Laravel 私有变量在 Controller 中的两个方法之间共享

2021-12-23 00:00:00 methods share php laravel laravel-4

如何在 Laravel Controller 中使用私有变量，并在两个方法之间共享该变量值.(设置在一个使用它在另一个).

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

您说的是单个控制器，对吗?所以我假设这就是你的意思:

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;
    }

}

如果你在同一个请求中做事情，你可以

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

$this->method1('newvalue');

echo $this->method2();

它会打印newvalue.

如果您在请求之间执行此操作，您需要记住您的应用程序在请求重新启动后结束，因此您需要将其存储在某处，例如在 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');

或者您可以使用返回方法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');

然后在第二个

Session::get('variable');

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