Zend Framework 1.8.0 was released yesterday and if you are using it within a Symfony project, you need to know something: Starting on 1.8.0 Zend_Load::autoload() is deprecated and will be removed on 2.0.0.

With the updated loader, if you'd like to use it inside Symfony, you need to change the function you're using to autoload via a call to spl_autoload_register. Point this at the Zend Framework code and you should be good to go.

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.