1.20 I receive the error "cannot load MySQL extension, please check PHP Configuration".

To connect to a MySQL server, PHP needs a set of MySQL functions called "MySQL extension". This extension may be part of the PHP distribution (compiled-in), otherwise it needs to be loaded dynamically. Its name is probably mysql.so or php_mysql.dll. phpMyAdmin tried to load the extension but failed.
Usually, the problem is solved by installing a software package called "PHP-MySQL" or something similar.

phpMyAdmin - 错误

无法载入 mysql 扩展，
请检查 PHP 配置 - 文档

您的 PHP 似乎没有安装运行 WordPress 必须的 MySQL 拓展。

本人安装apache 2.2,php5.2.8,然后按照提示安装wordpress,访问install页面时，出现"您的 PHP 似乎没有安装运行 WordPress 必须的 MySQL 拓展。"，是怎么回事？要怎么样才能通过这个错误提示，

解决办法在ubuntu里是添加下面命令解决

sudo apt-get install PHP-MySQL

然后要重启apache2

sudo /etc/init.d/apache2 restart

如果是windows环境按照如下处理

你可能忘记打开php.ini中的mysql扩展打开了.
打开php.ini,去掉下面这个最前面的分号.
;extension=php_mysql.dll
并且重启IIS.