OSS\OssClient::generateHostname PHP Метод

    private function generateHostname($options)
    {
        if ($this->hostType === self::OSS_HOST_TYPE_IP) {
            $hostname = $this->hostname;
        } elseif ($this->hostType === self::OSS_HOST_TYPE_CNAME) {
            $hostname = $this->hostname;
        } else {
            // 专有域或者官网endpoint
            $hostname = $options[self::OSS_BUCKET] == '' ? $this->hostname : $options[self::OSS_BUCKET] . '.' . $this->hostname;
        }
        return $hostname;
    }