Sips-ATOS v2 (BNP Paribas, mercanet)

sips-atos-v2.php

<?php

$action   = 'https://payment-webinit.simu.mercanet.bnpparibas.net/paymentInit';
//$action = 'https://payment-webinit.mercanet.bnpparibas.net/paymentInit';

$merchantId = '002001000000001';
$keyVersion = '1';
$secretKey  = '002001000000001_KEY1';

$Data  = 'amount=1000';
$Data .= '|currencyCode=978';
$Data .= '|merchantId=' . $merchantId;
$Data .= '|normalReturnUrl=http://161.io';
//$Data .= '|transactionReference=534654';
$Data .= '|transactionReference=' . uniqid();
$Data .= '|keyVersion=' . $keyVersion;

$Seal = hash('sha256', $Data . $secretKey);

// Visa      : 4100000000000000
// Mastercard: 5100000000000000
// Maestro   : 5000000000000000

?>

<form method="post" action="<?= $action ?>">
    <input type="hidden" name="Data" value="<?= $Data ?>"/>
    <input type="hidden" name="InterfaceVersion" value="HP_2.9"/>
    <input type="hidden" name="Seal" value="<?= $Seal ?>"/>
    <input type="submit" value="Proceed to payment"/>
</form>