server {
    listen 8870 default_server;
    listen [::]:8870 default_server;
    server_name _;
    root /var/www/site-with-php7.0;
    index index.php;
    location / {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php7.0-fpm.sock; # adjust for the listen setting discussed above
    }
}