What is the best way to write a site in php that will use the REST API?

Question

PHP

Let's say there is a REST API open in public.
There is a task to make a site that will use the API method to get dynamic data. That is pure frontend.
Given that the language is php and the site will have high traffic, what is the best way to do it?
1. Use a framework? If so, which one, or not - to write your own application?
2. What template engines do you recommend?
3. Static caching?

Answer 1

1. yes
2. frameworks with their own go in the box.
3. natural

Answer 2

Lumen: https://lumen.laravel.com/

Answer 3

Phalcon and its Micro Application! Don't guess! The speed will be at its best, the convenience at its best, and you can figure it out in a few days slowly