Official WordPress developer resources including a code reference, handbooks (for APIs, plugin and theme development, block editor), and more.

Nov 21, 2023 · A code editor and development environment are the foundational pieces of creating a WordPress theme. However, there are other tools and resources that you will likely …

Jul 30, 2014 · The Plugin Developer Handbook is a resource for all things WordPress plugins. Whether you’re new to WordPress plugin development, or you’re an experienced plugin …

Want to know what’s going on inside WordPress? Find out more information about its functions, classes, methods, and hooks.

May 2, 2019 · This handbook is focused on block development and is divided into five major sections. Getting Started: For those just starting out with block development, this is where you …

Nov 8, 2016 · Using the WordPress REST API you can create a plugin to provide an entirely new admin experience for WordPress, build a brand new interactive front-end experience, or bring …

Dec 10, 2025 · Learn to build a smooth word-switching effect in WordPress by combining four key APIs: HTML API for markup transformation, Interactivity API for animations, Format API for …

Sep 16, 2014 · There are two types of hooks within WordPress: actions and filters. Actions allow you to add or change WordPress functionality, while filters allow you to alter content as it is …

Apr 25, 2019 · WordPress is a big project with thousands of contributors. It’s important that best practices are followed so that the codebase is consistent and readable, and changes are easy …

Jul 30, 2014 · 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 …