Nginx 判断手机还是 PC

Nginx 判断是移动端还是手机端，两个端互相跳转

代码如下

upstream m_app_server {
  server 0.0.0.0:9001;
}
server {
  listen 80;
  server_name m.264.cn;
  root /path/to/mobile_site;  # ...
  location / {
    proxy_set_header X-Real-IP $remote_addr;    # ...
    if ($http_user_agent ~* '(Android|webOS|iPhone|iPod|BlackBerry)') {
      set $mobile_request '1';
    }
    if ($http_cookie ~ 'mobile_request=full') {
      set $mobile_request '';
    }
    # 改这里
    if ($mobile_request != '1') {
      rewrite ^.+ http://www.264.cn$uri;
    }    # serve cached pages ...
    if (!-f $request_filename) {
      proxy_pass http://m_app_server;
      break;
    }
  }
}