Nogle der kan Hjælpe mig med denne Kode det er til en Chat

<table cellspacing="0" cellpadding="0" width="100%">
<?
$select_top_c = mysql_query("SELECT username,credits FROM users ORDER BY credits DESC LIMIT 10");
while($row_top_c = mysql_fetch_array($select_credits)) {
print "<tr>
<td width=\"100%\"><a href=\"user.php?usrname=$row_top_c[username]\">$row_top_c[username]</a></td>
<td align=\"right\"><nobr>".floor($row_top_c[credits])." C</td>
</tr>
";
}
?>
</table>