PHP using MVC

Question

I’m creating an application in PHP (without frameworks) using MVC, but I’m having a lot of doubts, because until today I only used Symfony to make PHP applications. I have doubts about the routing of urls and use of functions. Here is an example of how my project is currently:

Structure:

api-system

• pub

  • index php.

• src

  • Controller
    • Usercontroller.php
  • Model
    • User.php

• Templates

  • index.html.Twig

File Usercontroller.php

class UserController{
    public function insertUser(){
        //execução

        return json_encode($resultado);
    }

    public function delteUser(){
        // execução

        return json_encode($resultado);
    }

}

User.php file

class User {

    public $id;
    public $name;

function getId(){
     return $this->id;
}

My questions are: How do I routing to access "api.example/insertUser" (I will have another client application that will consume this api)

(I’m using Apache’s Virtualhost, directed to /var/www/system-api/pub )