So I've started this little class for doing PayPal voids, refunds, and subscription cancels. My question is, what's the recommended practice? I mean, should I attempt to void the transaction, then ignore error, then refund it, and then cancel the subscription?
Note in my case, the transaction was started from a click on a PayPal Subscription button, and then it got renewed once after the 6 month period ended, and then the customer wanted a refund and to stop further subscriptions.
<?php
class Paypp {
public static function voidCard($r) {
$asData = array(
'METHOD' => 'DoVoid',
'AUTHORIZATIONID' => @ $r['paypal_txn_id'] // tnx_id from subscr_payment IPN
);
return self::_sendData($asData);
}
public static function cancelSubscription($r) {
$asData = array(
'METHOD' => 'ManageRecurringPaymentsProfileStatus',
'PROFILEID' => @ $r['paypal_subscr_profile_id'], // subscr_id from subscr_payment IPN
'ACTION' => 'cancel'
);
return self::_sendData($asData);
}
public static function refundCard($r) {
$asData = array(
'METHOD' => 'RefundTransaction',
'TRANSACTIONID' => @ $r['paypal_txn_id'],
'REFUNDTYPE' => 'full',
'CURRENCYCODE' => @ $r['currency'],
'AMT' => @ $r['gross']
);
return self::_sendData($asData);
}
private static function _sendData($asData) {
global $config;
$sActive = $config->PAYMENT_GATEWAY_DATA->pp->ACTIVE;
$sURL = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_URL;
$sVersion = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_VERSION;
$sUser = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_USER;
$sPass = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_PASS;
$sSig = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_SIG;
$asExtra = array(
'VERSION' => $sVersion,
'USER' => $sUser,
'PWD' => $sPass,
'SIGNATURE' => $sSig
);
$asData = array_merge($asData,$asExtra);
$asOpt = array(
CURLOPT_HEADER => FALSE,
CURLOPT_POST => TRUE,
CURLOPT_RETURNTRANSFER => TRUE,
CURLOPT_POSTFIELDS => http_build_query($asData),
CURLOPT_VERBOSE => TRUE,
);
$hCurl = curl_init($sURL);
curl_setopt_array($hCurl, $asOpt);
$bVerifySSL = @ $config->VERIFY_SSL;
curl_setopt($hCurl, CURLOPT_SSL_VERIFYPEER, $bVerifySSL);
$sResponse = curl_exec($hCurl);
curl_close($hCurl);
return $sResponse;
}
} // end class