Question

I have a stupid question. I want to learn PHP after 2-3 years of C#.

And like in C#

public enum SimpleEnum{
   One,
   Two,
   Three
}

public interface ISimple
{
  int Id;
  SimpleEnum SimpleType;
}

What I did in PHP:

final class SimpleEnum {
  const ONE = 1;
  const TWO = 2;
  const THREE = 3;
}

interface ISimple {
  public $value1;

  SimpleEnum $myEnum;
}

But the error occurred from SimpleEnum in ISimple.

Maybe is not possible but I want to ask you how to use SimpleEnum as type in interface ?

Thank you

Answer 1

Not possible but if you need $myEnum to specifically be SimpleEnum, then just require it in the contract (interface) so any exhibiting classes will HAVE TO follow suit. You can do this by type-hinting

interface ISimple {
    public function setMyEnum(SimpleEnum $myEnum);
}