nginx服务器纳闷析PHP

server{
    listen 8881;
    server_name d2.test.com;
    index index.html index.htm index.php;
    root /home/web/d2.test.com/root/;

    location / {
       index  index.php index.html;
       if (!-e $request_filename){
           #rewrite ^/(.*)$ /index.php?/$1? last;
           rewrite (.*) /index.php/$1;
        }
    }

    location ~ \.php {
       fastcgi_pass  127.0.0.1:9000;
       fastcgi_index index.php;
       include fastcgi_params;
       fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
       fastcgi_param PATH_INFO $fastcgi_script_name;
       access_log off;
    }
}