$reason= $_GET['reason'];
$option= $_GET['option'];
$for= $_GET['category'];
$approved= $_GET['approved'];
$before= $_GET['before'];
$username= $_SESSION ["username"];
     $myquery="INSERT INTO request (`serial number`, `request date`, `request for category`, `request`, `reason`, `approved by`, `username`) VALUES  ('',NOW(),'$for','$option','$reason',$approved','$username')";
     $query = mysql_query($myquery);

     if ( ! $query ) {
                     echo mysql_error();
                     die;
  }