source/Application/Controller/ThankYouController.php
public function getCountryISO3()
    {
        $oOrder = $this->getOrder();
        if ($oOrder) {
            $oCountry = oxNew(\OxidEsales\Eshop\Application\Model\Country::class);
            $oCountry->load($oOrder->oxorder__oxbillcountryid->value);

            return $oCountry->oxcountry__oxisoalpha3->value;
        }
    }
public function getCountryISO3()
    {
        $oOrder = $this->getOrder();
        if ($oOrder) {
            $oCountry = oxNew(\OxidEsales\Eshop\Application\Model\Country::class);
            $oCountry->load($oOrder->oxorder__oxbillcountryid->value);

            return $oCountry->oxcountry__oxisoalpha3->value;
        }
    }
public function getCountryISO3 ( ) { $ oOrder = $ this -> getOrder ( ) ; if ( $ oOrder ) { $ oCountry = oxNew ( \ OxidEsales \ Eshop \ Application \ Model \ Country :: class ) ; $ oCountry -> load ( $ oOrder -> oxorder__oxbillcountryid -> value ) ; return $ oCountry -> oxcountry__oxisoalpha3 -> value ; } }
Template variable getter. Returns country ISO 3

@return string
Template variable getter . Returns country ISO 3