src/Response.php
protected function _parseByteRange()
    {
        if ($httpRange = Arr::get($_SERVER, 'HTTP_RANGE'))
        {
            Base::getLog()->debug(__METHOD__ . ' get HTTP_RANGE', [
                'string' => $httpRange,
            ]);
            preg_match_all('/(-?[0-9]++(?:-(?![0-9]++))?)(?:-?([0-9]++))?/', $httpRange, $matches, PREG_SET_ORDER);
            return $matches[0];
        }
        else
        {
            return false;
        }
    }
protected function _parseByteRange()
    {
        if ($httpRange = Arr::get($_SERVER, 'HTTP_RANGE'))
        {
            Base::getLog()->debug(__METHOD__ . ' get HTTP_RANGE', [
                'string' => $httpRange,
            ]);
            preg_match_all('/(-?[0-9]++(?:-(?![0-9]++))?)(?:-?([0-9]++))?/', $httpRange, $matches, PREG_SET_ORDER);
            return $matches[0];
        }
        else
        {
            return false;
        }
    }
解析HTTP_RANGE

@return array|false