How do I use php?
You use it just like any other CGI script. The path to the php binary is
/usr/local/bin/php. It does not run as a module, it runs as a CGI. It
runs via suexec, so don't set group/other write on the script, or it won't
run. It also has to be set executable, and you'll need to print out the "Content-type:" header (as well as any others you want to use) at the top, just like you would for a CGI.