php min max 48 for min max url http vk com images stickers 128 png ech

<?php
$min = 1;
$max = 48;
for($i=$min; $i <= $max; $i++){
$url = 'http://vk.com/images/stickers/'.$i.'/128.png';
echo "<img src='".$url."'><br />";
}
?>