WP_Hook::has_filters() WordPress Method

The WP_Hook::has_filters() method is used to check if any filters have been registered for a given hook. This is useful for checking if a particular hook has any registered callbacks before running the hook. If no callbacks are registered, then there is no need to run the hook.

WP_Hook::has_filters() #

	public function has_filters() {
		foreach ( $this->callbacks as $callbacks ) {
			if ( $callbacks ) {
				return true;
			}
		}

		return false;
	}