title: Use php to zip large files
body: <p>I have a php form that has a bunch of checkboxes that all contain links to files.  Once a user clicks on which checkboxes (files) they want, it then zips up the files and forces a download.  </p>
  
  <p>I got a simple php zip force download to work, but when one of the files is huge or if someone lets say selects the whole list to zip up and download, my server errors out.</p>
  
  <p>I understand that I can increase the server size, but are there any other ways?</p>