Using static variable as argument default

1

How do you use a class’ static variable as a default argument to one of its methods?


class MyClass
{
   public static $MY_CONST = 5;
   public function myFunction($var = MyClass::$MY_CONST) {
      echo $var;
   }
}

I get this error on the method header:


Parse error: syntax error, unexpected T_VARIABLE, expecting T_STRING