require_once("database\adapters\PDO\Database.bootstrap.php");
class App {
    protected $_controller = 'Welcome';
    protected $_method = 'index';
    protected $_params = [];
    protected $_model = 'Welcome';

    public function __construct(){
    $url = $this->parseURL();
    //This works because I put the rewrite rules in IIS;
    //Our RewriteRule in IIS (or Apache) is ^(.+)$  This is any character saved to a variable.
    //The new location is index.php?url=$1 [QSA, L].  This will look a little different after you import it into IIS.

    if (file_exists('app\controllers\' . $url[0] . '.controller.php')){
        $this->_controller = $url[0];
        $this->_model = $url[0];
        unset($url[0]);  //Unset removes that element from the array;
        //var_dump($url);
    }

    //Get the controller and model.  All done by convention over configuration;
    require_once 'app\controllers\' . $this->_controller . '.controller.php';
    require_once 'app\models\Parent.model.php';

    //get a new Database object from the bootstrap;
    $_DB = new DatabaseBootstrap();

    $this->_controller = $this->_controller . "Controller";

    $this->_model = new ParentModel($_DB->getAdapter());
    $this->_controller = new $this->_controller($this->_model);

    //This checks to see if our method from the url exists;
    //Your querystring will look like this - http://server/virtualdirectory/controller/action/variables1/variable2.....

    if(isset($url[1])){
        if(method_exists($this->_controller,$url[1])){
            $this->_method = $url[1];
            unset($url[1]);
        }
    }

    $this->_params = $url ? array_values($url) : [];

    //This calls your controller and your method and sends over your array of parameters
    call_user_func_array([$this->_controller, $this->_method],$this->_params)
}

public function parseURL(){
    if(isset($_GET['url'])){
        return $url = explode('/',filter_var(rtrim($_GET['url'],'/'),FILTER_SANITIZE_URL));
        }
    }