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Questions tagged [credit-card]

is used for questions related to payment cards. Questions regarding security of payment card data may want to consider using the pci-dss tag.

This tag is used with questions related to payment cards.

If your question is regarding security of payment card data, then you may want to consider using the tag.

Note that much of the advice surrounding this topic is region dependent, so it will help if you mention where in the world you are.

FAQs for this tag:
Which payment gateway should I choose

Terminology associated with this tag:
Merchant
Payment Gateway / Service Provider
PCI-DSS

1191 questions
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How do I mock up an extended processing response from authorize.net?

We have an eCommerce site that is using Authorize.net as a payment gateway. We have recently run into the issue of people submitting a payment confirmation, and then clicking submit again later on. This is resulting in a double-product situation,…
Barry Chapman
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Paypal Web Payment Pro hangs when order is submitted

Sometime last weekend our Opencart install, version 1.5.1.3 started to process duplicate orders for CC payments made through PayPal Website Payment Pro. It happens in the same order sometimes it will process twice. Sometimes 3 times.Payments made…
jhebb
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MagTek -- uDynamo (DUKPT)

Has anyone been able to successfully decode the information from a MagTek uDynamo card reader on android? I have the test application working correctly, but I need to be able to decode the card number. It is DUKPT encryption. It's for an internal…
Nathan Tornquist
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Payment: Pay via prepaid card

I want to integrate into my website different payment option for example, I want to let customers pay via prepaid card(paypal is already integrated) . I have two questions: How to integrate prepaid card payment with jsp? How can I integrate other…
user2051347
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What's the best way to avoid chargebacks in an ecommerce web app?

Is there a particular payment method that is less susceptible to chargebacks than others?
Hugo
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2 answers

Iphone save Credit card info in keychain or use cryptography?

I am working on an Iphone Application. I need to store a user's credit card information on the Iphone, and I have some questions regarding security. 1) Is it better to implement a cryptography system to encrypt the credit card number (or use one of…
Y2theZ
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DIBS recurring payment, no error message, not working at all

I am using the following code to work, but it is not working require('DIBSFunctions.php'); //Define input variables (here simply static variables) $Merchant = "123456"; $OrderID = "AHJ798123AH-BH"; $Currency = "208";…
Muhammad
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Real Time Debit/ Credit Card Transaction Alert system

We want to create a Platform, where a normal consumer having Multiple Debit/ Credit Cards can easily get real time alerts for all the transactions (swipe/non swipe) that occurred on there Accounts. The Alerts should have all the Transactions details…
user2045773
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issues with credit card validation

I am using credit card validation in my cartridge project to validate the card type and card number.Everything is working fine, but whenever I got the validation error in alert box and when I click OK it doesn't stop on that page but refer me to the…
Inforian
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Flash based credit card payments?

Does anyone know how the entire checkout process including credit card validation and payment/transactions can be done in Flash, without redirecting to another HTML page? Since Flash has all the capabilities of a web browser (page requests, GET,…
Robin Rodricks
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Magento / Authorize.net - "Credit card type is not allowed for this payment method"

I have a client that's running a Magento Community Edition site - version 1.3.2.4 - they've been using PayPal for payments for over a year with no issues at all. Last week we added Authorize.net as an option and configured it to authorize and…
d38
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Credit Card - How Unique is First6,Last4, expMonth & expYear

I'm building a manager class with PHP to manage credit card payment authorizations. With credit cards, we're allowed to keep First6, last4, expiration_Month and expiration_Year. I'm really interested in knowing how unique the combination of these 4…
JustinP
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accepting credit card payments ios

How can I accept credit card payments in my iphone app? I wanted to do the following Allow users to give their credit card information When they do, send credit card to my server using https and proces credit card using stripe on my server. Is…
Kermit the Frog
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how to test paypal with test card number

I am using paypal button.Code is
Advitha
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4 answers

Credit Card Validation Resource for UK merchant

I'm trying to set the credit card numbers based on the standard check parameters but I am finding lots of UK cards (Maestro / Visa Debit / Barclaycard Connect) have start numbers that don't meet other card validation script regexes; I.e Maestro…
Chris McKee
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