我已将joomla和wordpress文件从旧服务器更改为新服务器。在前端和管理端，它的工作没有任何错误。但是在数据库（phpmyadmin）部分中，它显示了一些类似这样的警告消息。
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/Calcutta' for 'IST/5.0/no DST' instead in /usr/share/phpmyadmin/libraries/db_info.inc.php on line 88
Warning: strftime() [function.strftime]: It is not safe to rely on the system's timezone settings.
You are *required* to use …