假设你有一套登录注册业务。一开始很简单，老板说只需要常规的注册登录就行。
I want to create sub-domains using PHP on the fly. Suppose a user registers h开发者_StackOverflow中文版imself as a name \"ABC\". Then I want to create a sub-domain named \'ABC.mydomain.com\' automatic
加载中,请稍侯......