Kevin Schroeder has posted a podcast from last year's Zend/PHP Conference (2010) - Fabien Potencier's session covering dependency injection.

This session introduced one of the less-known design patterns in the PHP world, but also one that can greatly improve the decoupling and the testability of your code: Dependency Injection. I will demonstrate how to use Dependency Injection in your projects, and I will take advantage of the PHP 5.3 new features to create a fully-featured DI container live.

Included in the post are links to the slides for the talk as well as the link to download the mp3 directly.