如何在laravel 5.3中将查询字符串附加到url

Question

我正在使用laravel 5.3并且在postLogin方法中，我想将api_token作为查询字符串附加到url，如下所示：

HTTP：//本地主机/考试/学生/仪表板api_token = 4ZtxTu7fAwYpcPYRu46GWmVfncPO0i

我的LoginController.php是：

public function postStudentLogin(Request $request){ 
   $student = DB::table('students')->where('email', $request->get('email'))->first();   
   if(Hash::check( $request->get('password'),$student->password))
    {       
      Session::flash('login_message','You have been logged in successfully.');  
      return redirect()->route('dashboard',['api_token'=> $student->api_token]);    
    }
    else{   
       return redirect()->back()->withErrors('Incorrect username/password');   
      } 
   } 

和routes / web.php是：

Route::group(['prefix' => 'student', 'namespace' => 'Auth'], function(){
   Route::get('/','Student\LoginController@getStudentHome');    
   Route::get('/login/{page}',['uses' => 'Student\LoginController@getStudentLogin' ]);  
   Route::any('/dashboard',['uses' =>'Student\LoginController@postStudentLogin'])->name('dashboard');      
});

它将api_token附加到仪表板，但$ student总是在postStudentLogin（）方法中为空，即使dd（$ student）提供完整的学生详细信息。

请指导我错在哪里。

谢谢，

Dipti Sheth

Answer 1

必须有默认请求参数，

public function postStudentLogin(Request $request){         
   $retArr = $request->all();
   // try to dd here $retArr variable, you should get everything
 }

试一试，这应该有效。

编辑

要获取查询字符串，请尝试此操作，

Request::getQueryString();

是的，添加此项use Illuminate\\Http\\Request; 到文件顶部的命名空间。

休息，你应该进入$request->all() 。

Answer 2

//Declare new queries you want to append to string:
$newQueries = ['foo' => 'bar', 'popular'];


//Generate the URL with all the queries:
//Retrieve current query strings with new query variable appended.
$request->fullUrlWithQuery($newQueries);

Answer 3

对于您的代码，可以根据要求使用以下内容。 有关更多参考， 请访问https://laravel.com/docs/5.3/requests

 // Add top of your controller
use Illuminate\Http\Request;

public function postStudentLogin(Request $request){         
         // To get all data
      $inputs = $request->input();
         // To get specific value
      $api_token = $request->input('api_token');
       ....
       ...
}