3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [1, 2, 3, 4, 5]; foreach ($array as $value) { echo $value . ' - ' . current($array); }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1 - 12 - 13 - 14 - 15 - 1
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
1 - 22 - 23 - 24 - 25 - 2

preferences:
204.93 ms | 402 KiB | 182 Q