Laravel 5.3 file storages

Hi,

How can I upload multiple files in Laravel 5.3. If I try it with 1 image it works but multiple images are not uploaded.

This is my code:

 if($request->hasFile('attachment'))
 {
    foreach ($request->allFiles('attachments') as $file) {
        $file->store('users/' . $user->id . '/messages');
    }
 }