WordPress - Hooks

Hooks are a powerful way to modify data or do something at a particular time and in a specific place with the theme.

They are so powerful, in fact, that I had a challenging time grasping the concept when I first started.

In this video — my goal is to break down the concept of hooks in WordPress so that you can get started using them.

Here's an excerpt from the WordPress documentation:

Hooks are a way for one piece of code to interact/modify another piece of code at specific, pre-defined spots. They make up the foundation for how plugins and themes interact with WordPress Core, but they're also used extensively by Core itself.

There are two types of hooks: Actions and Filters. To use either, you need to write a custom function known as a Callback, and then register it with a WordPress hook for a specific action or filter.

Actions allow you to add data or change how WordPress operates. Actions will run at a specific point in the execution of WordPress Core, plugins, and themes. Callback functions for Actions can perform some kind of a task, like echoing output to the user or inserting something into the database. Callback functions for an Action do not return anything back to the calling Action hook.

Filters give you the ability to change data during the execution of WordPress Core, plugins, and themes. Callback functions for Filters will accept a variable, modify it, and return it. They are meant to work in an isolated manner, and should never have side effects such as affecting global variables and output. Filters expect to have something returned back to them.

WordPress provides many hooks that you can use, but you can also create your own so that other developers can extend and modify your plugin or theme.

------

Download LocalWP
https://localwp.com/

Interested in learning more? Check out the WordPress docs:
https://developer.wordpress.org/plugins/hooks/

WordPress Hook - the_content
https://developer.wordpress.org/reference/hooks/the_content/

WordPress Hook - the_head
https://developer.wordpress.org/reference/hooks/wp_head/

Тэги:

#web #development #web_development #wordpress #theme #theme_development #php #functions #content_management_system #cms #open_source

Скачать видео