Codeigniter 将数据从控制器传递到视图 [英] Codeigniter passing data from controller to view

问题描述

根据这里我有以下控制器:

class User extends CI_Controller {
    public function Login()
    {
        //$data->RedirectUrl = $this->input->get_post('ReturnTo');
        $data = array(
               'title' => 'My Title',
               'heading' => 'My Heading',
               'message' => 'My Message'
          );
        $this->load->view('User_Login', $data);
    }

    //More...
}

在我的 User_Login.php 视图文件中，我这样做:

and in my User_Login.php view file I do this:

<?php print_r($data);?>

导致:

A PHP Error was encountered
Severity: Notice
Message: Undefined variable: data
Filename: views/User_Login.php
Line Number: 1

我是否需要加载任何特定的模块/帮助程序来填充 $data 变量?如果我 print_r($this)，我可以看到很多东西，但除了缓存中没有我的数据

Do I need to load any specific modules/helpers to get the $data variable populated? If I print_r($this), I can see a lot of stuff but none of my data except in caches

澄清一下，我知道在控制器和视图中调用相同的变量不会共享"它 - 它超出了范围但在我链接的示例中，它似乎暗示了 $data 变量是在视图范围内创建的.我只是碰巧在控制器中使用了相同的名称

To clarify, I know that calling the variable the same in the controller and view won't "share" it - it's out of scope but in the example I linked, it seems to imply a $data variable is created in the scope of the view. I simply happened to use the same name in the controller

推荐答案

啊，$data 数组的键被转换成变量:try var_dump($title);例如.

Ah, the $data array's keys are converted into variables: try var_dump($title); for example.

这是使用 extract 完成的.

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