index.php

<?php
    session_start();
    ini_set('display_errors', 1);
    ini_set('display_startup_errors', 1);
    error_reporting(E_ALL);

    $url = isset($_SERVER['PATH_INFO']) ? explode('/', ltrim($_SERVER['PATH_INFO'],'/')) : '/';

    //set up header
    require_once __DIR__.'/Views/header_view.php';
    $headerView = New HeaderView();
    
    if ($url == '/')
    {

        // This is the home page
        // Initiate the home controller
        // and render the home view
        require_once __DIR__.'/Models/index_model.php';
        require_once __DIR__.'/Controllers/index_controller.php';
        require_once __DIR__.'/Views/index_view.php';

        $indexModel = New IndexModel();
        $indexController = New IndexController($indexModel);
        $indexView = New IndexView($indexController, $indexModel);

    }else{


        // This is not home page
        // Initiate the appropriate controller
        // and render the required view

        //The first element should be a controller
        $requestedController = $url[0]; 

        // If a second part is added in the URI, 
        // it should be a method
        $requestedAction = isset($url[1])? $url[1] :'';

        // The remain parts are considered as 
        // arguments of the method
        $requestedParams = array_slice($url, 2); 

        // Check if controller exists. NB: 
        // You have to do that for the model and the view too
        $ctrlPath = __DIR__.'/Controllers/'.$requestedController.'_controller.php';



        if (file_exists($ctrlPath))
        {

            require_once __DIR__.'/Models/'.$requestedController.'_model.php';
            require_once __DIR__.'/Controllers/'.$requestedController.'_controller.php';
            require_once __DIR__.'/Views/'.$requestedController.'_view.php';

            $modelName      = ucfirst($requestedController).'Model';
            $controllerName = ucfirst($requestedController).'Controller';
            $viewName       = ucfirst($requestedController).'View';

            $controllerObj  = new $controllerName( new $modelName );
            $viewObj        = new $viewName( $controllerObj, new $modelName );

        }else{

            header('HTTP/1.1 404 Not Found');
            die('404 - The file - '.$ctrlPath.' - not found');
            //require the 404 controller and initiate it
            //Display its view
        }
    }

    
//set up footer
require_once __DIR__.'/Views/footer_view.php';
$footerView = New FooterView();