I pulled my hair out for 10 hours trying to figure out why my CGI Wrappers would spit out the shell script and not run the code.
"PHP4 needs a specific configuration so that it won't try to execute the starter script.
Edit /etc/php4/cgi/php.ini, search for cgi.fix_pathinfo and set it to 1.
If you don't do this, PHP5 will work fine (it has cgi.fix_pathinfo compiled right in), but PHP4 will simply output the starter script. (You can even put <?php phpinfo (); ?> inside the starter script and will see the PHP information.)"
CLI and CGI
In PHP 5 there were some changes in CLI and CGI filenames. In PHP 5, the CGI version was renamed to php-cgi.exe (previously php.exe) and the CLI version now sits in the main directory (previously cli/php.exe).
In PHP 5 it was also introduced a new mode: php-win.exe. This is equal to the CLI version, except that php-win doesn't output anything and thus provides no console (no "dos box" appears on the screen). This behavior is similar to php-gtk.
See also the command line reference.