Where PHP regex fails

(written by lawrence krubner, however indented passages are often quotes). You can contact lawrence at: lawrence@krubner.com, or follow me on Twitter.

Andrei Zmievski has a post about a regex that should have detected primes, but it ran into a problem with the PHP code that handles regex.

Post external references

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    http://zmievski.org/2010/08/the-prime-that-wasnt
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