====== PHP Hosted Subscriptions ====== **Settings file (%gatewaySampleFileName_account.inc):** ---- \\ **Subscription redirect (%gatewaySampleFileName_subscription.php):** 0). Format: DD-MM-YYYY $dateTime = requestDateTime(); # Verification string $requestHash = subscriptionRequestHash($subscriptionMerchantRef,$secureCardMerchantRef, $dateTime, $startDate); # Request URL for the Gateway $requestURL = $gateway."/merchant/subscriptionpage/".$subscriptionAction; # Write the HTML of the submission form echo "
\n"; writeHiddenField("TERMINALID", $terminalId); writeHiddenField("MERCHANTREF", $subscriptionMerchantRef); writeHiddenField("STOREDSUBSCRIPTIONREF", $storedSubscriptionMerchantRef); writeHiddenField("SECURECARDMERCHANTREF", $secureCardMerchantRef); writeHiddenField("DATETIME", $dateTime); writeHiddenField("STARTDATE", $startDate); writeHiddenField("HASH", $requestHash); # Write the JavaScript that will submit the form to Gateway. echo '
Submitting Subscription setup request to Gateway...'; ?> ---- \\ Subscription URL **(%gatewaySampleFileName_subscription_response.php)** (URL for this page is setup as “**Subscription URL**” through Terminal Setup in the %SelfCare ): ---- \\ **Helper file (%gatewaySampleFileName_subscription_functions.inc):** "; } # This generates a DATETIME value in the correct format expected in the request. function requestDateTime() { return date('d-m-Y:H:i:s:000'); } # This is used to generate the Authorisation Request Hash. function subscriptionRequestHash($merchantRef, $secureCardMerchantRef, $dateTime, $startDate) { global $terminalId, $secret; return md5($terminalId . $merchantRef . $secureCardMerchantRef . $dateTime . $startDate . $secret); } # This function is used to validate that the MPI Response Hash from the server is correct. # If subscriptionResponseHashIsValid(...) != $_REQUEST["HASH"] then an error should be shown and the Subscription registration should fail. function subscriptionResponseHashIsValid($responseCode, $responseText, $subscriptionMerchantRef, $dateTime, $responseHash) { global $terminalId, $secret; return (md5($terminalId . $responseCode . $responseText . $subscriptionMerchantRef . $dateTime . $secret)==$responseHash); } ?>