Friendly file sizes

[Anon]

I have a need to generate "friendly" file sizes. For example if a file size is 50378 bytes long, then I'd like to tell the user that it's "49KB". Similiary, a file size of 5031634 bytes should calculate to "4.9MB".

Is there an existing function that does this? Or can anyone point me to some code?

[Anon]

$size=12045365;
print $size." bytes\n";
print round($size/1024)."KBytes\n";
print round($size/1048576)."MBytes\n";

you just have to build an IF statement to check which of the lines you want to print.

[Anon]

I just created a PHP kilo/mega/giga aware unit
converter. Works with +ve numbers only:

Enjoy!

// applies a unit and scales a number accordingly - uses
// supports kilo, mega and giga - ONLY!!! works with positive
// numbers!!!
function unitConvert($number)
{
$kilo = 1024;
$mega = $kilo1024;
$giga = $mega1024;
$strNum = $number . " "; // default in case number is smaller than a kilo
$sigFigMult = 100; // the larger the value the more 'accurate' the number,
// the number of 0's determines the number of values
// past the decimal point

if ($number >= $giga)
{
$number = (int)(($sigFigMult$number)/$giga);
$strNum = (int)$number/$sigFigMult . " G";
}
else if ($number >= $mega)
{
$number = (int)(($sigFigMult$number)/$mega);
$strNum = (int)$number/$sigFigMult . " M";
}
else if ($number >= $kilo)
{
$number = (int)(($sigFigMult*$number)/$kilo);
$strNum = (int)$number/$sigFigMult . " k";
}

return($strNum);
}

[Anon]

...sorry about the lack of tabs/spaces, I definitely had
them, the page script must have removed 'em!

• Rod

[Anon]

Thanks for the code, Rod. It was just what I was looking for!

[Anon]

Nice one Rod!

[Anon]

No problem - glad to have helped out!

• Rod

[amelhedi]

check this up

$kilo = 1024;
$mega = $kilo1024;
$giga = $mega1024;

// File in bits
$FSize = 'what ever';

// File in kilo
$FSizeKl = round($FSize/($kilo/10))/10;

// File in mega
$FSizeMg = round($FSize/($mega/10))/10;

// File in Giga
$FSizeGg = round($FSize/($giga/10))/10;