What Is an Action
Action in WordPress is a way to programmatically modify your site’s behavior. Actions are registered by plugins and themes and can be used to perform nearly any task you can imagine.
Actions are typically triggered by events, such as a user publishing a post or a plugin being activated. Once an action is triggered, WordPress will call any functions that have been registered for that action.
Furthermore, It allows plugins and themes to modify the behavior of WordPress without having to touch the core code. A great deal of customization and flexibility can be achieved with WordPress actions.
Difference Between Hooks, Actions, and Filters
Hooks: These are functions that can be inserted into action or filter in WordPress. Hooks provide a way for code to modify the behavior of WordPress without having to edit the core files.
Actions: Actions are functions that are triggered by an event, such as a user publishing a post or a plugin being activated. Once an action is triggered, WordPress will call any functions that have been registered for that action.
Filters: Filters are similar to actions but operate on data instead of code. You can use filters to modify nearly any piece of data in WordPress, such as the output of a post or the value of a user meta field.
Different Types of Action Functions
There are different actions that you can use for your site. Here are some of the most commonly used actions.
- add_action(): You can attach a function to a hook specified in the do_action function.
- remove_action(): This removes a function from an action hook that has been specified.
- do_action(): The “hooked” functions will be executed here.
- has_action(): Verifies that an action has been registered.
