[FX.php List] [OFF] Luhn validation for Credit Card?

[Head Honcho]

Hi Joel,

On 07/08/2009, at 11:19 AM, Joel Shapiro wrote:

> Hi all
>
> I've inherited a project that validates a basic credit card number  
> within FMP using the Luhn algorithm
>
> ("The Luhn algorithm or Luhn formula, also known as the "modulus 10"  
> or "mod 10" algorithm, is a simple checksum formula used to validate  
> a variety of identification numbers, such as credit card numbers..."
> http://en.wikipedia.org/wiki/Luhn_algorithm )
>
> I'd rather check this in the PHP before submission to FMP.

I check this with javascript before it gets sent to the server. I also  
have a php check script if jonathan's doesn't suffice.

HTH.

Regards

Michael Ward
--
Head Honcho
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