Help to use a MySQL database with PHP

<?php
extract($_GET);
$con = mysql_connect("localhost","admon","labase");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

mysql_select_db("table_properities", $con);

$result = mysql_query("SELECT * FROM Sales
WHERE ID='$id'") or die (mysql_error());

$row = mysql_fetch_array ( $result );
echo $row['description']." - ".$row['bonus'];
?>

print_r($row);