You're reading from WordPress Plugin Development Cookbook Explore the complete set of tools to craft powerful plugins that extend the world's most popular CMS

Product type Paperback

Published in Mar 2022

Publisher Packt

ISBN-13 9781801810777

Length 420 pages

Edition 3rd Edition

Languages

JavaScript

Tools

WordPress

Concepts

CMS

Author (1):

Yannick Lefebvre

View More author details

Table of Contents (15) Chapters

Preface

1. Chapter 1: Preparing a Local Development Environment

2. Chapter 2: Plugin Framework Basics FREE CHAPTER

3. Chapter 3: User Settings and Administration Pages

4. Chapter 4: The Power of Custom Post Types

5. Chapter 5: Customizing Post and Page Editors

6. Chapter 6: Extending the Block Editor

7. Chapter 7: Accepting User Content Submissions

8. Chapter 8: Customizing User Data

9. Chapter 9: Leveraging JavaScript, jQuery, and AJAX Scripts

10. Chapter 10: Adding New Widgets to the WordPress Library

11. Chapter 11: Fetching, Caching, and Regularly Updating External Site Data

12. Chapter 12: Enabling Plugin Internationalization

13. Chapter 13: Distributing Your Plugin on WordPress.org

14. Other Books You May Enjoy

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Creating a new widget in WordPress

The first step in creating a custom widget is to define its name and indicate the class that contains all of its implementation functions. We also need to specify a function to render the widget's contents. Once the new element has been registered with the system, it will immediately appear in the widget list, where users will be able to drag and drop it to their widget areas.

Getting ready

You should have already followed the Updating the page title to include custom post data using plugin filters recipe in Chapter 4, The Power of Custom Post Types, to have a starting point for this recipe. Alternatively, you can get the resulting code (ch4/ch4-book-reviews/ch4-book-reviews-v12.php) from the book's GitHub page and make sure that the Chapter 4 - Book Reviews plugin is activated.