human readable file size

Question

function humanFileSize($size)
{
    if ($size >= 1073741824) {
      $fileSize = round($size / 1024 / 1024 / 1024,1) . \'GB\';
    } elseif ($size >= 1048576)          


        

Answer 1

Here is a working function managing till Yottabyte:

function DisplayFileSize($size, $unit = false, $precision = 2){

$b = $size;
$kb = round($size / 1024, $precision);
$mb = round($kb / 1024, $precision);
$gb = round($mb / 1024, $precision);
$tb = round($gb / 1024, $precision);
$pb = round($tb / 1024, $precision);
$eb = round($pb / 1024, $precision);
$zb = round($eb / 1024, $precision);
$yb = round($zb / 1024, $precision);

if((!$unit && floor($kb) == 0) || $unit == "b") {
    return array("value" => FormatNumber($b), "unit" => "bytes");
} else if((!$unit && floor($mb) == 0) || $unit == "kb") {
    return array("value" => FormatNumber($kb, 2), "unit" => "Kb");
} else if((!$unit && floor($gb) == 0) || $unit == "mb") {
    return array("value" => FormatNumber($mb, 2), "unit" => "Mb");
 } else if((!$unit && floor($tb) == 0) || $unit == "gb") {
     return array("value" => FormatNumber($gb, 2), "unit" => "Gb");
 } else if((!$unit && floor($pb) == 0) || $unit == "tb") {
     return array("value" => FormatNumber($tb, 2), "unit" => "Tb");
 } else if((!$unit && floor($eb) == 0) || $unit == "pb") {
    return array("value" => FormatNumber($pb, 2), "unit" => "Pb");
 } else if((!$unit && floor($zb) == 0) || $unit == "eb") {
     return array("value" => FormatNumber($eb, 2), "unit" => "Eb");
 } else if((!$unit && floor($yb) == 0) || $unit == "zb") {
     return array("value" => FormatNumber($zb, 2), "unit" => "Zb");
} else {
    return array("value" => FormatNumber($yb, 2), "unit" => "Yb");
}

}