[cURL] Detect if there is a header(); on a page

[YBthebest]

Hey all!

 

Well the title is quit clear! I wanted to know how I can, through PHP, detect on a webpage if it uses the header() function to redirect to another page, in php! ( something like this : header('Location h31uh23i.php');  )

 

I think I need to use cURL for this!

 

Thank you very much if you can help me!

[micah1701]

yeah, no, it won't work.

 

cURL just reads the page as a browser would view it. 

[sastro]

<?php
$url = 'http://www.example.com';

print_r(get_headers($url));

print_r(get_headers($url, 1));
?>

[YBthebest]

Well you say it won't work but that is really weird...I've got a script that checks if there is some changement in a page, by checking if there is a <form on the page or if an image is still there ( the two methods work ) but they don't work when the page changes....and what they do, they add a header redirection on the first page and then it redirects to the second page, the important page. So my script doesn't detect any change it the page...

 

And when I enter the URL of the second page, it detects the change...

 

I'm lost!

 

Did you understand anything xD?

[Andy-H]

//detect header redirects
$uri      = 'http://google.com';
$headers  = get_headers($uri, 1);

$redirect = $headers['Location'];
unset($headers);
if ( count($redirect) > 1 )
{
   // redirects occured
}
//redirects stored like so: $redirect[0] = 'http://google.com'; $redirect[1] = 'http://google.co.uk'; // etc..

 

If you wish to use curl on each redirect that took place:

 

<?php

$uri      = 'http://google.com';
$headers  = get_headers($uri, 1);

$redirect = $headers['Location'];
unset($headers);
$i = 0;
   foreach($redirect as $redirect)
   {
       $ch[$i] = curl_init();
       curl_setopt($ch[$i], CURLOPT_URL, $redirect);
       //etc...
       ++$i;
    }

    $mh = curl_multi_init();
    foreach($ch as $cm)
    {
        curl_multi_add_handle($mh, $cm);
    }

    curl_multi_exec($mh);
    
    foreach($ch as $cm)
    {
        curl_multi_remove_handle($mh, $cm);
    }
    
    curl_multi_close($mh);
?>

 

This will be very resource intensive...