<?php

$sayilar = '2,54,422,423,442,555';
$sayilar = explode(',', $sayilar);

$duzgun_sayilar = sort($sayilar);

foreach ($duzgun_sayilar as $sayi)
{
	echo 'sırano:', $sayi;

	if (!isset($i) || $i == 5)
		$i = 0;
	$i = $i + 1;
	if ($i == 5)
		echo '<br />';
}

?>