3v4l.org

run code in 500+ PHP versions simultaneously
<?php class MyClass { public function __construct( readonly string $var, ) {} } $a = new MyClass('foo'); var_dump($a);
Output for 8.1.30 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
object(MyClass)#1 (1) { ["var"]=> string(3) "foo" }

preferences:
29.91 ms | 1496 KiB | 7 Q