3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [0, 1, 2]; $ref =& $array; // Necessary to trigger the old behavior foreach ($array as $val) { var_dump($val); unset($array[1]); }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(0) int(1) int(2)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
int(0) int(2)

preferences:
270.21 ms | 402 KiB | 330 Q