Course: Working with the Command Line and WP-CLI
When we think about “using a computer,” we usually think in terms of graphical user interfaces, or GUIs: interfaces (like Microsoft Word, the Mac OS, or the WordPress admin interface) that are specially and attractively designed, that have programs and windows and tabs that visibly open and close, and that let you click things and drag things and drop things and hover things.
Course: WordPress Theme Development (Core Concepts)
This is an introduction to the core concepts of WordPress theme development and comes from the upcoming Second Edition of our “learn WordPress development” course Up and Running.
Course: A Complete Introduction to the WordPress Hooks System
This course covers one of WordPress’s most crucial and widely used systems: Hooks, including both actions and filters. We introduce Hooks as an event-driven system, present the key concepts and terminology you need to understand this system, and dig deep into how to use hooks in your own code—including hooking in your own functions, removing previously hooked functions, and creating your own action and filter hooks for others to use. Let’s dive in!
Course: Clarifying Technical Terms with Multiple Meanings in WordPress
This course works to straighten out the many meanings of several key technical terms.
Using Custom Taxonomies and Custom Fields in WordPress Development
This course covers the key points of two of WordPress’s most powerful APIs for defining custom post data: custom fields (also called post meta), and custom taxonomies. The course introduces each tool, and then—since some problems can be addressed by either tool—covers practical guidelines for when to use custom fields and when to use custom taxonomies.
Working with WP_Query
The WP_Query API uses a programming style called object-oriented programming, or OOP. Every WP_Query is actually a WP_Query Object, meaning an individual instance of the broader WP_Widget Class. If this setup doesn’t make sense to you, you’ll want to quickly learn the basics of object-oriented programming (OOP):
Creating WordPress Widgets: The Complete Guide
Over the years, we’ve written a lot about WordPress. At one time or another, we’ve covered most of the knowledge that we use as professional WordPress developers. Today we turn our attention to how to create a widget with WordPress.