Script not working

<?php

error_reporting(E_ALL ^ E_NOTICE);

?>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Untitled Document</title>
</head>

<body>

<?php

$db = mysql_connect("localhost", "root", "");
mysql_select_db("tutorials", $db);

$query = "SELECT url, id FROM tutorials WHERE status = 'no'";

$result = @mysql_query($query);

$num = mysql_num_rows($result);

if($num > 0)
{
  echo '<table>';

  while($row = mysql_fetch_array($result))
  {
    $id = $row[1];
    echo "<tr>
    <td></td>
    <td>$row[1]</td>
    <form action=edit.php method=post>
    <td><input type=hidden value=$row[1] name=ID> </td>
    <td>
    <select name=action>
      <option value=Delete>Delete</option>
      <option value=Approve>Approve</option>
    </select>
    <input type=submit value=Submit name=submit></td>
    </form>
    </tr>";
  }
  echo '</table>';
}
else
{
  echo "The query didnt find any results.";
}

if(isset($_POST['submit']) && $_POST['submit'] != '')
{
  //never trust user input ;)
  //even setting values yourself, select, etc..it can be injected
  $action = trim(strip_tags($_POST['action']));
  $id2 = intval($_POST['ID']);
  
  if(!empty($id) && !empty($action))
  {
    if($action == 'Delete')
    {
      $query2 = "DELETE FROM tutorials WHERE id='".$id2."' LIMIT 1";
      $result2 = @mysql_query($query2);
    }
    else
    {
      $query3 = "UPDATE tutorials SET status='yes' WHERE id='".$id2."' LIMIT 1";
      $result3 = @mysql_query($query3);
    }
  }
  else
  {
    //hmm, that shouldn't happen
  }
}
?>

</body>
</html>

echo '<meta http-equiv="Refresh" content="0; url=WEBSITE.php">';