mod_rewrite and include paths

This seems like a simple problem... I have a rewrite like this: RewriteRule ^x/([0-9]+) x.php?x=$1 [PT,L] This maps a url like http://www.example.com/x/123 to http://www.example.com/x.php?x=123 x.php contains a line to include some class like: require_once 'x.class.php'; My include path contains '.' (plus paths to pear, etc), and the class file is in the top level directory. This configuration will fail with a file not found error. Because of the rewrite, PHP ends up looking for x/x.class.php instead of just x.class.php. If I change the PT option to R (AKA ugly mode), it works fine as PHP gets to know about the real URL. So how can I get PHP to look in /? I can set include_path with a php_value in .htaccess, but I can only set it absolutely (losing existing values), not add to it (AFAIK?). I don't want to add an absolute path to my global include_path as there may be multiple independent deployments of the same scripts on the server, and I don't want them including each others files. Adding .. to the path would work but is a security risk. Any other ideas? Marcus -- Marcus Bointon Synchromedia Limited: Putting you in the picture marcus@synchromedia.co.uk | http://www.synchromedia.co.uk