I want to develop WordPress themes and plugins. What do I need to know to do this?
I have knowledge of PHP, HTML, CSS and JavaScript. I have developed a few projects using these. What is the best place to start (except Codex), is there any book? Where can I know how the core of WordPress works?
Check out this neat infographic for a good introduction to the anatomy of a wordpress theme.
http://yoast.com/wordpress-theme-anatomy/
For Plugins:
There are two places where you can code for plugin in WordPress.
1.
functions.php2. Create a folder in plugins folder, inside that folder. Create a blank
.phpfile, and code there.For Themes:
As you asked for learning wordpress themes.
Go to themes folder, try to get the structure and flow of wordpress default themes.
You’ve to code within themes folder.