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<?php final class B {} class_alias(B::class, 'a'); $serializedInstanceOfA = 'O:1:"a":0:{}'; var_dump(unserialize($serializedInstanceOfA));
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
object(B)#1 (0) { }
preferences:
67.94 ms | 406 KiB | 5 Q