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<?php class Subclass extends DateTimeImmutable { public function __construct(...$args) { parent::__construct(...$args); var_dump("construct"); } public function __clone() { var_dump("clone"); } } $foo = new Subclass('2022-05-05 12:12:13'); var_dump($foo); $foo2 = $foo->modify('+7 days'); echo get_class($foo2), "\n"; var_dump($foo2);

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