Lynda com WordPress Creating Custom Plugins with PHP-ELOHiM

Open a world of new WordPress possibilities by writing your own plugins. Carrie Dils teaches you how to create custom functionality for WordPress using the Plugin API and a little bit of PHP. First, get a background in the basics of WordPress plugins—how to install them, manage them, find them, and write them—and understand when to use a plugin vs. a custom theme. Next, learn how to develop a plugin with the Plugin API, writing hooks (including actions and filters) to attach your new functionality to WordPress.