| Re: Zip Codes ctype? Pregmatch? RESOLVED [message #182640 is a reply to message #182634] |
Tue, 20 August 2013 19:06   |
bill
Messages: 310
Registered: October 2010
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Senior Member |
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As usual, after futzing with a problem for a couple days and end up
finally finding multiple solutions.
Thanks all,
Twayne`
On 2013-08-20 1:27 PM, Twayne wrote:
> Hi all,
>
> 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". But Canadian is a different story because:
> It consists of alternating alpha and numeric characters (AnAnAn) but
> not the entire alphabet. 8 N.A. English letters are not used, as in
> DFIOQUW AND Z or put another way, they only use 18 letters in their
> postal codes.
> I haven't see a single example in all my research to check if the
> 1st, 3rd, and 5th characters are alpha and th 2nd, 4th and 6th
> characters are numeric.
>
> I've tried preg_match and strpos without succees, likely due to my own
> weakness with preg_match, and regex creates an incredibly long statement
> I'm sure it's not right to put upon the servers; they slow down even my
> local server XAMPP & PHP 5.3 on win 7.
>
> Might anyone have a better method?
>
> Or know of any functions anywhere that could be modified to be used?
>
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