Our goal today is introduce object-oriented programming in PHP, as the basis to discuss OOP in WordPress.

This video and text Quick Guide explains how to prevent browser caching of CSS files, with a special focus on doing this for WordPress sites.

One of the things that often confuses people new to object-oriented PHP is what are called “PHP static methods” and “static properties”. They’re often confusing, because you simply aren’t used to the syntax, which is a PHP double-colon (::) where you might expect an arrow (->). But, I’m getting ahead of myself.

WordPress development is a massively useful skill, but it’s also tricky to learn—especially if you learn things in a piecemeal way that allows basic confusions to persist while you try to tackle advanced topics.

Want to know how to include a JavaScript file onto your WordPress site? Here, we explain and demo an awesome WordPress function called wp_enqueue_script() that is the correct way to include JavaScript files in WordPress.

Stylesheets are at the heart of making HTML pages look good, in WordPress and the web. And the way that we make CSS stylesheets load into the page in WordPress is using the wp_enqueue_style function. It’s not too complicated, but there a few common places that people new to using it will get tripped up. This Quick Guide will cover those, and then get you running in a step-by-step guide.

The WordPress excerpts system works properly, but it uses lots of functions and it’s hard to know which one does what.

Welcome! WordPress themes are one of the first and most important topics that one must understand to be good at WordPress development. Themes underlie the entire visual half of WordPress site, but often grow to do even more. We’re hoping your find these free content very helpful, as we think it covers some of the most important concepts in doing WordPress theme development for yourself.

One of the first topics I ever wrote about on WPShout, I kind of thought that the topic of “theme creep” had died long ago. But a few times in the last few months–once with someone I’m mentoring in WordPress development, once with someone who was asking how to buy themes–I felt a need to mention this idea. So I’m revising and updating the original essays.

This article introduces one of the most important topics in WordPress development: the WordPress template hierarchy. It’s one of the most important concepts in all of WordPress theme development. (We have a full free course on the topic, check it out.)