Warning: strtotime() [function.strtotime]: 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 in/usr/local/apache/htdocs/cacti/include/global_constants.php on line 165
解决方法：
# vim /usr/local/apache/htdocs/cacti/include/global_constants.php
添加如下内容：
date_default_timezone_set('Asia/Chongqing');
重启httpd 刷新页面 问题解决.
