If you want to validate a CC there is an algorythm to validate that the card number is 
a valid number - that is that is a true credit card number.

If you want to validate the card holder name and expiration date you have to submit a 
transaction.  You may be able to run through a charge of $0.00, but I'm sure you'll be 
charged for the transaction.

What are you trying to accomplish?


>
>From: "wish wish" <[EMAIL PROTECTED]>
>Date: Mon, 11 Sep 2000 11:09:56 EDT
>To: [EMAIL PROTECTED]
>Subject: Re: how do check for the valid credit card number without being charged?
>
>
>do you happen to know which one can do it without using a payment service?
>it seems like most of them use some kind of payment service.
>all i want to do here is to make sure user has a valid card(not just a basic 
>on the card number, but on all the relating info name and exp. date) but i 
>don't want to do a transaction. i don't know if it's possible. maybe someone 
>has some insight on it.
>thanks
>
>
>>From: Steve Nelson <[EMAIL PROTECTED]>
>>Reply-To: [EMAIL PROTECTED]
>>To: [EMAIL PROTECTED]
>>Subject: Re: how do check for the valid credit card number without being 
>>charged?
>>Date: Mon, 11 Sep 2000 10:51:20 -0400
>>
>>i think i remember seeing a tag that does that on the taggallery
>>
>><a href="http://www.allaire.com/taggallery">http://www.allaire.com/taggallery</a>
>>
>>Steve
>>
>>wish wish wrote:
>> >
>> > i know there's simple cf and cfx tags out there do some basic valid card
>> > number but is there a way to be absolutely sure that the card is valid
>> > without doing an actual transaction?
>> > 
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