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<?php class Subclass extends DateTimeImmutable { } $foo = new Subclass('2023-01-01 12:12:13'); $foo2 = $foo->modify('+7 days'); /** @psalm-trace $foo2 */ echo get_class($foo2);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Subclass

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