Credit card match with number + expire and CVV

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Hi i want code in regex or vb.net that match credit card with NUMBER+EXPIRE+CVV in one regex line what I done

\d{4}-?\d{4}-?\d{4}-?\d{4}

credit card number MATCH
(0[1-9]|1[0-2])\/?([0-9]{4}|[0-9]{2})

EXPIRE MATCH
[0-9]{3}$

CVV MATCH
I need credit card match only if match like this

(!chk) beginning word (n) credit card number (M) month (y) year (X) cvv

!chk nnnnnnnnnnnnnnn mmyy xxx
or

!chk nnnnnnnnnnnnnnn mm|yy xxx
or

!chk nnnnnnnnnnnnnnn mm/yy xxx
or

!chk nnnnnnnnnnnnnnn mm\yy xxx
or

!chk nnnnnnnnnnnnnnn mmyyyy xxx
regex

What I have tried:

\d{4}-?\d{4}-?\d{4}-?\d{4}

     credit card number MATCH
(0[1-9]|1[0-2])\/?([0-9]{4}|[0-9]{2})

     EXPIRE MATCH
[0-9]{3}$

Posted 25-Sep-19 4:37am

Member 14603662

Updated 25-Sep-19 11:06am

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3 solutions

Solution 1

Credit card is simple 12 16 digits. <- sorry, not 12 but 16
MM is something like (0[1-9]|1[012]) - i.e 01-09 or 10-12
YY is 2 digits, but you may need to limit their range.
CVV is 3 digits

Posted 25-Sep-19 4:51am

Richard MacCutchan

Updated 25-Sep-19 6:30am

v2

Comments

Member 14603662 25-Sep-19 10:56am

so how can be merge regex in one line

Richard MacCutchan 25-Sep-19 11:45am

"Put them together and what have you got?"

See RegExr: Learn, Build, & Test RegEx[^] where you can test it.

Solution 3

Quote:
i want code in regex or vb.net that match credit card with NUMBER+EXPIRE+CVV in one regex line

What about putting the 3 parts together with a space in between?

\d{4}-?\d{4}-?\d{4}-?\d{4}\s(0[1-9]|1[0-2])\/?([0-9]{4}|[0-9]{2})\s[0-9]{3}$

Just a few interesting links to help building and debugging RegEx.
Here is a link to RegEx documentation:
perlre - perldoc.perl.org[^]
Here is links to tools to help build RegEx and debug them:
.NET Regex Tester - Regex Storm[^]
Expresso Regular Expression Tool[^]
RegExr: Learn, Build, & Test RegEx[^]
Online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript[^]
This one show you the RegEx as a nice graph which is really helpful to understand what is doing a RegEx: Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.[^]
This site also show the Regex in a nice graph but can't test what match the RegEx: Regexper[^]

Posted 25-Sep-19 11:07am

Patrice T

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MadMyche · Accepted Answer · 2019-09-25T05:14:00

Using RegEx for Credit Cards is at best rudimentary; you are better off validating what you are actually working with

Credit Card numbers themselves are generally at least 16 digits long; the primary exception being American Express which uses 15 digits.

CVV numbers are 3 digits long for most; and again, American Express is the outlier with 4 digits.

Dates are 2x2 digits.

Now for validating....
Identify the card being presented-
It it a card that your business will accept?
Is it the correct length?
Does it pass the LUHN algorithm check.

CVV only needs to match the correct length; which depends on identifying the card type

Expiration date needs to be a valid month and date, AND it must be in the future