Stefan Mischook has made another update to his OOP beginners tutorial:

I've update my beginners tutorial on object oriented PHP adding steps 18-22. Again, this is a code intensive article where I expect you to follow along with your PHP editors.

You can check out the full tutorial (well, up to step 22 of course) on the KillerPHP.com website to get started with working with objects, classes and related functionality.