将变量从控制器传递到 CodeIgniter 中的视图

问题描述

我是 Codeigniter 和 OOP PHP 的新手.

I'm new to Codeigniter and OOP PHP.

控制器:

public function index(){
    $this->load->model('main_model');
    $planet = $this->main_model->solar();
    $this->load->view('main_view', $planet);    
    }

如果 echo $planet 在控制器中，它会做它应该做的事情.如果我在视图中 echo $planet 得到一个未定义的变量错误.$planet 不是数组.为什么 $planet 变量没有传递给视图?

If echo $planet in the controller it does what it's supposed to do. If I echo $planet in the view I get an undefined variable error. $planet is not an array. Why isn't the $planet variable being passed to the view?

我知道这是一个简单而基本的问题，我很尴尬，因为我无法弄清楚自己做错了什么.

I know this is a simple and basic question and I'm embarrassed that I can't figure out what I'm doing wrong.

好的，经过更多的摆弄，我开始工作了.变量格式化为数组后，只能从控制器传递到视图吗?

Okay, after more fiddling around, I got it to work. Can variables only be passed from Controller to View when they're formatted as an array?

推荐答案

您必须将数组传递给视图.CodeIgniter 会自动为您提供 $planet.

You have to pass an array to the view. CodeIgniter automatically makes $planet available to you.

$data = array('planet' => $planet);
$this->load->view('main_view', $data);

有了这个，您可以在视图中使用 $planet.

With this you can use $planet in your view.

例如，如果您执行以下操作:

E.g., if you do the following:

$data = array('foo' => 'Hello', 'bar' => 'world');
$this->load->view('main_view', $data);

$foo 和 $bar 将在您的视图中可用.数组中的键值对会自动转换为视图中的变量.

$foo and $bar will be available in your view. The key-value pairs in the array are automatically converted to variables in the view.

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