Fix get_object_vars() return type

[Triplkrypl]

I found in crash way, that get_object_vars can return array with int key.

https://onlinephp.io/c/9a628

[staabm]

Can numeric keys only occur for objects without a class?

If so it might make sense to use a return type extension instead which can narrow the type depending on the context.

edit: and I think you should target PHPStan 2.1.x

[Triplkrypl]

Can numeric keys only occur for objects without a class?

Not exactly classes extending \stdClass or has #[\AllowDynamicProperties] attribute.
Fore the classes is this code valid and before deprecation is code valid for every object:

$obj = new \stdClass();
$obj->{1} = 42;

If anyone want make dynamic return type detection, condition only for class is not enough.
For now in PHP 8 every object can have only numeric property, it is only deprecation error:
https://onlinephp.io/c/9704f

and I think you should target PHPStan 2.1.x

I am not sure if you support fixes for function interfaces in phpstan version 1.