Convert bytes. Converts an input of bytes into kilobytes and upwards.

<?php
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;
}
?>

Usage

print convert(34242342);