Luckily, someone has already tackled this problem for us and all we have to do is use the PEAR::DB module, which provides a consistent interface to several popular database servers.

• 幸好，已经有人为我们处理好了这些问题了，我们要做的就是使用PEAR::DB模块，它对一些通用的数据库服务器都提供了统一的接口。