Controller 名称MyController

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class MyController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index(){
        //
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create(){
        //
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request){
        //
        $request->session()->put('key', '123');
        $data = $request->session()->get('key');
        print_r($data);
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id){
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id){
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id){
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id){
        //
    }
    public function contact(){
        return view('contact');
    }

    public function createSession(Request $request){
        //
        $request->session()->put('key', '123');
        $data = $request->session()->get('key');
        print_r($data);
    }
    public function viewSession_v1(Request $request){
        $data = $request->session()->get('key');
        print_r($data);
    }
    public function viewSession_v2(Request $request){
        $data = $request->session()->get('key');
        print_r($data);
    }
}

路线:

Route::get('createSession', 'MyController@createSession');
Route::get('viewSession-1', 'MyController@viewSession_v1');
Route::get('viewSession-2', 'MyController@viewSession_v2');

现在，当我调用 "createSession" 时，它将创建新 session ，当我调用 "viewSession-1" 或 "viewSession-2" 它将显示 session 值，但我想从 viewSession_v2() 中删除 Request $request 所以我做了以下代码:

public function viewSession_v2(){
        $request = new \Illuminate\Http\Request();
        $data = $request->session()->get('key');
        print_r($data);
    }

现在，当我调用 "viewSession-2" 时，会出现以下错误

谁能告诉我如何在 method/function 中创建请求对象？ 以及为什么这里会出现错误？

最佳答案

您始终可以访问 request() 和 session() 助手:

public function viewSession_v2(){
      $data = request()->session()->get('key');
      print_r($data);
}

或

public function viewSession_v2(){
      $data = session()->get('key');
      print_r($data);
}

关于php - 无法在 Laravel 5.6 Controller 中创建请求对象，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53370329/