title: Multiple file upload field in custom module using drupal 7 Form API
body: <p>I'm searching for a way to add a field in a custom form that will allow me to upload a list of files like this one : <img src="https://i.stack.imgur.com/iII5q.png" alt="Like this one"> which is a screenshot of a File field of the file module.</p>
  
  <p>I tried this : <a href="http://ygerasimov.com/d7-zip-archive-custom-file-multiple-upload" rel="nofollow noreferrer">http://ygerasimov.com/d7-zip-archive-custom-file-multiple-upload</a>
  which uses ajax and custom code. My files are saved in DB but not displayed when I reload the page... I tried to make it work but with no luck.</p>
  
  <p>I really hope that someone will be able to help me.
  Thanks in advance,
  Hervé</p>