<?

$page = $_GET[page];
if (!$page) $page = 1;

if (!$_SESSION[user_s_member_code]){
$sql = "select * from s_short_url where s_member_code = 1 ORDER BY s_num DESC";
}else{
$sql = "select * from s_short_url where s_member_code = ".$_SESSION[user_s_member_code]." ORDER BY s_num DESC";
}

$result = mysql_query($sql, $connect);
$total_record = mysql_num_rows($result);

$scale = $common_page_rows;
if ($total_record % $scale == 0){ //오류
$total_page = floor($total_record/$scale);
}else{
$total_page = floor($total_record/$scale) + 1;
}

$start = ($page - 1) * $scale;
$number = $total_record - $start;

====================================================================

하단오류

$start_page = (floor(($page-1)/$interval))*$interval + 1;//오류

설정에는 이상이 없는듯하고요 sql에서도 이상없는데 오류가 납니다.
왜그럴까요?