3v4l.org

run code in 300+ PHP versions simultaneously
<?php $iterator = new \AppendIterator(); $iterator->append($iterator);
Output for 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13

Process exited with code 139.
preferences:
45.96 ms | 406 KiB | 5 Q