nginx中如何隐藏php

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

server
 {
 listen 80;
 #listen [::]:80 default_server ipv6only=on;
 server_name jiqing.dexin.com;
 index index.html index.htm index.php admin.php;
 root /home/wwwroot/default/dexin/dragon/public;
 #error_page 404 /404.html;
 include enable-php-pathinfo.conf;
 location /nginx_status
 {
 stub_status on;
 access_log off;
 }
 location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
 {
 expires 30d;
 }
 location ~ .*\.(js|css)?$
 {
 expires 12h;
 }
 location ~ /\.
 {
 deny all;
 }
 location / {
 if (!-e $request_filename) {
 rewrite ^(.*)$ /index.php?s=/$1 last;
 }
 }
 access_log /home/wwwlogs/access.log;
 }