3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public string $prop; } $a = new A; $a->prop = 'some test'; echo serialize($a);
Output for 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
O:1:"A":1:{s:4:"prop";s:9:"some test";}
preferences:
51.8 ms | 406 KiB | 5 Q