title: laravel request file return null (enctype added)
body: <p>when i upload anything it returns null but if i try to return $_FILES in my controller it returns my uploaded files, i had added enctype="multipart/form-data" but still no luck</p>
  
  <p>this is my form</p>
  
  <pre><code>&lt;form action="{{url('add_attachments')}}" method="post" enctype="multipart/form-data"&gt;
      @csrf @method('put')
      &lt;div class="row"&gt;
          &lt;div class="col-12"&gt;
              &lt;label class="small"&gt;Tambahkan lampiran&lt;/label&gt;
              &lt;div class="form-group mb-1 upload"&gt;
                  &lt;input type="file" name="lampiran[]" multiple accept="image/jpeg,image/gif,image/png,application/pdf" /&gt;
              &lt;/div&gt;
          &lt;/div&gt;
      &lt;/div&gt;
      &lt;div class="row"&gt;
          &lt;div class="col"&gt;
              &lt;button type="submit"&gt;Upload&lt;/button&gt;
          &lt;/div&gt;
      &lt;/div&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>This is my controller</p>
  
  <pre><code>&lt;?php
  
  namespace App\Http\Controllers;
  
  use Illuminate\Http\Request;
  
      class ProposalController extends Controller
      {
          public function add_attachment(Request $request, $id)
          {
              return $request-&gt;file('lampiran'); //return null
              return $_FILES; //return {"lampiran":{"name":["7680cf333da548d4213fd5f574b66ffbdccba917.jpg"],"type":["image\/jpeg"],"tmp_name":["\/tmp\/phpBIcJYs"],"error":[0],"size":[138198]}}
          }
      }
  </code></pre>