添加php主机，放置conf.d目录,由nginx.conf加载

server {
    listen 80;
    server_name (站点域名 没有就用IP代替);
    root  /www/first(网站根目录);
    index index.php index.html;
    location ~ \.php$ {
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }

}