File constructure when server receives from client

  protected '_name' => string 'iTools0925E.zip' (length=15)
  protected '_tmp' => string '/tmp/phpUDlMei' (length=14)
  protected '_size' => int 3489568
  protected '_type' => string 'application/zip' (length=15)
  protected '_real_type' => null
  protected '_error' => int 0
  protected '_key' => string 'zipFile' (length=7)
  protected '_extension' => string 'zip' (length=3)