PHP File Size Calculator / Dosya Boyut Hesaplayıcı

[COLOR="White"]function calcSize($bytes){
    $fsize = $bytes;
    switch ($bytes):
        case $bytes < 1024:
            $fsize = $bytes .' B'; break;
        case $bytes < 1048576:
            $fsize = round($bytes / 1024, 2) .' KB'; break;
        case $bytes < 1073741824:
            $fsize = round($bytes / 1048576, 2) . ' MB'; break;
        case $bytes < 1099511627776:
            $fsize = round($bytes / 1073741824, 2) . ' GB'; break;
    endswitch;
    return $fsize;
}[/COLOR]

function getFolderSize(string $dir) : int{
        if(is_dir($dir) or is_readable($dir)){
            $dirNameDir[] = $dir;
            $size = 0;
            do{
                $dirName = array_shift($dirNameDir);
                $folder = opendir($dirName);
                while(($file = readdir($folder)) !== false){
                    if($file !== '.' and $file !== '..' and is_readable(($new = $dirName . DIRECTORY_SEPARATOR . $file))){
                        if(is_dir($new))
                            $dirNameDir[] = $new;

                        $size += filesize($new);
                    }
                }
                closedir($folder);
            }while(count($dirNameDir) > 0);

            return $size;
        }

        return 0;
    }

function getSymbolByQuantity(float $bytes) : string{
        $symbols = ['Bayt', 'Kilobayt', 'Megabayt', 'Gigabyte', 'Terabyte', 'PiB', 'EiB', 'ZiB', 'YiB'];
        $exp = (int)floor(log($bytes) / log(1024));
        return sprintf('%.2f ' . $symbols[$exp], ($bytes / pow(1024, floor($exp))));
    }