function moveNElementsToTheEnd ($initArray, $n)
{
        if ($n > 0) {
                $initArray[] = array_shift($initArray);
                return moveNElementsToTheEnd($initArray, $n-1);
        }
        return $initArray;
}

/*

1..10, n=3

1, 2, 3, 4, 5, 6, 7, 8, 9, 10
2, 3, 4, 5, 6, 7, 8, 9, 10, 1
3, 4, 5, 6, 7, 8, 9, 10, 1, 2
4, 5, 6, 7, 8, 9, 10, 1, 2, 3

1..13, n=3

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 1
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 1, 2
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 1, 2, 3

*/