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

Sending email notifications upon new submissions

Just like WordPress sends out email notifications to the administrator when new comments are posted, sending out emails when visitors post new book reviews allows website managers to review new content as it comes in and decide if they approve it to be published online.

This recipe shows how to prepare email data and send it using the wp_mail function.

Getting ready

You should be running the final version of the Book Reviews plugin created in Chapter 4, The Power of Custom Post Types, and should have already followed the Saving user-submitted data in custom post types recipe (including changing the post status to draft as indicated in the There's more... section). Alternatively, you can get the resulting files from the code bundle (Chapter 4/ch4-book-reviews/ch4-book-reviews-v11.php and Chapter 6/ch6-book-review-user-submission/ch6-book-review-user-submission-v2.php) and rename ch6-book-review-user-submission-v2.php to ch6-book-review-user-submission...