BasketBuilderWithDistributedQuantityControl::getMaxNewIndex

private function getMaxNewIndex($productList)
{
	$max = 0;
	foreach ($productList as $index => $product)
	{
		if (mb_strpos($index, 'n') !== false)
		{
			$number = mb_substr($index, 0, 1);
			if ($number > $max)
			{
				$max = $number;
			}
		}
	}

	return $max;
}