Fixed typo in summary

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Once I fixed the two unrelated errors in your example (a class cannot be named "Parent" and call_user_func_array requires a second argument), this seems to work without issue: https://3v4l.org/huQ0d

Can you create a script which directly reproduces the error you encountered?

Thanks

Thanks for the feedback, I apparently missed a subtlety in this. This code better reflects the case:

class Parent {
  function A() {}
}

class Child extends Parent {
  static function B() {
    call_user_func_array('parent::A'); // problem
  }
}

$child = new Child();

$child->B();

---

The important difference here is that we're attempting to call a parent instance method from a child static method. We are calling it from a child instance, but the context is now static (since we're in a static method).

As I've thought through this, I think the pattern is bizarre in itself. It does present the fact that there's no discreet class versus instance identifier (e.g. self vs $this) for a parent, but I don't think a parent instance keyword even makes sense. What would it even describe?

Changing the child method from static to instance resolves the issue, and there's certainly no bug here, so I'm closing this. It was a fascinating trip in OOP, though. :)