CodeIgniter全局函数 [英] CodeIgniter global function

问题描述

我在哪里可以放置我的全局函数，如果用户登录，它会检查？

Where can I place my "global" function, which will check, if user is logged in?

因为我想做一些类似的事情：只有当函数 isLogged（）返回TRUE，并且我必须在一些视图中使用它时才浏览一些页面，这就是为什么它应该是一个全局函数我可以从任何地方访问。

Because I want to do something like: user is able to browse some pages only when the function isLogged() returns TRUE, and I'd have to use it in some views, that's why it should be a "global" function, which I can access from anywhere.

这是可能吗？或者有更好的解决方案吗？

Is that possible? Or there is any better solution for this?

推荐答案

你应该把它放入一个库，并自动加载库。当您需要在视图中使用logged_in标志时，从控制器传递它。示例：

You should probably put it into a Library, and autoload the library. When you need to use the "logged_in" flag in a view, pass it in from the controller. Example:

application / libraries / Auth.php p>

application/libraries/Auth.php

<?php defined('BASEPATH') OR exit('No direct script access allowed');

class Auth
{

    public function is_logged_in ()
    {
        // Change this to your actual "am I logged in?" logic
        return $_SESSION['logged_in'];
    }

}

---

$ b b

application / config / autoload.php

...
$autoload['libraries'] = array(
    ...
    'auth',
    ...
}

---

`application / controllers / welcome.php

---

`application/controllers/welcome.php

<?php ...

public function index ()
{
    $view_data = array
    (
        'logged_in' => $this->Auth->logged_in()
    );
    $this->load->view('my_view', $view_data);
}

---

application / views / my_view.php

<? echo $logged_in ? 'Welcome back!' : 'Go login!' ?>

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