Код:
<?
require('error_inc.php');
require('config_inc.php');
$query = "SELECT id, c0 FROM user ORDER BY c0 DESC LIMIT 5";
$result = MYSQL_QUERY($query);
while ($row = mysql_fetch_assoc($result)) {
$id = $row['id'];
$c0 = $row['c0'];
echo $id.' - '.$c0.'<br />';
}