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Ken Guest's Blog:
Validation in Depth - a retort to using just regular expressions
May 27, 2008 @ 07:58:54

Ken Guest, in a response to another post from a different blogger, has posted some of his own validation replacements for the regular expression method the other blogger chose.

I've noticed that Richard Heyes, who professes himself to be a php guru, deleted my comment on his "Some common regular expressions" posting which simply pointed out his expressions didn't quite do the job and suggested a few PEAR packages that should be used instead of the expressions that he proffered

His examples have the benefit of what he calls "defense in depth" - the functionality to catch a bit more than just a regular expression can alone. His examples include PEAR_Validate for email addresses, Net_CheckIP2 for IP addresses and the Validate_UK package for the sort code and telephone numbers.

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pear package regular expression validate email telephone ipaddress domain



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