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From: Arno Welzel <usenet@arnowelzel.de>
Newsgroups: comp.lang.php
Subject: Re: cURL and response code 302
Date: Thu, 11 Jul 2013 21:04:57 +0200
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bill, 2013-07-11 16:51:

> On 7/10/2013 6:12 PM, Arno Welzel wrote:
> 
>> if($resultcode == 302)
>> 	$redirect = curl_getinfo($ch, CURLINFO_REDIRECT_URL);
>> else
>> 	$redirect = '';
>>
>> echo 'Effective URL: '.$url.'<br/>';
>> echo 'HTTP result code: '.$resultcode.'<br/>';
>> echo 'Redirection: '.$redirect.'<br/>';
>>
>> curl_close($ch);
>> ?>
>>
>> See in action at <http://arnowelzel.de/samples/curl-sample.php>
>>
>> CURLINFO_REDIRECT_URL is not in the documentation but it was added in
>> PHP 5.3.7. Also see <http://php.net/ChangeLog-5.php>.
>>
>> If this does not work for you (e.g. because you have an older PHP
>> version), you have to extract the location header "manually".
> 
> that helps.  The php I have available is 5.3, so hints at 
> extracting it "manually?"
> 
> With thanks and appreciation.

In the example above you will get the headers in $result.

With curl_getinfo(CURLINFO_HEADER_SIZE) you can also check how long the
header part in $result is (beginning with the first character), so

$headers = substr($result, curl_getinfo(CURLINFO_HEADER_SIZE));

should give you all headers.

HTTP headers are in the form

Header1: Value
Header2: Value
[...]

And the redirection URL is

Location: URL

So try to find the "Location: " part and use the remaining text up to
the line break.

BTW: Using tools like the Firebug AddOn for Firefox help a lot to
understand HTTP headers.


-- 
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de