<?php

$uri = parse_url($_SERVER['REQUEST_URI'])['path'];

$routes = [
    '/'      => 'routes/index.php',
];

function routeToController($uri, $routes)
{
    if (array_key_exists($uri, $routes)) {
        require $routes[$uri];
    } else {
        abort();
    }
}

function abort($code = 404)
{
    http_response_code($code);

    require "routes/404.php";

    die(0);
}

routeToController($uri, $routes);