WordPress is quick, lightweight, and simple to utilize. To guarantee it remains as such, the Core Team contemplates adding usefulness profoundly WordPress code. In any case, clients frequently discover the need to join extra usefulness into WordPress to address their issues. This segment of the Codex offers rules and references for anybody wishing to alter, broaden, or add to WordPress.
Module Developer Handbook – The best beginning spot for finding out about how to create modules
WordPress Coding Standards – General data about coding gauges for WordPress advancement
Investigating in WordPress – Reference and guide for utilizing the inherent troubleshooting framework in WordPress.
Information Validation – An unquestionable requirement read for WordPress module writers. Portrays the capacities utilized by WordPress to approve and disinfect information. Module creators ought to be comfortable with these capacities and thoughts.
Module Submission and Promotion – Once you have composed your module, here are a few insights on circulating it broadly
Moving Plugins and Themes – Contains data on the best way to overhaul your Plugin so it will work from variant to adaptation of WordPress
Capacity Reference – Complete PHP work reference for WordPress
Worldwide Variables – A rundown of every single worldwide variable made by WordPress
Post Types – Creating new kinds of posts other than the posts that show on the primary circle.
Scientific classifications – Creating new sorts of scientific classifications other than the implicit ones.
Held Terms – A rundown of saved terms in WordPress.
Adding to WordPress
Adding to WordPress – Main beginning stage in the event that you might want to add to center WordPress improvement, documentation, support, interpretations, or monetary wellbeing
Robotized Testing – Testing WordPress utilizing the mechanized test suite and how to utilize the devices and compose test cases.
Discharge Philosophy – The logic of WordPress discharges.
Discussions, Lists, and Blogs
Mailing Lists – WordPress mailing records are for software engineers, documentation, and improvement
IRC – WordPress IRC channels
http://wordpress.org/bolster – WordPress Support Forums
http://wordpress.org/improvement – WordPress Development Blog
http://planet.wordpress.org – Aggregate of numerous web journals talking about WordPress (official)
http://planetwordpress.planetozh.com/ – Another total of numerous sites talking about WordPress for the most part modules and subjects (informal)
Other Information of Interest
Propelled Topics – Annotated rundown of numerous articles on cutting edge WordPress themes
Question Overview – Description of the WordPress inquiry process used to discover posts and show them
Announcing Bugs – Information on revealing and settling WordPress bugs
Utilizing Subversion – Introduction to SVN, the source code archive utilized by WordPress
Improvement Team – The individuals from the advancement group.