3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3,4); foreach ($a as $k => $v) { echo $k, ':', $v, "\n"; if ($k == 2) { $a[8] = 16; } } print_r($a);

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54.4 ms | 402 KiB | 5 Q