我有兩個(gè)單獨(dú)的控制器，PostController用于將輸入值返回給刀片并將APIController數(shù)據(jù)從數(shù)據(jù)庫(kù)返回到刀片。我試過(guò)傳遞變量，SESSION但仍然沒(méi)有功能。請(qǐng)幫忙。索引.blade.php<form class="form-inline" action="{{ action('PostController@index') }}" method="GET">   <div class="form-group">      <label class="mb-2 mr-sm-2 col-form-label">Date : </label>         <input type="date" name="date" id="date" style="width:160px;" class="form-control mb-2 mr-sm-2" value="<?php if(isset($_GET['submit'])) echo $_GET['date']; else echo date('Y-m-d');?>">   </div>   <input type="submit" name="submit" class="btn btn-primary mb-2" value="Inquiry"></form>后控制器.php<?php   namespace App\Http\Controllers;   use Illuminate\Support\Facades\Input;   use Session;   class PostController extends Controller   {      public function index()      {              $getDate = Input::get('date'); //trying to pass this to APIController for query         $getCurrentDate = date('Y-m-d');         Session::put('getDate', $getDate); //for example $getDate = '2019-01-01'         return view('posts.index')->with('getCurrentDate', $getCurrentDate)->with('getDate', $getDate);      }   }接口控制器.php<?php       namespace App\Http\Controllers;   use Illuminate\Support\Facades\DB;   use Yajra\Datatables\Datatables;   use Session;   class APIController extends Controller   {      public function getQueries()      {         ini_set('memory_limit', '1024M');         ini_set('max_execution_time', 300);         $getInputDate = Session::get('getDate'); //don't get anything here         //dd($getInputDate); //have tried dumping, it returns null         $getCurrentDate = date('Y-m-d');         if($getInputDate == NULL)         {            $query = DB::select(DB::raw("SELECT * FROM TABLE WHERE date = '$getCurrentDate'");            return Datatables::of($query)->make(true);          }         else          {            $query = DB::select(DB::raw("SELECT * FROM TABLE WHERE date = '$getInputDate'");            return Datatables::of($query)->make(true);         }      }