Laravel私有变量在Controller中的两个方法之间共享 [英] Laravel private variable shared between two methods in Controller

问题描述

如何在Laravel Controller中使用私有变量，以及如何在两种方法之间共享该变量值. (将其设置为一个，然后将其设置为另一个).

How to use private variable in Laravel Controller, and share that variable value between two methods. (Set it in one use it in another).

推荐答案

您正在谈论一个单一的控制器，对吗?因此，我假设这是您的意思:

You're talking about one single controller, right? So I'll assume that this what you mean:

class ControllerController extends Controller {

    private $variable;

    public function __construct($whatever)
    {
        $this->variable = $whatever;
    }

    public function method1($newValue)
    {
        $this->variable = $newValue;
    }

    public function method2()
    {
        return $this->variable;
    }

}

如果您在同一请求中执行操作，则可以

If you are doing thing in the same request, you can

$this->method1('newvalue');

echo $this->method2();

它将打印newvalue.

如果您在两次请求之间执行此操作，则需要记住，您的应用程序是在请求重新启动后在新请求中结束的，因此您需要将其存储在某个地方，例如Session变量中:

If you are doing it between requests, you need to remember that your application ends after a request a restart in a new one, so you'll need to store it somewhere, like in a Session variable:

Session::put('variable', $newvalue);

然后

Session::get('variable');

或者您也可以使用方法中所需的值进行重定向:

Or you can redirect with the value you need to get back in your method:

Redirect::to('posts')->with('variable','this is a new value');

第二个

Session::get('variable');

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