Vous pouvez faire comme ceci :
$sql = SELECT * FROM tbl_news ORDER BY date DESC LIMIT :start, :rows";
$q = $db->prepare($sql);
$q->bindParam(':start', $start, PDO::PARAM_INT);
$q->bindParam(':rows',$rows, PDO::PARAM_INT);
Vous pouvez faire comme ceci :
$sql = SELECT * FROM tbl_news ORDER BY date DESC LIMIT :start, :rows";
$q = $db->prepare($sql);
$q->bindParam(':start', $start, PDO::PARAM_INT);
$q->bindParam(':rows',$rows, PDO::PARAM_INT);