3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; $arr = array(); while ($i < 10) { $arr[] = $i; $arr["$i key"] = "$i value"; $i++; } foreach ($arr as $k => $v) { var_dump($k, $v); }

preferences:
43.59 ms | 402 KiB | 5 Q