I originally added this to Wikipedia’s Luhn algorithm page but one of their editors deemed there to be too many language implementations, and so they scrubbed it.
I’m posting it here for other PHP programmers, this might save you a few minutes work.
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For several months now I’ve thought MySQL 5′s push to a production ready status was more of a political move than technically justified. First I read this and again today when it came time to compile any MySQL support into PHP 5.1.4 on my newly installed Linux box I ran into problems. Read the rest of this entry »