PriceProvider::parsePriceTypeId

static function parsePriceTypeId(string $columnId): ?int
{
	$prefix = preg_quote(self::PREFIX_PRICE_COLUMN_ID);
	$re = "/^{$prefix}(d+)$/";

	if (preg_match($re, $columnId, $m))
	{
		return (int)$m[1];
	}

	return null;
}