| Re: Zip Codes ctype? Pregmatch? [message #182658 is a reply to message #182657] |
Sat, 24 August 2013 10:52   |
Thomas 'PointedEars'
Messages: 701
Registered: October 2010
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Senior Member |
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Curtis Dyer wrote:
> Thomas 'PointedEars' Lahn <PointedEars(at)web(dot)de> wrote:
>> Thomas 'PointedEars' Lahn wrote:
>>> Thomas 'PointedEars' Lahn wrote:
>>>> Norman Peelman wrote:
>>>> > On 08/20/2013 01:27 PM, Twayne wrote:
>>>> >> I'm attempting to check for US and Canadian zip codes
>>>> >> (postal codes). The US is easy; mostly just be sure it's
>>>> >> five numerics and except "00000" and "99999". [â¦]
>
> <snip>
>
>>> Replace this line with
>>>
>>> preg_match('/^(?![09]{5})\\d{5}(?:-?\\d{4})?$/',
>>> $possibleZip,
>>>
>>> (add the delimiter).
>>
>> Which is still not correct, because '/[09]{5}/' matches "90909",
>> which is thus designated not valid. ISTM that alternation is
>> required here:
>>
>> preg_match('/^(?!0{5}|9{5})\\d{5}(?:-?\\d{4})?$/',
>> $possibleZip);
>
> Perhaps you might also keep invalid postal codes in an array to look
> up before utilizing the regular expression.
I did that exactly where you snipped.
PointedEars
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