Book Image

WordPress Plugin Development Cookbook - Third Edition

By : Yannick Lefebvre
Book Image

WordPress Plugin Development Cookbook - Third Edition

By: Yannick Lefebvre

Overview of this book

WordPress is one of the most widely used, powerful, and open content management systems (CMSs). Whether you're a site owner trying to find the right extension, a developer who wants to contribute to the community, or a website developer working to fulfill a client's needs, learning how to extend WordPress' capabilities will help you to unleash its full potential. This book will help you become familiar with API functions to create secure plugins with easy-to-use administration interfaces. This third edition contains new recipes and up-to-date code samples, including new chapters on creating custom blocks for the block editor and integrating data from external sources. From one chapter to the next, you’ll learn 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, followed by recipes covering how to design administration panels, enhance the post editor with custom fields, store custom data, and even create custom blocks. You'll safely incorporate dynamic elements into web pages using scripting languages, learn how to integrate data from external sources, 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 (15 chapters)

Translating text strings using Poedit

After inserting all the necessary code to look up translations for text elements in our plugin code, the next step is to create the actual translation files. While there are multiple tools available to perform this task, we will focus our efforts on the most popular one, the free multi-platform Poedit.

Getting ready

You should have already followed the Modifying shortcode output for translation recipe to have a starting point for this recipe. Alternatively, you can get the resulting code (ch12/ch12-hello-world/ch12-hello-world-v3.php) for that recipe from the book's GitHub page and rename the file to ch12-hello-world.php.

How to do it...

Follow these steps to extract all the strings to be translated from the plugin's code using Poedit, translate them, and save the resulting language files under the plugin directory:

  1. Navigate to the ch12-hello-world folder of the WordPress plugin directory of your development installation...