BIM/public/index.php

<?php
require_once '../vendor/autoload.php';

require_once __DIR__ . '/../src/controllers/user.php';

function get_view($view_name) {
    try {
        $loader = new Twig\Loader\FilesystemLoader('../templates');
        $twig = new Twig\Environment($loader);
        $twig->addGlobal('session', $_SESSION);
    
        return $twig->load($view_name . '.html.twig');

    } catch (Exception $e) {
        die ('ERROR: ' . $e->getMessage());
    }
}

$dispatcher = FastRoute\simpleDispatcher(function(FastRoute\RouteCollector $r) {
    $r->addRoute('GET', '/', 'signin');
    $r->addRoute('POST', '/auth', 'auth');
    $r->addRoute('GET', '/home', 'home');
    $r->addRoute('GET', '/changepassword', 'form_password');
    $r->addRoute('POST', '/changepassword', 'change_password');
    $r->addRoute('GET', '/signout', 'signout');
});

// Fetch method and URI from somewhere
$httpMethod = $_SERVER['REQUEST_METHOD'];
$uri = $_SERVER['REQUEST_URI'];

// Strip query string (?foo=bar) and decode URI
if (false !== $pos = strpos($uri, '?')) {
    $uri = substr($uri, 0, $pos);
}
$uri = rawurldecode($uri);

$routeInfo = $dispatcher->dispatch($httpMethod, $uri);
switch ($routeInfo[0]) {
    case FastRoute\Dispatcher::NOT_FOUND:
        // ... 404 Not Found
        break;
    case FastRoute\Dispatcher::METHOD_NOT_ALLOWED:
        $allowedMethods = $routeInfo[1];
        // ... 405 Method Not Allowed
        break;
    case FastRoute\Dispatcher::FOUND:
        $handler = $routeInfo[1];
        $handler();
        break;
}