Martynas Jusevicius continues his look at the enhanced features that PHP5 has to offer with this post focusing on the ability to autoload classes that haven't been defined yet.

Continuing the series about useful features in PHP 5, another overlooked one is class autoloading. [...] Basically, you get a class name as a parameter in your __autoload() function, and using it you have to figure out the path to the actual class file and include it.

He includes both a description and an example of some code in action and even points out something that can help to make for cleaner, more organized code - the ability to register more than one autloader with the spl_autoload_register function.