3v4l.org

run code in 500+ PHP versions simultaneously
<?php #[ParamType("p", <<<'EOT' array{a: int, b:string, "complex value": "a"|"b"} EOT)] function f($p) {} // vs /** @param array{a: int, b:string, "complex value": "a"|"b"} $p */ function ff($p) {}
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.33, 8.4.1 - 8.4.26, 8.5.0 - 8.5.9

preferences:
25.75 ms | 1135 KiB | 8 Q