title: Destroy files when session will destroy in php
body: <p>is it possible to remove files from the folder when session will destroy. am doing that when a user come into the site and he can upload files(images, or textfiles), etc.. with out login into the site. and the files 'll store  into my project's folder. now i need to do if the user quits from browser with out login i need to delete all the files what he upload in to project folder. how to do this ?</p>
  
  <p>Thanks in advance.</p>