object(ObjectOne)#2 (1) {
  ["x"]=>
  int(2)
}
int(2)
int(3)
Overloaded::__set(y,3)
int(3)
Overloaded::__get(y)
int(3)
Overloaded::__set(z,Object)
object(ObjectOne)#3 (1) {
  ["x"]=>
  int(4)
}
Overloaded::__get(z)
int(4)
Overloaded::__get(z)
int(5)
Overloaded::__get(z)
int(6)