extracting the file name from the referrer

["John" <jd.pillion@xxxxxxxxx>]

I need to extract just the filename from the referring url, stripping it of
the path and any post vars on the end. there's got to be an easier way than
this eh?

 

$referrer = trim(strrchr(substr($_SERVER['HTTP_REFERER'],0,
strpos($_SERVER['HTTP_REFERER'],"?")), "/"), "/")

 

Thanks!

 

-JP