关于php加载mysql有关问题~
关于php加载mysql问题~~急
最近重做系统以后，重新配置php环境，安装apache和php结合没有问题，安装mysql也没有问题，在cmd中也可以正常使用，当我安装phpmyadmin时候，显示mysqli.dll没有开启，然后安装discuz的时候显示mysql_connect不可用，我在php.ini中已经打开了相关的组件，并且已经将组件的路径配置到系统环境变量中，但是还是出现以上的问题。（没装系统之前全部都正常，apache版本为2.2.6，php版本为5.2.9，mysql版本为5.5.12 不知道和版本有关系么，我之前也是用的同样的版本啊），求高人解答~~急啊
------解决方案--------------------
extension=php_mysql.dll
extension=php_mysqli.dll
还有 extension_dir 是否正确
重装系统前应备份 php 或 php.ini、mysql\data、httpd.conf
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