update

app/Models/CourseSign.php

@@ -347,6 +347,7 @@ class CourseSign extends SoftDeletesModel
                 $query->orWhere('company_name', 'like', '%' . $item . '%');
             }
         })->get();
+        dd($company->pluck('company_name')->toArray());
         $list = User::whereIn('id', $courseSignByType->pluck('user_id'))
             ->whereIn('company_id', $company->pluck('id'))
             ->get();