Hi there @pujeremy27,

What you could do is use Nginx as a reverse proxy for your Node application and also use PHP FPM with Nginx for your PHP application.

What you could do is follow the steps here on how to setup Nginx with PHP-FPM:

https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-ubuntu-18-04

And also you can follow this article on how to prepare your Node JS for production with Nginx:

https://www.digitalocean.com/community/tutorials/how-to-set-up-a-node-js-application-for-production-on-ubuntu-16-04

Hope that this helps!
Regards,
Bobby