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This is a very simple ASP implementation of the industry standard LUHN check for credit card validity.
Author: Simon Rafferty Code: ASP 3.0 & VBScript |
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Overall Rating:
 User
Rated
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Dead Useful 
Written by Anonymous User (#1474-164) from Birmingham, England (Monday, June 17, 2002)
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Strengths: no comment
Weaknesses: no comment
Details: Users frequently mis-type credit card numbers. If you are not using on-line authorisation, perhaps just storing the details away so they can be processed manually, this can save a whole heap of effort trying to contact the client. We have seen a 4% increase in successful orders directly attributable to this code. |
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