Codeigniter：设置'全局变量' [英] Codeigniter: Set 'global variable'

问题描述

如果我想设置一个变量，我的整个控制器可以访问，我该怎么办？

If I want to set a variable that my whole controller can access, how do I do it?

现在，在每个函数中我设置

Right now, in every function I am setting

$id = $this->session->userdata('id');

我想从任何函数访问$ id，控制器。 ：）

I'd like to be able to access $id from any function w/o defining it for each controller. :)

如果有更好的方法，我就是耳朵！我是一个noob！

If there's a better way, I'm all ears! I'm a noob!

推荐答案

详细说明 Koo5的回应，你可以这样做：

To elaborate on Koo5's response, you'll want to do something like this:

class yourController extends Controller {

    // this is a property, accessible from any function in this class
    public $id = null;

    // this is the constructor (mentioned by Koo5)
    function __construct() {
        // this is how you reference $id within the class
        $this->id = $this->session->userdata('id');
    }

    function getID() {
        // returning the $id property
        return $this->id;
    }

}

有关详细信息，请参阅手册PHP 属性和构造函数。希望有所帮助！

See the manual for more information on PHP properties and constructors. Hope that helps!

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