İlla php ile yapacaksan arkadaşın verdiği kodları şu şekilde degiştirerek kullanabilirsin:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
#ana {
width: 600px;
}
#listele {
float: left;
width: 120px;
}
</style>
</head>
<body>
<div id="ana">
<?
while($cli = mysql_fetch_array($cli_query)) {
$Price = number_format ( $cli [ 'propertyprice' ], 0, ".", "," );
$x=$x+1;

if ($x % $columns == 0) { ?>

<div id="listele">1</div>
<? } ?>
</div>
</body>
</html>