Welcome to the Plugin Developer Handbook. Whether you’re writing your first plugin or your fiftieth, we hope this resource helps you write the best plugin possible.
The Plugin Developer Handbook covers a variety of topics — everything from what should be in the plugin header, to security best practices, to tools you can use to build your plugin. It’s also a work in progress — if you find something missing or incomplete, please edit and make it better.
There are three major components to WordPress:
This handbook is about plugins and how they interact with WordPress. It will help you understand how they work and how to create your own.