NewDiskStorage::countIdsWithSameSyncDate

private function countIdsWithSameSyncDate(FixedArray $items, $syncDateVersion)
{
	$count = 0;
	foreach ($items->reverse() as $item)
	{
		if (
			!empty($item['version']) &&
			$item['version'] == $syncDateVersion
		)
		{
			$count++;
		}
	}

	return $count;
}