nginx 根据参数选择文档根目录

server
  {
    listen       80;
    server_name  testmanage.h5.91wan.com;
    index index.html index.htm index.php;
#char szArgs[URI_LEN + 1] = {0};
#echo memcpy(szArgs, r->args.data, r->args.len);
#$arg_a;

set $website $arg_version;       
 root  /data/www/h5.91wan.com/$website;

    #limit_conn   crawler  20;

#    location /nginx_status {
 #     stub_status on;
  #    access_log   off;
  #  }

    location ~ .*\.(php|php5)?$
    {
      if ( $fastcgi_script_name ~ \..*\/.*php ) {
       return 403;
      }
      #fastcgi_pass  unix:/tmp/php-cgi.sock;
      fastcgi_pass  127.0.0.1:9000;
      fastcgi_index index.php;
      include /usr/local/nginx/conf/fcgi.conf;
    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
      expires      6h;
      #access_log /www/logs/img.chinaih.com.log;
    }
    location ~ .*\.(js)?$
    {
      expires      5m;
    }
    location ~ .*\.(css)?$
    {
      expires      1h;
    }

    access_log off;

   }