pathinfo or other

Hello, What is the best way to get the /somedir/ values in the request URI? I tried $t_pathinfo = $_SERVER['PATH_INFO']; but was given an error of undefined index. After looking at the docs, it appears the error derives from something I may have to do in the .ini file. However, is there a standard/better way of grabbing the info after the host and before the query string.. perhaps 'SCRIPT_NAME'? Thanks! Donovan -- D Brooke