3v4l.org

run code in 300+ PHP versions simultaneously
<?php unset($GLOBALS['foo']); unset($GLOBALS['foo']['bar']);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.27, 8.0.0 - 8.0.15, 8.1.0 - 8.1.2

preferences:
50.26 ms | 527 KiB | 12 Q