<?php
function sirala($basla, $bitir, $sutun)
{
    $say = 0;
    for ($i = $basla; $i >= $bitir; $i--) {
        $say++;
        printf("%02d", $i);
        echo " ";
        if ($say % $sutun == 0) {
            echo "<br />";
        }
    }
}
sirala(16, 1, 4);
?>