if ($num_updated > 0 && $field == "unread") {
$sth = $this->pdo->query("SELECT DISTINCT feed_id FROM ttrss_user_entries
- WHERE ref_id IN ($article_ids)");
+ WHERE ref_id IN ($article_qmarks)");
+ $sth->execute($article_ids);
while ($line = $sth->fetch()) {
CCache::update($line["feed_id"], $_SESSION["uid"]);