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

Installing a web server on your computer

The first step to configure a local development environment is to install a local web server on your computer. This will transform your computer into a system capable of displaying web pages and performing all tasks related to rendering a WordPress website locally.

Having a local web server has many benefits, as follows:

  • It provides a quick response to the frequent page refreshes that are made as plugin code is written, tested, and refined, since all information is processed locally
  • It removes the need to constantly upload new plugin file versions to a remote web server to validate code changes
  • It allows development to take place when no internet connection is available (for example, when traveling on an airplane)
  • It offers a worry-free programming environment, where you cannot bring down a live website with a programming error or an infinite loop

There are many free packages available online that contain all of the web server components necessary to run...