zcju/app/Http/Controllers/Admin/CommonController.php

<?php
 namespace App\Http\Controllers\Admin;

 use App\Http\Controllers\Controller;
 use App\Model\Project;
 use Illuminate\Support\Facades\Crypt;
 use Illuminate\Support\Facades\View;
 use Illuminate\Support\Facades\Session;
 class CommonController extends Controller{

  public function __construct()
  {

   $user = session('user');
   $project = Project::where('display',1)->get();
    View::share('user',$user);
    View::share('project',$project);
  }
 }