Fatal error: Declaration of App\Library\Cache\Backend\Redis::save($keyName = NULL, $content = NULL, $lifetime = NULL, bool $stopBuffer = true): bool must be compatible with Phalcon\Cache\Backend\Redis::save($keyName = NULL, $content = NULL, $lifetime = NULL, $stopBuffer = NULL) in /web/course-tencent-cloud/app/Library/Cache/Backend/Redis.php on line 315

报错信息如上。大概看了下

无redis.php 这怎么解决呢？

因为我们服务器上还有其他站点，无法使用docker安装