<?
if ($_GET['banla'])
mysql_query("UPDATE auth SET yetki=2 WHERE a_id='".$_GET['banla']."'");
if ($_GET['banac'])
mysql_query("UPDATE auth SET yetki=1 WHERE a_id='".$_GET['banac']."'");
?>

<table width="400" cellspacing="0" cellpadding="2">
<?
$sql=mysql_query("SELECT a_id, user, yetki FROM auth ORDER BY user ASC");
while($data=mysql_fetch_array($sql)) {
?>
<tr><td width="60%"><?=$data['user']?></td><td><? if ($data['yetki'] != 2) { ?><a href="banla.php?banla=<?=$data['a_id']?>">Banla</a><? } else { ?><a href="banla.php?banac=<?=$data['a_id']?>">Banı Kaldır</a><? } ?></td></tr>
<? } ?>
</table>