| Re: Zip Codes ctype? Pregmatch? [message #182657 is a reply to message #182650] |
Sat, 24 August 2013 10:22   |
Curtis Dyer
Messages: 34
Registered: January 2011
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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})?$/',
>> $possibleZip,
>>
>> (add the delimiter).
>
> Which is still not correct, because '/[09]{5}/' matches "90909",
> which is thus designated not valid. ISTM that alternation is
> required here:
>
> preg_match('/^(?!0{5}|9{5})\\d{5}(?:-?\\d{4})?$/',
> $possibleZip);
Perhaps you might also keep invalid postal codes in an array to look
up before utilizing the regular expression.
<snip>
--
Curtis Dyer
<?$x='<?$x=%c%s%c;printf($x,39,$x,39);?>';printf($x,39,$x,39);?>
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