9011099 EUR order label ALL 610 fr_FR issuerlogin@hipay.com value 1 value 2 value 3 first product name first product description 5.2 610 1 REF1 shipping 25 VAT 19.6% second product name second product description 2.14 610 2 REF2 VAT 19.6% shipping 5.25 '; /* * Var $data contain the XML string describing your order */ $data = trim($xml); // your website Hipay key $signKey = 'f48bef09658a1f6570697cd7552a6876'; $encodedData = base64_encode($data); $md5Sign = md5($encodedData.$signKey); ?>