Codeigniter - 我应该在视图中访问会话数据吗？
我是否应该从标题中为我的标题获取一些数据，该标题需要显示当前登录用户的一些详细信息。或者，在每个控制器中，加载用户数据，然后将其发送到相应的视图？似乎我应该从控制器中执行此操作，但将其放在标头中需要更少的代码。
Should I grab some data from a session variable for my header from the header which needs to display a few details for the user currently logged in. Or, in each controller, load user data then send it to the corresponding view? Seems like I should do it from the controllers but having it in header requires less code.
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你应该吗？为了可维护性和尊重 MVC 模式，我会说在控制器中执行此操作，我不认为一行代码会成为问题，您可以像这样获取所有内容：
然后将其传递给视图，并使用 $userdata['whatever'] 在视图中获取内容，这与从标头获取内容的代码量相同。
该函数位于此处
编辑 - 2015 年 11 月 3 日
版本 3.0
$this->session->all_userdata();已被折旧。相反，直接访问$_SESSION对象是首选方法，但是不带参数的$this->session->userdata();可以与旧应用程序一起使用。或
有关 userdata() 的文档：
Should you? For the sake of maintainability and honoring the MVC pattern, I would say do it in the controller, I don't think one line of code is going to be an issue, you can get it all like this:
Then pass that to the view, and get the stuff out in the view with $userdata['whatever'] which is the same amount of code as getting it from the header anyway.
The function is located here
Edit - 03 November 2015
As of version 3.0
$this->session->all_userdata();has been depreciated. Instead directly accessing the$_SESSIONobject directly is the prefered method, however$this->session->userdata();with no parameters could be used with older applications.or
Documentation on userdata():