Internal enums can be cloned and compared

The following code:

<?php

var_dump(clone(ZendTestIntEnum::Foo) === ZendTestIntEnum::Foo);

Resulted in this output:

bool(false)

But I expected this output instead:

Uncaught Error: Trying to clone an uncloneable object of class ZendTestIntEnum

This is because we don't override the default object handlers in zend_register_internal_enum().

PHP 8.3

No response

Set default_object_handlers when registering internal enums

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