title: Cannot display content of $_FILES
body: <p>Have a look at the following code:</p>
  
  <pre><code>&lt;?php
  
  if (isset($_POST['email']))
  {
      $expertmail=trim($_POST['email']);
      echo $expertmail;
      $expertfile=$_FILES['upfile']['tmp_name'];
      echo $expertfile;
  }
      ?&gt;
  
  &lt;form action="test.php" method="post" name="users" id="users" &gt;              
     &lt;input name="upfile"  id="upfile" type="file" /&gt;            
     &lt;input name="email"  id="email" type="text" /&gt;
     &lt;input type="submit" name="submit_button" id="submit_button" value="ΑΠΟΣΤΟΛΗ" /&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>Why 'echo $expertfile'  does not display anything?
  Thank you</p>