WordPress Event-Driven (Hook) Engine

WordPress is built on an event-driven engine. Through the Plugin API, we developers are given the power to extend, reorder, remove, and change the behavior of WordPress, plugins, and themes. Success in WordPress begins right here with a solid fundamental mastery of the event-driven system.

As a professional developer, it is essential that you master the event-driven (hook) system in WordPress. It’s at the center of everything we do, allowing us to interact with or hook into each other’s products using functions such as add_action and add_filter. Deeply learning about the inter-workings of this engine will accelerate not only your WordPress knowledge but also you programming, PHP, and programmatic and logical thinking.

Hands-on Labs

Let’s build some stuff to learn more about the WordPress event-driven engine.

8 Episodes
01:17:56 Runtime

WordPress Plugin API - Introduction & Registering Event Hooks

The Event System in WordPress Plugin API is the cornerstone for developers, as it allows you to extend, enhance, and change the behavior of WordPress. In this lab, you will be introduced to the event-driven mechanism. Then you'll get to work registering callbacks for events (actions and filters) to help you know this important API. Let's dig into add_filter and add_action.

Learn more

Coming Soon

WordPress Plugin API - Loading Plugins

WordPress auto discovers the main plugin file for each plugin and then loads it. How does it do this? How does it know which file is the main one in your plugin directory? In this Pro Lab, you'll go into WordPress Core, walk through the code, and then reverse engineer it. This lab will help you to know how your plugin files are being read, discovered, and loaded.

Learn more