404 error page : how to retrieve the asked page ?

[dvdw]

Hi,

I use a derived notfound.php page to perform some operations.

My idea is to retrieve the bad url call (example : indexo.php in place of index.php) and to redirect the user to the good page (index.php). I put some bad url's in an array and the good destination too.

I've try to retrieve the bad url call with an $_SERVER['URL'] or with a $_SERVER['HTTP_REFERER'] but i always receive the url of the notfound.php page and not the indexo.php.

Any idea to retrieve the bad url ?
Thank you in advance
Dominique