When you write a PHP function in WordPress
function.php file, there should be a way to call that function to execute. WordPress has something called Hooks that you can use to call your custom-written function.
Hooks in WordPress are a core feature of the WordPress development framework that allow developers to modify or add functionality to different parts of a WordPress website without directly modifying the core code. They provide a way to interact with and customize the behavior of WordPress themes and plugins.
There are two types of hooks in WordPress:
Example of an action hook:
Example of a filter hook:
$modified_content = apply_filters('my_custom_filter', $content);
Hooks follow a specific naming convention and have unique names to distinguish them. WordPress core, themes, and plugins provide various hooks that developers can leverage to extend and customize WordPress functionality.
Hooks are essential for creating custom themes, building plugins, and making modifications to existing functionality without directly modifying core files. They allow for better code organization, maintainability, and compatibility with future updates of WordPress.
Developers can add their custom functions or code to hooks using functions like
add_action() for action hooks or
add_filter() for filter hooks. By utilizing hooks effectively, developers can extend the capabilities of WordPress and create more dynamic and flexible websites.