PHP Installation

What do you Need?

If you supports PHP you don't need to do any thing.
just create some .php file in your web directory, and the server will parse them for you. because it is free, most web hosts offer PHP support.

How ever, if your server does not support PHP, must install PHP.

Here is a link to a good tutorial from PHP.net on how to install PHP5.
http://www.php.net/manual /en/install.php

Download MYSQL Database
Download MYSQL for free Here: http://www.mysql.com/downloads/index.html

Download Appache server
Download Appache server for free here: http://httpd.apche.org/download.cgi