* @param array $ids
* @return array contact ids
*/
- private static function getContactsToUpdate(array $condition, int $limit, array $ids = [])
+ private static function getContactsToUpdate(array $condition, int $limit, array $ids = []): array
{
$contacts = DBA::select('contact', ['id'], $condition, ['limit' => $limit]);
while ($contact = DBA::fetch($contacts)) {