#### 1. redis 扩展下载 --- **redis 扩展下载地址** [https://windows.php.net/downloads/pecl/releases/redis](https://windows.php.net/downloads/pecl/releases/redis) **查看当前PHP的四个信息** ![](https://img.itqaq.com/art/content/c3d4fa0025f7cb50011487107bddfce9.png) **锁定适合当前PHP的扩展** ![](https://img.itqaq.com/art/content/a4da9a65aade67efec336ab09d518d20.png) #### 2. 将 redis 扩展放入 PHP扩展目录 --- **解压压缩包,复制 redis 扩展** ![](https://img.itqaq.com/art/content/e37eeb90bcdacebe88d4edbf3221a05c.png) **将扩展放在PHP的扩展目录 (ext) 中** ![](https://img.itqaq.com/art/content/05833a17c9a86f26d51a7358c5cf6f88.png) **修改PHP配置文件,使其加载 redis 扩展** ``` extension=php_redis.dll ``` #### 3. phpinfo() 能看到 redis 代表安装成功 --- **加载了 redis 扩展才能使用 Redis 类,否则将提示 Redis 类不存在** ```php $redis = new Redis; $redis = $redis->connect('127.0.0.1', 6379); ``` ![](https://img.itqaq.com/art/content/cef3c26c1c1d0009bdeb256be6973760.png)