1·Use of PHP's safe mode is one technique for meeting this goal, but it can also unduly limit users, and some PHP applications simply don't function with this facility enabled.
使用PHP的安全模式是实现这一目标的一种技术,但是它也过度地限制了用户,而且启用了这个设施之后,一些PHP应用程序就不能发挥作用。