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

[Jonathan Schwartz]

Question for Michael...

It is said that you can not rely on javascript working 100% of the 
time.  Do you agree?  If so, do you have a backup for dealing with 
that event...such as running a php script instead, for instance?

Thx

Jonathan

At 3:49 PM +1000 8/7/09, Head Honcho wrote:
>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
>CustoMike Solutions
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-- 
Jonathan Schwartz
Exit 445 Group
jonathan at exit445.com
http://www.exit445.com
415-370-5011