How should class MyObject be defined for the following code to work properly? Assume $array is an

How should class MyObject be defined for the following code to work properly? Assume $array is an

array and MyObject is a user-defined class.

$obj = new MyObject();

array_walk($array, $obj);
A . MyObject should extend class Closure
B . MyObject should implement interface Callable
C . MyObject should implement method _call
D . MyObject should implement method _invoke

View Answer

Answer: D