$dml = $db->prepare("INSERT INTO bookmark (accountId, category, url, hash, title, created) VALUES (:account_id, :category, :url, MD5(:url), :title, NOW());");
$dml->bindParam(':account_id', $_SESSION['accountId']);
$dml->bindParam(':category', $_POST['category']);
$dml->bindParam(':url', $_POST['url']);
$dml->bindParam(':title', $_POST['title']);
$dml->execute();