This WordPress plugin development tutorial captures the steps I went through on a real project, including the mistakes I made and how I debugged them.

In this video and text Quick Guide, we present a basic use of WP_Query inside a WordPress shortcode, to show the post titles of the five most recently published posts. We’ve designed this Quick Guide to be a simple intro to using WP_Query in general, as well as to using WP_Query to display post titles and other post data inside a shortcode specifically.

In PHP, conditions are the core of conditional statements such as if-statements, and of certain other control structures like while() loops.

In this text and video Quick Guide, we’ll explain how to deactivate a WordPress plugin via FTP.

There are a lot of different PHP operators. Some are PHP comparison operators, and work like math you’re used to. We’ll save those for another time, because our sole focus this time will be PHP logical operators. That is the logical “and” and “or” of boolean logic.

Welcome to this discussion of PHP loops: what loops are, whey they’re important, and how to use PHP while() loops. This article continues our series explaining the basics of PHP for WordPress development.

Welcome to this introduction to PHP control flow! This article continues our series explaining the basics of PHP for WordPress development.

One of the most maligned features of WordPress is the use of “PHP global variables.” Whether you love them or hate them, global variables probably aren’t leaving WordPress soon. So today we’ll cover all there is to know about them. How to think about them. How you, in PHP, make variables global, access WordPress’s global variables, and a little about the theory and debate about global state in software applications.

Welcome to this article on how to use PHP in HTML! Here, we try to get specific about exactly how PHP and HTML interact, at the level of a specific .php file. In other words, how do you actually include PHP in HTML, and what rules can and can’t you follow in weaving PHP and HTML together?

This article introduces an important concept in WordPress themes: the WordPress get_template_part function. It’s one of the many important concepts of WordPress theme development. Mastering WordPress theme development is an important milestone in understanding WordPress development more generally. (We have a full free course on the topic, check it out.)