3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [0,1,2,3,4,5,6,7,8,9]; foreach ($arr as $item) { if ($item > 4) { echo $item; unset($item); } } var_dump($arr);
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
56789array(10) { [0]=> int(0) [1]=> int(1) [2]=> int(2) [3]=> int(3) [4]=> int(4) [5]=> int(5) [6]=> int(6) [7]=> int(7) [8]=> int(8) [9]=> int(9) }
preferences:
66.27 ms | 406 KiB | 5 Q