One way:
<?php
for($num = 0x9CF90000; $num <= 0x9CF910CB; $num++)
{
echo sprintf("%X<br />\n", $num);
}
?>
Another way:
<?php
$nums = range(0x9CF90000, 0x9CF910CB);
foreach($nums as $num)
{
echo dechex($num)."<br />\n";
}
?>
The dechex() and sprintf() would be interchangeable with either method.