please help me debug this

[JackOfBlades]

$headline = $POST['headline'];
$newsBody = $POST['newsbody'];
$schoolID = $_COOKIE['status'];

$query = "INSERT INTO bulletinBoard
          (bulletID,schoolID,bulletTitle,bulletBody)
          VALUES ('','$schoolID','$headline','$newsBody')";

if($_POST['headline'] != NULL && $_POST['newsbody'] != NULL)
{	
  $result = mysql_query($query) or die(mysql_error());
  echo("News Posted");
}

$identifier = $_GET['id'];

if($_GET['id'] != NULL)
 {
     $query2 = "SELECT *
                FROM bulletinBoard
			    WHERE bulletID = '$identifier'";


        $result2 = mysql_query($query2) or die(mysql_error());
        $data = mysql_fetch_array($result2)or die(mysql_error());

}

?>

what's wrong with the code above? when i post a message it would store the values in the database as expected but im having problems if after i submit the values and i press refresh it would store again the same value in the database on again and again every time i press the refresh button without leaving on another page... im still starting out with php im still having difficulties going around it

[frost110]

After the submit do a redirect to a "Success" page with the header() function. What is happening is the $_POST data is still there, if you redirect it that clears out the post data.

--FrosT