public static function fileSize($check, $operator = null, $size = null)
    {
        $file = static::getFilename($check);
        if ($file === false) {
            return false;
        }

        if (is_string($size)) {
            $size = Text::parseFileSize($size);
        }
        $filesize = filesize($file);

        return static::comparison($filesize, $operator, $size);
    }