Şuan aklıma gelebilen;
function altisar($start=0,$end=6){
$query = 'SELECT * FROM tablonuz ORDER BY id DESC LIMIT '.$start.','.$end.'';
$c = mysql_query($query);
while($saydir = mysql_fetch_array($c)){
echo '<a href="#">Lorem ipsum dolor</a>';
}
}
<div>
<?=altisar(0,6)?>
</div>
<div>
<?=altisar(6,12)?>
</div>
<div>
<?=altisar(12,18)?>
</div>