The DeveloperTutorials website has a new tutorial posted that walks the reader through a step-by-step process to create a PHP Facebook application of their very own.

Everyone is talking about Facebook and their new Application Platform and I have to admit I think it's pretty cool too. So I decided to create an application that uses the Facebook Platform. I'm writing the application in PHP and I thought it might be useful for others to know how to write their own Facebook applications with PHP.

They show you where you'll need to go to set up an ID with Facebook to develop with, the developer application you'll need to add, where to grab the Facebook developer API and, finally, creating a simple application.

Their example is just of the "Hello World" sort, but it gives you a good foundation to start from. They also include pointers to the Facebook Markup Language and a reference for the Facebook REST-based API interface.