This is a 3 minute preview of a full video on http://buildamodule.com.
About this video: Having a firm grasp of how functions work in PHP can give you a huge boost when it comes to developing for Drupal. We cover some of the basics in this video, such as identifying and creating functions, but was also go over more advanced topics, such as using references, marking functions as private, understanding scope and modifying scope the right way with global and static variables. If you don't know what any of that that means, no problem, by the time you're done watching this video you will!
