PHP software

I picked up a book on PHP that seems pretty good as a learning book and reference material.

Problem is, they don't state the software you need to test your code!!

I've got Tomcat on my system as a webserver, but what else do I need to be able to run and test my PHP code?

Note: The book goes into depth into XML technologies: SAX, DOM, XPath, and XSLT. Software to run these scripts would be nice too.

(a web page tutorial for intro to PHP and setting up your system to use it would be great, first and foremost)

>>1
Go http://php.net ,  download PHP 4.3.11 or 5.0.whatever (depends on what are you learning), and then you can get Apache and use mod_php as usual, or run the CLI client (php.exe; for PHP 4 use the one in the CLI subdir).

>>2-3 are DQN
Just because there's sucky people writing sucky software it doesn't mean it sucks.