3v4l.org

run code in 300+ PHP versions simultaneously
<?php class AlphaBeta {} $a = serialize(new AlphaBeta); echo $a, "\n"; $a = serialize(unserialize($a)); echo $a, "\n";
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
O:9:"AlphaBeta":0:{} O:9:"AlphaBeta":0:{}
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
O:9:"alphabeta":0:{} O:9:"alphabeta":0:{}
preferences:
262.87 ms | 401 KiB | 370 Q