chuck-php-mvc/Core/Controller.php

<?php
namespace Core;

abstract class Controller
{
    protected $data;
    protected $controller_name;
    protected $view_name;
    protected $template_dir;

    function assign($key, $value)
    {
        $this->data[$key] = $value;
    }

    function display($file = '')
    {
        $this->template_dir = Application::getInstance()->base_dir.'/Views';
        if (empty($file))
        {
            $file = strtolower($this->controller_name).'/'.$this->view_name.'.php';
        }
        $path = $this->template_dir.'/'.$file;
        extract($this->data);
        include $path;
    }
}