php CodeIgniter 将多个数组从控制器传递到视图
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CodeIgniter passing multiple arrays from controller to view
提问by Michael F
Possible Duplicate:
PHP: “Notice: Undefined variable” and “Notice: Undefined index”
I'm trying to pass both session data and a db query to a view in Codeigniter. I get an error in my view file that says: 'Message: Undefined variable: data'
我正在尝试将会话数据和 db 查询传递给 Codeigniter 中的视图。我在我的视图文件中收到一条错误消息：“消息：未定义变量：数据”
The problem lies with in the $idea variable. The variables register an undefined error.
问题在于 $idea 变量。变量注册一个未定义的错误。
Controller:
控制器：
public function members() {
if($this->session->userdata('is_logged_in')){
$session = $this->session->all_userdata();
$facebook_id = $data['id'];
$this->load->model('idea');
$idea = $this->idea->get_idea($facebook_id);
//merge the two arrays to get data variable
$data = $session + $idea;
$this->load->view('members', $data);
} else {
redirect('main/login');
}
}
Model:
模型：
public function get_idea($facebook_id) {
$data = array(
'id' => '',
'idea' => '',
'facebook_id' => $facebook_id
);
$query = $this->db->get('idea', $facebook_id);
return $query->result_array();
}
Here are some of the resources I've used:
-Creating foreach loops using Code Igniter controller and view
-codeigniter: pass array from controller to view
-http://blog.mattheufarmer.com/2010/building-a-website-in-codeigniter-part-ii-getting-data-and-using-it/
以下是我使用过的一些资源：
-使用 Code Igniter 控制器和视图创建 foreach 循环
- codeigniter：将数组从控制器传递到视图
- http://blog.mattheufarmer.com/2010/building-a-website-in -codeigniter-part-ii-getting-data-and-using-it/
Thank you for the help!
感谢您的帮助！
回答by Josh Brody
$data = $session + $idea;
No. Just no. That's not how you merge the arrays.
不就是不。这不是你合并数组的方式。
A cleaner, more thoughtful approach to do what you want to do:
一种更干净、更周到的方法来做你想做的事：
$data = array( $session, $idea );
Otherwise,
除此以外，
$data = array_merge($session, $idea);
Edit:
编辑：
You should read this http://ellislab.com/codeigniter/user-guide/general/views.html
你应该阅读这个http://ellislab.com/codeigniter/user-guide/general/views.html
Anyway, unless you're doing something completely stupid, you should be able to do this:
无论如何，除非你在做一些完全愚蠢的事情，否则你应该能够做到这一点：
$data = array( 'sesssion' => $sesssion, 'idea' => $idea );
And pass that through to your view. And then on your view, you can call the session with $session, and idea with $idea. To illustrate:
并将其传递给您的视图。然后在你看来，你可以用 $session 调用会话，用 $idea 调用idea。为了显示：
$data = array('name' => 'josh', 'sex' => 'often');
$this->load->view('welcome', $data);
And then on my view:
然后在我看来：
<? echo "$name has sex $sex"; // returns josh has sex often ?>
In the views, the keys become variables and the values are accessed by those variables (which were keys in $data). You don't call $data, you call the key.
在视图中，键成为变量，值由这些变量（$data 中的键）访问。您不调用 $data，而是调用密钥。
$data = array('key' => 'value');
Let me know if you have any other issues. :)
如果您有任何其他问题，请告诉我。:)
回答by Suresh Kamrushi
You can do like this-
你可以这样做-
public function members() {
if($this->session->userdata('is_logged_in')){
$data['session'] = $this->session->all_userdata();
$facebook_id = $data['id'];
$this->load->model('idea');
$data['idea'] = $this->idea->get_idea($facebook_id);
$this->load->view('members', $data);
} else {
redirect('main/login');
}
}
