tengine+php-fpm，访问index.php正常，访问index.PHP却会吧php文件下载过来。

server {    listen 80;    server_name  localhost;    access_log /data/sites_logs/default.log combined;    root /data/sites/default;    index index.htm index.html index.php;    if ( $query_string ~* ".*[\;'\<\>].*" ){        return 404;    }    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|flv|ico)$ {        expires 30d;    }    location ~ .*\.(js|css)?$ {        expires 7d;    }    ###########################################隐藏index.php    location / {          index  index.htm index.html index.php;           if (!-e $request_filename) {             rewrite  ^/(.*)$  /index.php/$1  last;             break;          }      }      ##########################################pathinfo 模式#           location ~ .*\.(php|php5)?$ {#               #fastcgi_pass remote_php_ip:9000;#               fastcgi_pass unix:/dev/shm/php-cgi.sock;#               fastcgi_index index.php;#               include fastcgi.conf;#           }    location ~ \.php$ {        fastcgi_pass   phpfpm:9000;        fastcgi_index  index.php;        include        fastcgi_params;        #设置PATH_INFO并改写SCRIPT_FILENAME,SCRIPT_NAME服务器环境变量          set $fastcgi_script_name2 $fastcgi_script_name;          if ($fastcgi_script_name ~ "^(.+\.php)(/.+)$") {              set $fastcgi_script_name2 $1;              set $path_info $2;          }          fastcgi_param   PATH_INFO $path_info;          fastcgi_param   SCRIPT_FILENAME   $document_root$fastcgi_script_name2;          fastcgi_param   SCRIPT_NAME   $fastcgi_script_name2;      }}