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Regular Expression Details

Title Test Find Pattern Title
Expression
\d{4}-?\d{4}-?\d{4}-?\d{4}
Description
Major credit card validator. Only checks that the format is 16 digits (optionally separated by hyphens), not the value of any of the digits.
Matches
1234-1234-1234-1234 | 1234123412341234
Non-Matches
1234123412345
Author Rating: Not yet rated. Steven Smith
Source http://aspalliance.com/QuickStart/howto/doc/RegexCommon.aspx
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