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WordPress for Web Developers: An Introduction for Web Professionals by Stephanie Leary

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CHAPTER 11

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Beginning Theme and Plugin Development

There’s a lot of overlap between theme and plugin development in WordPress. Both themes and plugins rely on core functions and APIs, especially the Options API. In this chapter, you’ll learn about these common functions and development concepts, and how WordPress theme and plugin files are organized.

If you’re curious about WordPress development, you probably opened the files of a theme or plugin before you bought this book, or perhaps you started reading the WordPress core code itself. You probably saw a lot of functions that confused you, like __() and do_action(). This doesn’t look like any ...

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