server {
    listen 80;
    root /var/www/html/nisite;
    index  index.php index.html index.htm;
    server_name  www2.company.com wp-newsite-stg-02.company.com;

    location / {
    try_files $uri $uri/ /index.php?$args;
    }

    location ~ .php$ {
    fastcgi_split_path_info  ^(.+.php)(/.+)$;
    fastcgi_index            index.php;
    fastcgi_pass             unix:/var/run/php/php7.2-fpm.sock;
    include                  fastcgi_params;
    fastcgi_param   PATH_INFO       $fastcgi_path_info;
    fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }

  # =================================

    location /office {
        root /var/www/html/oldsite;
    }

}

location ^~ /office {
    root /var/www/html/oldsite;

    location ~ .php$ {
        fastcgi_pass   unix:/var/run/php/php7.2-fpm.sock;
        include        fastcgi_params;
        fastcgi_param  SCRIPT_FILENAME  $request_filename;
    }
}