拍拍尘土

由于session使用了memcache，造成phpmyadmin经常出现不稳定的现象，表现为进入后数秒可能退出重新登录又可以了。

p.s. 发现把phpmyadmin改为 auth_type参数的值修改为 http 就可以了


参考：

$cfg['Servers'][$i]['auth_type'] string ['HTTP'|'http'|'cookie'|'config'|'signon']
        Whether config or cookie or HTTP or signon authentication should be used for this server.
#注释：auth_type可选的参数有：http,cookie,config,signon


        'config' authentication ($auth_type = 'config') is the plain old way: username and password are stored in config.inc.php.

#注释：'config'认证($auth_type = 'config')是一种简单的方式，用户名和密码都配置在
              config.inc.php中，config认证是使用得比较多的一种认证方式。

        'cookie' authentication mode ($auth_type = 'cookie') as introduced in 2.2.3 allows you to log in as any valid MySQL user with the help of cookies. Username and password are stored in cookies during the session and password is deleted when it ends. This can also allow you to log in in arbitrary server if $cfg['AllowArbitraryServer'] enabled.

#注释：'cookie'认证模式($auth_type = 'cookie')，在phpmyadmin2.2.3版本中特别推
              荐，它允许在cookie的基础上你记录所有合法的MySQL用户，用户名和密码都保存在
              cookies中，知道会话(session)关闭，关闭之后保存在cookies里面的密码会被删
              除掉。

        'HTTP' authentication (was called 'advanced' in previous versions and can be written also as 'http') ($auth_type = 'HTTP') as introduced in 1.3.0 allows you to log in as any valid MySQL user via HTTP-Auth.

#注释：'HTTP'认证方式(在之前的版本叫做'advanced'，也可以写成'http')
               ($auth_type = 'HTTP')，在1.3.0版本中被推荐，这个认证方式允许你通过
               HTTP-Auth认证用合法的MySQL用户登录。

        'signon' authentication mode ($auth_type = 'signon') as introduced in 2.10.0 allows you to log in from prepared PHP session data. This is useful for implementing single signon from another application. Sample way how to seed session is in signon example: scripts/signon.php. You need to configure session name and signon URL to use this authentication method.

#注释：'signon'认证为单点登录模式。