has_action
has_action ( $tag, $function_to_check = false )
Parameters:- (string) tag The name of the action hook.
- (callable|bool) function_to_check Optional. The callback to check for. Default false.
See:Returns:- (bool|int) 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.
Defined at: - Introduced in WordPress: 2.5.0
- Deprecated in WordPress: —
Description
Check if any action has been registered for a hook.