$config_read_hidden
配置读取隐藏变量
If set to true, hidden sections (section names beginning with a period)
in config files can be read from templates. Typically you would leave
this false, that way you can store sensitive data in the config files
such as database parameters and not worry about the template loading
them. false by default.
如果设为真,在配置文件中的隐藏节块(******不会翻译啦)可以从模版中读取出来.典型的你会设为假,这样你可以在配置文件里存放敏感数据,例如数据库参数,而不用担心模版会调用他们.默认情况下,该变量设为假.