What is the difference between `add_action()` and `add_filter()` in WordPress?

Question

WordPress Fundamental — Medium

What is the difference between `add_action()` and `add_filter()` in WordPress?

Accepted Answer

In WordPress, `add_action()` is used to execute a function at a specific hook point without returning data, while `add_filter()` is used to modify and return data passed through a hook. This difference is crucial in understanding how to interact with hooks in WordPress development.