[Neighbor_]

How would this work with a more standard webpage. For example, Laravel (PHP) on the backend with a Relational Database like MySQL?

[pagnihotry]

AWS Lambda does not support PHP. You will need to spin up an EC2 instance for running PHP and another instance in RDS for MySQL. For development, you can spin up t2.micro on EC2 and RDS and pay $0 but pick another instance type when you go live to production.