PHP获取阿里云accessToken

先安装sdk

composer require alibabacloud/sdk

需要知道 AccessKeyID，AccessKeySecret

red->ttl($key);
        if ($ttl == -2) { // 不存在
            /**
             * 第一步：设置一个全局客户端
             * 使用阿里云RAM账号的AccessKey ID和AccessKey Secret进行鉴权
             */
            AlibabaCloud::accessKeyClient(
                C('ALI.AccessKeyID'),
                C('ALI.AccessKeySecret')
            )
                ->regionId("cn-shanghai")
                ->asDefaultClient();
            try {
                $response = AlibabaCloud::nlsCloudMeta()
                    ->v20180518()
                    ->createToken()
                    ->request();
                // print $response . "\n";
                $token = $response["Token"];

                if ($token != NULL) {
                    // print "Token 获取成功：\n";
                    // print_r($token);
                    $difftime = $token['ExpireTime'] - time() - 1000;
                    $this->red->setex($key, $difftime, $token['Id']);
                    return $token['Id'];
                } else {
                    return false;
                }
            } catch (ClientException $exception) {
                // 获取错误消息
                return false;
                // print_r($exception->getErrorMessage());
            } catch (ServerException $exception) {
                // 获取错误消息
                return false;
                // print_r($exception->getErrorMessage());
            }
        } else {
            return $this->red->get($key);
        }
    }
}