=4f9d3887-00215-020af-2f1cf10a;domain=.bit.ly;expires=Fri Oct 26 12:48:07 2012;path=/; HttpOnly
Cache-control: private; max-age=90
Location: http://www.macroaxis.com/invest/market/VZ--Sat-Feb-26-06-16-35-CST-2011?utm_source=twitterfeed&utm_medium=twitter
MIME-Version: 1.0
Content-Length: 209

I want to split the header info into an array, as follows

[Status] => HTTP/1.1 301 Moved,
[Server] => nginx,
[Date] => Sun, 29 Apr 2012 12:48:07 GMT,
...
[Content-Length] => 209

So: - the first line (HTTP/1.1 301 Moved) should be the value of [Status] - all other header info should be split on :

I'm not succeeding in splitting the header info:

explode("\r\n\r\n", $return);
explode("\r\n", $return);

This doesn't split the header into an array (to further split on :, etc. as expected. What am I doing wrong?

Community · Accepted Answer · 2017-05-23 12:08:50Z

7

The answer by Altaf Hussain is good but does not support a case where the header response contains a ':'. i.e. X-URL: http://something.com. In this case the $myarray will only contain ('X-URL' => 'http')

This can be fixed by adding the limit parameter and setting it to 2. In addition, there should be a space after the colon. So the full solution with the bug fix is:

$myarray=array();
$data=explode("\n",$return);

$myarray['status']=$data[0];

array_shift($data);

foreach($data as $part){
$middle=explode(": ",$part,2);
$myarray[trim($middle[0])] = trim($middle[1]);
}

print_r($myarray);

edited May 23, 2017 at 12:08

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answered Oct 17, 2013 at 9:28

Guedalia

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2 Comments

rvighne Over a year ago

Good! But you could replace ... = $data[0]; array_shift($data); with ... = array_shift($data);. This because array_shift returns the removed value.

lm713 Over a year ago

Perhaps a neater solution: $data = explode("\n", 'Status: ' . $return); then remove the next two lines.

Altaf Hussain · Accepted Answer · 2018-11-13 09:10:31Z

6

Use this to split your header into an array

$myarray = array();
$data = explode("\n",$return);

$myarray['status'] = $data[0];

array_shift($data);

foreach($data as $part){
     $middle = explode(":",$part);
     $myarray[trim($middle[0])] = trim($middle[1]);
}

print_r($myarray);

As well as use curl_setopt($_h, CURLOPT_NOBODY, 1); if you need to return only header.

More info can be found here

http://altafphp.blogspot.com/2012/04/get-http-headers-of-any-site-using-curl.html

edited Nov 13, 2018 at 9:10

answered Apr 29, 2012 at 13:26

Altaf Hussain

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Comments

Fraser · Accepted Answer · 2016-05-03 17:37:38Z

2

cURL already supports a callback function for parsing the headers.

CURLOPT_HEADERFUNCTION : A callback accepting two parameters. The first is the cURL resource, the second is a string with the header data to be written. The header data must be written by this callback. Return the number of bytes written.

function handle_headers($curl, $header_line) 
{
    list($name, $value) = explode(": ", $header_line, 2);
    //do something with name/value...
    return strlen($header_line);
}

curl_setopt($curl, CURLOPT_HEADERFUNCTION, "handle_headers");

edited May 3, 2016 at 17:37

answered Apr 20, 2016 at 12:01

Fraser

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Comments

fedmich · Accepted Answer · 2012-12-28 16:06:07Z

0

You could also just split it into maximum of 2

explode("\r\n\r\n",$result,2);

and remember to setup followlocation and max redirect if you want the actual url to fetch

curl_setopt($curl, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($curl, CURLOPT_MAXREDIRS, 5);

answered Dec 28, 2012 at 16:06

fedmich

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