REQUEST_URI Not working

[futureshock]

I am trying to have my 404 pages emailed to me for casualty control but am having problems retrieving the url that went bad.

When I use $_SERVER['REQUEST_URI'] I only get the actual 404 page not the bad link.

I have my .htacces redirect to

domain.com/404.php

Then at the top I use

echo $_SERVER['REQUEST_URI'];

and i get '/404.php'

Can this be a server configuration issue?
The server is installed with 4.3.11

Is there any other way to retrieve this bad link using php, or javascript?

Thanks
Scott

[konsu]

i would try to attach the bad url (url-encoded of course) as a query string parameter to the 404.php url and extract it from inside 404.php