有些情况下只能申请到一个域名比如a.com，当需要运行两个laravel项目时我们可以使用a.com/sub_website 访问第二个laravel项目a.com 的nginx配置添加如下配置：

location ^~ /sub_website{
        alias /data/wwwroot/****/public;
        if (!-e $request_filename) { rewrite ^ /sub_website/index.php last; }
            index index.php index.html;
            location ~ \.php$ {
                if (!-f $request_filename) {
                        return 404;
                }
                 fastcgi_pass        unix:/dev/shm/php-cgi.sock;
                 fastcgi_index       index.php;
                 fastcgi_param       SCRIPT_FILENAME $request_filename;
                 include             fastcgi_params;
        }

  }