Bytes conversion

[Excalibur82]

Is there already a functions or class that can be used to convert bytes to whatever it should be such as KB, MB, GB, etc?

I have been trying to find a conversion method to include with my mod but every one of the method's I have found don't work, either I can't seem to get them to match vB or something.

Here is one I found:

PHP Code:

function ByteSize($bytes) 
    {
    $size = $bytes / 1024;
    if($size < 1024)
        {
        $size = number_format($size, 2);
        $size .= ' KB';
        } 
    else 
        {
        if($size / 1024 < 1024) 
            {
            $size = number_format($size / 1024, 2);
            $size .= ' MB';
            } 
        else if ($size / 1024 / 1024 < 1024)  
            {
            $size = number_format($size / 1024 / 1024, 2);
            $size .= ' GB';
            } 
        }
    return $size;
    }

// Returns '19.28mb'
print ByteSize('20211982'); 


Another method I found:

PHP Code:

    function formatRawSize($bytes) {
 
        //CHECK TO MAKE SURE A NUMBER WAS SENT
        if(!empty($bytes)) {
 
            //SET TEXT TITLES TO SHOW AT EACH LEVEL
            $s = array('bytes', 'kb', 'MB', 'GB', 'TB', 'PB');
            $e = floor(log($bytes)/log(1024));
 
            //CREATE COMPLETED OUTPUT
            $output = sprintf('%.2f '.$s[$e], ($bytes/pow(1024, floor($e))));
 
            //SEND OUTPUT TO BROWSER
            return $output;
 
        }
   } 


Thanks in advance