How to find the redirect?

I want to know whow to find the reditected url.

like when someone uses a php header to redirect how can I use php to find the destination url?

 

If it redirects - destination url means the site where you are being redirected .. Am I wrong ? In that case - why you want to get it if you can see it in address bar ?
** You can't get it via php ..

 

This should work, but only if the redirection is from HTTP header.

<?php

$url = 'http://test.com/test.php';// the url to check

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_REFERER, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
curl_setopt($ch, CURLOPT_HEADER, true);// must be true
$result = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);

if ($info['http_code'] == 301 || $info['http_code'] == 302) {
	list($headers, $body) = explode("\r\n\r\n", $result);
	preg_match('/location:([ ]+)?(.*)?/i', $headers, $match);
	$redirectedTo = trim($match[2]);// yes, put a trim() here
	echo 'You are redirected to <strong>'.$redirectedTo.'</strong>';
} else {
	echo 'Not redirected';
}
?>

PHP:

 

$_SERVER['HTTP_REFERER']?

- ads2help

 

You're going to have to show an example or explain a little better.

Are you trying to get data on incoming connections to your site or outgoing proxy type connections?