如何从没有Auth的数据库中获取userId :(）？

Question

I want to get current userId from database without Auth::() and I don't want to get it from route like '/xxx/{id}'

Is there any other way to get the userId without Auth::()?

eg. $userId = User::where('id', $id)->pluck('id');

Here is my auth::controller declaration :

public function getLogout(Request $request)
    {

        $redis = \Redis::connection();
        $user = $request->user();

    if ($user) {
         $userID = $user->id;
      }
 //       $userId = User::where('id', $id)->pluck('id'); 
        dd($userID);
 //       $userId=Auth::user()->id;
        $userSessions = $redis->smembers('users:sessions:' . $userId);
        $currentSession = Session::getId();
        foreach ($userSessions as $sessionId) {
             if ($currentSession == $sessionId) {
          continue; 

                }
                 $redis->srem('users:sessions:' . $userId, $sessionId);
                $redis->del('laravel:' . $sessionId);

            }
        Auth::logout();
        return redirect()->route('main');
   }

Answer 1

Directly from the docs:

Alternatively, once a user is authenticated, you may access the authenticated user via an Illuminate\Http\Request instance. Remember, type-hinted classes will automatically be injected into your controller methods:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class ProfileController extends Controller
{
    /**
     * Update the user's profile.
     *
     * @param  Request  $request
     * @return Response
     */
    public function updateProfile(Request $request)
    {
        if ($request->user()) {
            // $request->user() returns an instance of the authenticated user...
        }
    }
}

So, it would be something like this to get the ID:

$user = $request->user();

if ($user) {
    $userID = $user->id;
}