After installing Redis on WordPress, setting a password prevented Redis from connecting; as a result, Redis could not be accessed: `SELECT` Failed: NOAUTH – Authentication required.

This is the most widely used article online – it can solve 80% of Redis-related issues!

What should I do if the Redis Object Cache plug-in cannot be linked after wordpress redis changes the password?

Of course, an additional 20% needs to be contributed.wp-config.phpLet's go!

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I was previously using the Redis plugin.object-cache.phpThe document contained Redis-related code, but it didn't work this time. After searching for a long time, I finally found a solution!

Open this.wp-config.phpdocument!

Add the following code:

define('WP_REDIS_PASSWORD', '你的密码'); # Redis密码

Redis Other Configuration Parameters

define('WP_REDIS_CLIENT', 'pecl'); # 指定用于与Redis通信的客户端, pecl 即 The PHP Extension Community Library
define('WP_REDIS_SCHEME', 'tcp'); # 指定用于与Redis实例进行通信的协议
define('WP_REDIS_HOST', '127.0.0.1'); # Redis服务器的IP或主机名
define('WP_REDIS_PORT', '6379'); # Redis端口
define('WP_REDIS_DATABASE', '0'); # 接受用于使用该SELECT命令自动选择逻辑数据库的数值
define('WP_REDIS_PASSWORD',''); # Redis密码
define('WP_CACHE_KEY_SALT', 'wp_'); # 设置所有缓存键的前缀（Wordpress多站点模式下使用）
define('WP_REDIS_MAXTTL', '86400');