If you're running CentOS 4 and want to get PHP up and running on your installation, check out this quick and dirty guide posted over on the HowToBoard.com.

The process really only involves six or seven steps to get things up and running, but you'll need to know how to get in and edit things before you can build the packages up right. Oh, and of course, a little credit where credit's due:

Enjoy! Do not forget to install new php-pear as well. Special thanks to Peter Zaitsev.