LogComment::processUserList

static function processUserList(array $userIdList = [])
{
	$userIdList = array_map(
		static function ($userId) {
			return (int)$userId;
		},
		$userIdList
	);
	$userIdList = array_filter(
		$userIdList,
		static function ($userId) {
			return ($userId > 0);
		}
	);
	return array_unique($userIdList);
}