CRestUtil::ParseBatchQuery

static function ParseBatchQuery($query, $arResult)
{
	$resultQueryParams = array();

	if($query)
	{
		$queryParams = array();
		parse_str($query, $queryParams);

		$queryParams = BitrixMainTextEncoding::convertEncoding($queryParams, 'utf-8', LANG_CHARSET);

		$resultQueryParams = self::processBatchStructure($queryParams, $arResult);
	}

	return $resultQueryParams;
}