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Re: Zip Codes ctype? Pregmatch?

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On 2013-08-31 2:17 AM, Gordon Burditt wrote:
>> I'm attempting to check for US and Canadian zip codes (postal codes).
>
> For what purpose?  The reason I ask is that the type of checking you
> do may depend on the reason for the checking.

While I certainly appreciate all the data you posted, I'm aware of most 
of it, not all, and my eventual course, which I'm getting around to now, 
is to use their API to determine valid codes (or not).

My "real" reason? Well, I've accomplished what I've set out to do for 
now and the next step is using APIs where they exist; supply a 
zip/postal code and get a response for whether it's valid or not.

>
...

  maybe you need to review what it is you're trying to
> accomplish.
>

My goal is to learn, and what I've learned from tis thread is a great 
deal about using PHP to handle these matters for postal codes and many 
other similar formats that have nothing to do with postal codes. I 
believe I have picked up a good deal of the information/experience I 
need now, and am better off for it.

...

>
> The Standard and Unique ZIP codes are valid for most purposes.

Agreed.
>
...
>
> A ZIP code may change.  I was in 2 zip code splits near Houston,
> Texas around Feb. 1976 where the apartment I moved out of and the
> house I moved into both changed (5-digit) ZIP codes.  9-digit
> codes hadn't been put to use yet.

Which is the draw to using their automated lookups to determine the 
validity or not; it's my current bent.

>

...
>
> On the other hand, if your requirements are to (1) eliminate as
> many bad codes as possible, and (2) a database subscription to
> issued codes is acceptable, and (3) an occasional rejection of brand
> new codes is acceptable, then you want to find an API preferably
> maintained by someone else to do the checking for you.

They're freely available for the US and Canada; I've used them manually 
and they accomplish my goals for me. I'm very hungry for information 
from the learning PHP POV and this has been an excellent thread to that 
end. One of the better things is having learned ctype_ ... something 
I've never used successfully before and now find it an easy thing to 
handle.

Again, thanks for all that information; I appreciate a post like this 
and don't mind saying so.

Regards,

Twayne`
>

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Thread

Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-20 13:27 -0400
  Re: Zip Codes  ctype? Pregmatch? Martin Leese <please@see.Web.for.e-mail.INVALID> - 2013-08-20 11:59 -0600
    Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-20 15:01 -0400
  Re: Zip Codes  ctype? Pregmatch? Robert Heller <heller@deepsoft.com> - 2013-08-20 13:08 -0500
    Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-20 15:03 -0400
      Re: Zip Codes  ctype? Pregmatch? Robert Heller <heller@deepsoft.com> - 2013-08-20 14:36 -0500
        Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-20 20:17 -0400
  Re: Zip Codes  ctype? Pregmatch? RESOLVED Twayne <nobody@spamcop.net> - 2013-08-20 15:06 -0400
    Re: Zip Codes  ctype? Pregmatch? RESOLVED Norman Peelman <npeelman@cfl.rr.com> - 2013-08-20 19:53 -0400
      Re: Zip Codes  ctype? Pregmatch? RESOLVED Twayne <nobody@spamcop.net> - 2013-08-20 20:29 -0400
        Re: Zip Codes  ctype? Pregmatch? RESOLVED Moon Elf <moonelf@moonelfsystem.net> - 2013-12-16 10:02 +0000
          Re: Zip Codes  ctype? Pregmatch? RESOLVED Doug Miller <doug_at_milmac_dot_com@example.com> - 2013-12-16 12:27 +0000
  Re: Zip Codes  ctype? Pregmatch? Norman Peelman <npeelman@cfl.rr.com> - 2013-08-20 19:52 -0400
    Re: Zip Codes  ctype? Pregmatch? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-08-21 14:53 +0200
      Re: Zip Codes  ctype? Pregmatch? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-08-21 14:58 +0200
        Re: Zip Codes  ctype? Pregmatch? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-08-21 15:06 +0200
          Re: Zip Codes  ctype? Pregmatch? Curtis Dyer <dyer85@gmail.com> - 2013-08-24 10:22 +0000
            Re: Zip Codes  ctype? Pregmatch? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-08-24 12:52 +0200
            Re: Zip Codes  ctype? Pregmatch? Doug Miller <doug_at_milmac_dot_com@example.com> - 2013-08-25 14:31 +0000
              Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-25 13:21 -0400
            Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-25 13:17 -0400
      Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-21 19:10 -0400
        Re: Zip Codes  ctype? Pregmatch? BootNic <bootnic.bounce@gmail.com> - 2013-08-21 22:09 -0400
          Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-22 18:22 -0400
  Re: Zip Codes  ctype? Pregmatch? Jeff North <jnorthau@yahoo.com.au> - 2013-08-21 21:25 +1000
    Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-21 18:53 -0400
      Re: Zip Codes  ctype? Pregmatch? Norman Peelman <npeelman@cfl.rr.com> - 2013-08-21 22:46 -0400
  Re: Zip Codes  ctype? Pregmatch? gordonb.qnlcm@burditt.org (Gordon Burditt) - 2013-08-31 01:17 -0500
    Re: Zip Codes  ctype? Pregmatch? Fiver <numeralfive@gmail.com> - 2013-08-31 16:40 +0200
      Re: Zip Codes  ctype? Pregmatch? Norman Peelman <npeelman@cfl.rr.com> - 2013-08-31 11:56 -0400
        Re: Zip Codes  ctype? Pregmatch? Welsh Vanner <welshvanners@welsh-vanners.co.uk> - 2013-08-31 20:23 +0100
        Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-31 20:21 -0400
      Re: Zip Codes  ctype? Pregmatch? Martin Leese <please@see.Web.for.e-mail.INVALID> - 2013-08-31 09:56 -0600
    Re: Zip Codes  ctype? Pregmatch? Twayne <nobody@spamcop.net> - 2013-08-31 20:07 -0400

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