troubleshooting Question

Extract credit card numbers from string of numbers

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techsmile asked on
Visual Basic Classic
10 Comments1 Solution2419 ViewsLast Modified:
I have a field containing a string of numbers (varying lengths), some of which will contain credit card numbers and others will only contain junk (invoice numbers, etc).  I need a VB public function that I can utilize in Access that will parse through the string of numbers looking for a potential credit card number "first digit", then check the next 16-digits to see if it contains (1) enough digits and (2) digits that would be valid for a credit card number.  If it contains a credit card number, the number may or may not start in the first position in the field.  Thank you!

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