3v4l.org

run code in 300+ PHP versions simultaneously
<?php readonly class DTO { public function __construct( public readonly int $a, public readonly int $b, public readonly int $c, public readonly int $d, public readonly int $e, public readonly int $f, ) {} } $dto = new DTO(1, 2, 3, 4, 5, 6); var_dump($dto); $copy = new DTO(...(['d' => 42] + get_object_vars($dto))); var_dump($copy);
Output for 8.2.10 - 8.2.30, 8.3.5 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
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(42) ["e"]=> int(5) ["f"]=> int(6) }
Output for 8.1.24 - 8.1.34
Parse error: syntax error, unexpected token "readonly", expecting end of file in /in/ZWX5G on line 3
Process exited with code 255.
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