Laravel私有变量在Controller中的两个方法之间共享

Question

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

Answer 1

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;
    }

}

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

$this->method1('newvalue');

echo $this->method2();

And it will print newvalue.

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);

and then

Session::get('variable');

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');

And in the second

Session::get('variable');