This tag is for programming-specific questions about the WordPress content management system. Off-topic questions include those about theme development, WordPress administration, management best practices, server configuration, etc. These are best asked on the dedicated WordPress Development Stack Exchange site (https://wordpress.stackexchange.com).
WordPress is a PHP-based, open source content management system (cms) for creating websites and blogs. Through its dynamic presentation of content, webmasters have the flexibility to create beautiful and useful websites easily. Through its system of filters and hooks, WordPress allows developers to extend functionality through pieces of code called functions, which can be grouped into separate executables called "plugins". It is also possible to customize a WordPress installation via the creation of custom themes.
WordPress as a content management platform should be distinguished from wordpress.com, which is a hosted solution by the creators of WordPress. For a discussion of the differences, visit WordPress.com and WordPress.org.
b2 was the precursor of WordPress and developed in 2001. It used PHP and MySQL but was not so successful (only 3000 blogs until 2003).
WordPress appeared the first time in 2003 as a fork of b2, version 1.0 was in development until January 2004. WordPress has since been improved many times through updates. WordPress 5.0 shipped a new block-based editor called "Gutenberg". The latest major release is WordPress 5.3 released on November 12, 2019.
- WordPress Development Stack Exchange
Stack Exchange's dedicated WordPress site. Questions about programming themes, drop-ins and plugins and about the administration of WordPress are on-topic there.
The main site where you can download the code, plugins and themes. There is also a forum.
- WordPress Codex
Documentation wiki with lots of good tutorials, references, and links.
- Wordpress Code Reference
Advanced search for WordPress' functions, classes, methods, and hooks.
- Make WordPress
Official resources to help people develop for WordPress.
- WordPress Mailing Lists
18 lists to discuss nearly every aspect of WordPress.
- WordPress Trac
Bug tracker for WordPress. Useful to keep on track of the latest changes – and to report the bugs you found.
- WordPress Chat
Here you may sometimes get help very fast.
- Installing WordPress
Installing WordPress & getting started.
- Plugin Handbook
WordPress Plugins allow easy modification, customization, and enhancement to a WordPress blog.
- Plugin API
The article is specifically about the "Hooks" API, also known as "Filters" and "Actions", that WordPress uses to set your plugin in motion.
- Theme Development
WordPress themes are easy to create and make it useable. WordPress has it's own tutorial site, where everyone can educate themselves, beginner or expert.
- WPZA's WordPress Guides
Useful WordPress guides which have been written for developers, in order to help make WordPress development easier. WPZA also provide DIY AMP guides, in order to AMPify websites without the use of plugins.
- WordPress Multisite
You have the ability to create a network of sites by using the multisite feature. This article contains instructions for creating a multisite network.
- Wordpress Download
Download WordPress latest version.
- Getting Started
Getting Started with WordPress
- WordPress Wikipedia Article
- Wordpress Area51 Stack Exchange Proposal Link
Specific features or topics