/** * Check if any action has been registered for a hook. * * @see hasFilter() hasAction() is an alias of hasFilter(). * * @param string $tag The name of the action hook. * @param bool|callable $function_to_check optional. * * @return mixed If $function_to_check is omitted, returns boolean for whether the hook has anything registered. * When checking a specific function, the priority of that hook is returned, or false if the function is not attached. * When using the $function_to_check argument, this function may return a non-boolean value that evaluates to false * (e.g.) 0, so use the === operator for testing the return value. */ function hasAction($tag, $function_to_check = false) { return HuradHook::has_action($tag, $function_to_check); }