3v4l.org

run code in 300+ PHP versions simultaneously
<?php $cnt = 5; $array = array_fill(1, ($cnt), '-'); for($i=1;$i<($cnt+1);$i++){ array_shift($array); array_push($array, $i); echo implode(" ", $array); echo "\n"; }

preferences:
35.11 ms | 402 KiB | 5 Q