if (0 != (int)$topic) {
            if (!\is_array($topic)) {
                $sql .= ' AND topicid=' . (int)$topic . ' AND (ihome=1 OR ihome=0)';
            } elseif (\count($topic) > 0) {
                $sql .= ' AND topicid IN (' . \implode(',', $topic) . ')';