- substr: documentation ( source)
- strpos: documentation ( source)
<?php
$link = '/te3/out.php?s=100,75,65&u=http://www.allsologirls.com/solo-galleries/busty-alli/lingerie/cleostgp.html';
if (strpos($link, '=http') > -1 ) $link = substr($link, strpos($link, '=http') + 1);
echo $link;