PHP MVC：如何使用从外部类存储在View里面的私有Model对象

Question

I am new in learning MVC, I want to use private Model object stored inside View from outside class, like below example:

class Model{
 private $data
}

class View{
private $model
public function __construct($model) {
        $this->model = $model; 

    }
}

// outside
$m = New Model;
$v =  New View($m);
echo $v->m->data; // How to get it

i know setter/getter method, but it can can much more bigger MVC code.please help.

Answer 1

You would probably want to access the view from within the controller like this:

class Controller
{
    public function __construct($model, $view)
    {
        $this->model = $model;
        $this->view = $view;
    }

    public function show()
    {
        return $this->view->render($this->model->getData());
    }
}

$controller = new Controller();
$controller->show();

You want the controller to receive all of the dependencies that it has ideally in the constructor. That way it doesn't need to search for them. This is inversion of control or DI (dependency injection).