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<?php class DTO { public function __construct( public int $a, public int $b, public int $c, public int $d, public int $e, public int $f, ) {} } $dto = new DTO(1, 2, 3, 4, 5, 6); var_dump($dto); $copy = new DTO(...(array_values(array_merge(get_object_vars($dto), ['d' => 43])))); var_dump($copy);
Output for git.master, git.master_jit, rfc.property-hooks
object(DTO)#1 (6) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) ["d"]=> int(4) ["e"]=> int(5) ["f"]=> int(6) } object(DTO)#2 (6) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) ["d"]=> int(43) ["e"]=> int(5) ["f"]=> int(6) }

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