在CodeIgniter中将变量从控制器传递到视图 [英] Passing variable from controller to view in CodeIgniter

问题描述

我刚接触Codeigniter和OOP PHP。

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 在控制器中它做它应该做什么。如果I echo $ planet 在视图中我得到一个未定义的变量错误。 $ planet 不是一个数组。为什么不将 $ planet 变量传递给视图？

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的基本问题，我很尴尬，我不知道我做错了什么。

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

编辑：好吧，经过更多的fiddling，我得到它的工作。

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

您必须传递一个数组到风景。 CodeIgniter自动使 $ planet 可用。

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);

您可以使用 $ planet

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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