Thursday, May 9, 2013

Comprehensive list of resources for plugin developers


Plugins are tools to extend the functionality of WordPress. The core of WordPress is designed to be lean, to maximize flexibility and minimize code bloat. Plugins offer custom functions and features so that each user can tailor their site to their specific needs.

This article is a comprehensive list of resources related to plugins and plugin development.
General Plugin References

    Managing Plugins - How to find, install, manage, and troubleshoot plugins
    Plugins - WordPress plugin list, and links to other plugin repositories
    Plugins/Plugin Compatibility - List of which plugins are compatible with which versions of WordPress

Plugin Development Basics

    Writing a Plugin - Best starting place for learning about how to develop Plugins
    Plugin API - Description of how to use Hooks (Actions and Filters) in your Plugins, and WordPress functions that plugins can override.
    Adding Administration Menus - How to add management menus to your plugin
    Plugin Submission and Promotion - Once you have written your plugin, here are some hints on distributing it widely
    Migrating Plugins and Themes - Contains information on how to upgrade your Plugin so it will work from version to version of WordPress
    Determining Plugin and Content Directories - Example code and explanation of how to determine where your plugin files/folders will be in relation to the server and wordpress install.


External Resources:

    WordPress Plugins Database's FAQ on writing plugins
    Updating WordPress Plugins for 1.5.1
    Your First Wordpress Plugin (video demonstration)
    Anatomy of a new Plugin (traduzione italiana)
    Writing a WordPress Plugin Part I and Part II
    Simplified AJAX For WordPress Plugin Developers using Jquery

Plugin Development - Reference

    Plugin API/Filter Reference - Reference list of filter hooks available in WordPress
    Plugin API/Action Reference - Reference list of action hooks available in WordPress
    Function Reference - Complete PHP function reference for WordPress (version 2.1, with links to previous versions)
    Option Reference - Large list of options that WordPress installs by default (version 2.3.1, no links to previous versions)
    Database Description - Description of the WordPress Database (version 2.1; has links to older version articles)
    Query Overview - Description of the WordPress query process used to find posts and display them
    WordPress Coding Standards - General information about coding standards for WordPress development
    WordPress Deprecated Functions Hook - WordPress 2.4 adds two hooks for when deprecated functions are used, here is how to use them.

External Resources:

    Pluggable Functions
    Skippy's list of actions and filters
    WordPress Hooks, a work in progress directory of all of WordPress’ hooks.
    WordPress Hooks Database, a database of all WordPress' hooks, showing which version they come from, and linking to the source code spots that use them
    Angsuman's list, a comprehensive listing of WordPress action hooks with documentation and source code location information. It contains all documented and undocumented action hooks in WordPress 2.0.

Plugin Development - Special Topics

    Creating Admin Themes - How to create a Plugin that changes the look of the Admin section
    Creating Tables with Plugins - How to store your plugin's data in a new table in the WordPress database
    Custom Queries - How to implement custom queries that let a plugin control which posts are displayed and in what order
    AJAX in Plugins - How to add AJAX functionality to your plugin, in the administration screens or viewer-facing pages
    Hacking WordPress - Other types of "hacks" for WordPress
    Creating Options Pages - How to easily create custom options pages and have WordPress do all the hard work for you!
    Modifying Options Pages - How to modify already existing options pages by adding options for your use on them
    TinyMCE Custom Buttons - How to add functionality to the TinyMCE Visual/HTML editor for post/page content

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