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Custom Post Type Templates You can create custom templates for your custom post types. In the sam...

WordPress comes with five default post types: post, page, attachment, revision, and menu. Wh...

WordPress stores the Post Types in the posts table allowing developers to register Custom Post T...

Your plugin may need to do some clean-up when it is uninstalled from a site. A plugin is consider...

Getting Started At its simplest, a WordPress plugin is a PHP file with a WordPress plugin header ...

Most WordPress plugins are released under the GPL, which is the same license that WordPress itsel...

As described in Getting Started, the main PHP file should include a header comment that tells Wor...

When coding WordPress plugins you often need to reference various files and folders throughout th...

Here are some best practices to help organize your code so it works well alongside WordPress core...

Activation and deactivation hooks provide ways to perform actions when plugins are activated or d...

Here is a non exhaustive list of functions and template tags used to get and render Post Metadata...

Adding Metadata Adding metadata can be done quite easily with add_post_meta(). The function acce...

Metadata is information about information. In the case of WordPress, it's information associated ...

What is a Meta Box? When a user edits a post, the edit screen is composed of several default boxe...

Here are all the example code snippets from the preceding discussion, assembled into two complete...

Using jQuery Your jQuery script runs on the user's browser after your WordPress webpage is receiv...

JavaScript is an important component in many WordPress plugins. WordPress comes with a variety o...

The Heartbeat API is a simple server polling API built in to WordPress, allowing near-real-time f...

There are two parts to the server side PHP script that are needed to implement AJAX communication...

What is AJAX? AJAX is the acronym for Asynchronous JavaScript And XML. XML is a data exchange for...