会话在后端工作正常，但是当我使用前端发送请求时它不起作用

Question

会话在后端工作正常，但当我使用前端发送请求时它不起作用

在控制器中：

public function captcha(){
    session_start();
    if (isset($_SESSION['captcha_image'])) {
        File::delete($_SESSION['captcha_image']);
        $temp = new Captcha();
        $temp->captcha();
        return response()->json(['url_image' => $_SESSION['captcha_image'],
                                'captcha' => $_SESSION['captcha']], Response::HTTP_OK);

    } else {
        $temp = new Captcha();
        $temp->captcha();
        return response()->json(['url_image' => $_SESSION['captcha_image'],
                                'captcha' => $_SESSION['captcha']], Response::HTTP_OK);
    }

}

创建会话：

$_SESSION['captcha'] = $word;
$_SESSION['captcha_image'] = "image".$time.".png";

Answer 1

你可以使用 Laravel 会话：

1. 通过Request 实例：

   use Illuminate\Http\Request;
   
   public function captcha(Request $request)
   {
       if ($request->session()->has('captcha_image')) {
           File::delete($request->session()->get('captcha_image'));
       }
   
       $temp = new Captcha();
       $temp->captcha();
   
       return response()->json([
           'url_image' => $request->session()->get('captcha_image'),
           'captcha' => $request->session()->get('captcha'),
       ], Response::HTTP_OK);
   }
   

2. 通过全局 session 辅助方法：

   public function captcha()
   {
       if (session('captcha_image')) {
           File::delete(session('captcha_image'));
       }
   
       $temp = new Captcha();
       $temp->captcha();
   
       return response()->json([
           'url_image' => session('captcha_image'),
           'captcha' => session('captcha'),
       ], Response::HTTP_OK);
   }
   

在会话中存储数据：

// Via a request instance...
$request->session()->put('key', 'value');

// Via the global helper...
session(['key' => 'value']);

请参阅Laravel docs 了解更多信息。