Convert bytes.

<?
function convert($b) {
	# Perform Calculation
	$kb = $b / 1024;
	$mb = $kb / 1024;
	$gb = $mb / 1024;
	$tb = $gb / 1024;
	$pb = $tb / 1024;
	# Round As Necessary
	if ($b > 1) {$s = round($b, 2) . "B";}
	if ($kb > 1) {$s = round($kb, 2) . "KB";}
	if ($mb > 1) {$s = round($mb, 2) . "MB";}
	if ($gb > 1) {$s = round($gb, 2) . "GB";}
	if ($tb > 1) {$s = round($tb, 2) . "GB";}
	if ($pb > 1) {$s = round($pb, 2) . "PB";}
	# Return Convert
	return $s;
}
?>