credit-card

What is the right way to verify a credit card with a regex? If which one to use there are tons online. If not how to verify? cletus How can I use credit card numbers containing spaces? covers everything you should need. See this link Finding or Verifying Credit Card Numbers with Regulars Expressions Visa: ^4[0-9]{12}(?:[0-9]{3})?$ All Visa card numbers start with a 4. New cards have 16 digits. Old cards have 13. MasterCard: ^5[1-5][0-9]{14}$ All MasterCard numbers start with the numbers 51 through 55. All have 16 digits. American Express: ^3[47][0-9]{13}$ American Express card numbers start

The new iOS8 Scan Credit Card option is great on Safari. Has someone managed to make it work inside a WebView for a web app? I am using a valid SSL certificate, and I am using the correct ID for input filed as described here: https://stackoverflow.com/a/25925195/3949713 Thanks. No, this option is not available in neither UIWebView nor WKWebView . Your best bet is to use SFSafariViewController instead. The reason it works there is because it runs in a separate process, to prevent your app from getting access to this security-relevant information. 来源： https://stackoverflow.com/questions/26520578

Is there a way we can find the name of the bank from the details that we get after scanning a card? The only relevant info seems to be Card type - Visa etc and the last four digits of the account number. mbmccormick Yes, you can. We had to do this a while back for an e-commerce application we wrote. The first 6 digits of a credit card is known as the Bank Identification Number (or BIN). Some credit card processing gateways can return this information, or you can do it yourself. There are public databases with this information stored for each card type: VISA, MasterCard, AMEX, etc. This list

I'm wondering what's the best way of accepting payments from credit cards that require 3-D Secure verification. Currently the checkout flow is like this: Customer submits payment Payment gateway returns an error stating that the card requires 3-D secure code processing. Returns the ACS URL in the response I redirect user to the issuing bank's verification site and I pass a callback URL for the ACS to redirect after completion of verification Customer enters verification code and ACS redirects to the callback URL with an authorization token indicating successful verification To complete the

Possible Duplicates: Best practices for taking and storing credit card information with PHP Storing credit card details Storing Credit Card Information I need to store credit card numbers within an e-commerce site. I don't intend on storing the whole credit card number, as this would be highly risky. I would like to store at least the first five digits so I can later identify the financial institution that issued the card. Ideally, I would like to store as much of the credit number as I safely can, to aid any future cross-referencing etc. How many digits, and which particular digits, can I