Book Image

WordPress Plugin Development Cookbook - Second Edition

By : Yannick Lefebvre
Book Image

WordPress Plugin Development Cookbook - Second Edition

By: Yannick Lefebvre

Overview of this book

WordPress is a popular, powerful, and open Content Management System. Learning how to extend its capabilities allows you to unleash its full potential, whether you're an administrator trying to find the right extension, a developer with a great idea to enhance the platform for the community, or a website developer working to fulfill a client's needs. This book shows readers how to navigate WordPress' vast set of API functions to create high-quality plugins with easy-to-configure administration interfaces. With new recipes and materials updated for the latest versions of WordPress 4.x, this second edition teaches you how to create plugins of varying complexity ranging from a few lines of code to complex extensions that provide intricate new capabilities. You'll start by using the basic mechanisms provided in WordPress to create plugins and execute custom user code. You will then see how to design administration panels, enhance the post editor with custom fields, store custom data, and modify site behavior based on the value of custom fields. You'll safely incorporate dynamic elements on web pages using scripting languages, and build new widgets that users will be able to add to WordPress sidebars and widget areas. By the end of this book, you will be able to create WordPress plugins to perform any task you can imagine.
Table of Contents (20 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback


Once you have a version of your new plugin that is ready to be distributed to the masses, you need to decide whether you will join the official WordPress repository or self-publish it.

In most cases, the preferred option is to add your new extension to the official WordPress plugin repository, where you have many benefits, including free hosting, built-in notification of new updates, and a powerful search engine that users can access on or from the Plugins section of their website's administration pages. Other benefits of hosting on the official repository include download statistics and the creation of a free forum to facilitate user support. To qualify for this hosting, your work must be free and open source, as well as comply with the GNU General Public License, Version 2 (also known as GPL v2), a common open source software license that WordPress itself uses.

This includes any code you wrote, along with any third-party PHP or Javascript libraries that...