On 15/06/11 12:40, Stephen Booth wrote:
Regarding development time, I'd be surprised if you couldn't get a
module/function/component someone has already written to validate a
postcode.  If you can't, you could write one and make it available!
Write once, use often.

If you want to validate and format a postcode in PHP or JavaScript, this works well:

http://www.braemoor.co.uk/software/postcodes.shtml

If you want to verify a postcode (i.e. check that it actually exists), use the MaPit API:

http://mapit.mysociety.org/

I have a minimal library if you just want to check postcodes and are using PHP:

https://github.com/pwaring/mapit-lookup

--
Paul Waring
http://www.pwaring.com

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