title: PHP: When does the temporary uploaded files get deleted?
body: <p>I am running WAMP server. On file upload using PHP I see</p>
  
  <p><code>$_FILES[tmp_name] =&gt; string 'C:\wamp\tmp\phpD382.tmp' (length=23)</code></p>
  
  <p>I go to that folder and it's empty. I made sure my 'show hidden files' is on from my 'folders option' but I don't see it. Where is it exactly? </p>
  
  <p>Besides when does it get deleted? If I don't move that file? For an instance if I'm uploading a file and the file uploaded halfway and I decided to close that browser what happens to the file? When does the server know to delete that temp file?</p>