Nginx提供原始php

Question

我在Ubuntu上正确地监听127.0.0.1:9000的PHP-FPM设置，它似乎正确地产生了一切，我的nginx也适用于普通的html，这是nginx.conf

user www-data;
worker_processes 4;
pid /run/nginx.pid;

events {
    worker_connections 768;
}

http {
    keepalive_timeout 65;
    types_hash_max_size 2048;

    include /etc/nginx/mime.types;

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}

这是实际的服务器：

    server {
            listen       80;
            server_name  localhost;
            index  index.php index.html index.htm;
            root html;

            location ~ \.php$ {
               fastcgi_index   index.php;
               fastcgi_pass    127.0.0.1:9000;
               include         /etc/nginx/fastcgi_params;
               fastcgi_param   SCRIPT_FILENAME    $document_root$fastcgi_script_name;
               fastcgi_param   SCRIPT_NAME        $fastcgi_script_name;
            }
    }

我已经为服务器尝试了不同的配置但结果是相同的，PHP文件服务，我得到提示从浏览器保存它。我该怎么做才能解决这个问题？