[PHP] How to extract php source code from joomla

[elk dolk]

Hi all,
I want to build a website using Joomla 2.5 . It should have 5 pages:

index.php
pageOne.php
pageTwo.php
.......

How can I get the php source code for those pages?

I installed joomla 2.5 on my windows box and use XAMPP's appache web server 
thanks