Basic MVC patten doen不起作用

Question

我运行了以下代码，但什么都没发生

<?php
class Model
{
    public $string;
    public function __construct(){
        $this->string = 'MVC + PHP = Awesome, click here';
    }
}
class Controller
{
    private $model;
    public function __construct($model){
        $this->model = $model;
    }
    public function clicked() {
        $this->model->string = 'Updated Data, thanks to MVC and PHP!';
    }
}
class View
{
    private $model;
    private $controller;
    public function __construct($controller,$model) {
        $this->controller = $controller;
        $this->model = $model;
    }
    public function output() {
        return '<p><a href="index.php?action=clicked"' . $this->model->string . "</a></p>";
    }
}

$model = new Model();
$controller = new Controller($model);
$view = new View($controller, $model);

if (isset($_GET['action']) && !empty($_GET['action'])) {
    $controller->{$_GET['action']}();
}
echo $view->output();
?> 

我做错了什么？

Answer 1

您在这一行中有一个拼写错误。。<a>标记未关闭，这就是您无法看到文本的原因。

固定代码

 public function output() {
        return '<p><a href="index.php?action=clicked">' . $this->model->string . "</a></p>";
    }