Unable to create Request object in laravel 5.6 controller - php

Question

Controller name 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);
}
}
Route:
Route::get('createSession', 'MyController#createSession');
Route::get('viewSession-1', 'MyController#viewSession_v1');
Route::get('viewSession-2', 'MyController#viewSession_v2');
Now when I call "createSession" it will create new session and when i call either "viewSession-1" or "viewSession-2" it will display session value but I want to remove Request $request from viewSession_v2() so I did following code:
public function viewSession_v2(){
$request = new \Illuminate\Http\Request();
$data = $request->session()->get('key');
print_r($data);
}
Now when I call "viewSession-2" it will give me following error
Please anyone can tell me how can I create request object in method/function? and why it gives me an error here?

Answer 1

You always have access to the request() and session() helpers:
public function viewSession_v2(){
$data = request()->session()->get('key');
print_r($data);
}
or
public function viewSession_v2(){
$data = session()->get('key');
print_r($data);
}

Answer 2

As we know Laravel provides web middleware concepts. I think you should use to remove the session request.
Route::group(['middleware' => ['web']], function () {
// your routes here
});
More Info
Or you can put this condition as:
public function viewSession_v2(Request $request){
if($request->hasSession()) {
$data = $request->session()->get('key');
print_r($data);
}
}