一个网站要支持不同的城市之间切换，现在有两种想法：
#1. http://beijing.website:9090/cal/index.php?pageindex=1
怎么重定向成： http://www.website:9090/cal/index.php?pageindex=1&city=beijing

#2.  http://www.website:9090/beijing/cal/index.php?pageindex=1 怎么重定向成
http://www.website:9090/cal/index.php?pageindex=1&city=beijing

求重定向url，谢谢~~~
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FROM 222.190.111.*