3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function __construct(public array $foo = [1, 2, 3], public string $bar = 'baz') {} } var_dump(serialize(new Foo()));
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
string(74) "O:3:"Foo":2:{s:3:"foo";a:3:{i:0;i:1;i:1;i:2;i:2;i:3;}s:3:"bar";s:3:"baz";}"

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69.26 ms | 406 KiB | 5 Q