Mini render PHP

/**
 * class View
 */
class View
{
    /**
     * @var string $view
     */
    private $view;

    public function __construct($template, $data)
    {
        extract($data);
        ob_start();
        include($template)
        $this->view = ob_get_clean();
    }

    public public function __toString()
    {
        return $this->view;
    }
}

echo new View('views/index.php', ['saludo' => 'Hola mundo']);