解决php的It is not safe to rely on……

访问网站提示：

date(): It is not safe to rely on the system’s timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected ‘Asia/Chongqing’ for ‘CST/8.0/no DST’ instead

解决：

    修改php.ini

添加：date.timezone = "Asia/Shanghai"