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  1. #1
    SitePoint Wizard silver trophy TheOriginalH's Avatar
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    UK postcode verification

    Have searched high and low and have not found a solution that works. There are some proposed @ php.net - but none seem to have it in the bag - anyone solved this successfully?
    ~The Artist Latterly Known as Crazy Hamster~
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  2. #2
    WebAmoeba mythix's Avatar
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    Do you want to check: postcode actually exists OR postcode format is correct?
    Laws are like sausages. You have much more respect for them if you haven't actually seen how they're made.

    http://www.webamoeba.co.uk

  3. #3
    SitePoint Wizard silver trophy TheOriginalH's Avatar
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    Really the format, but it's those pesky London jobs that throw everything to whack. If you know of any good (and pref cheap) online verification systems, I'm all ears!
    ~The Artist Latterly Known as Crazy Hamster~
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  4. #4
    SitePoint Wizard silver trophy someonewhois's Avatar
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    I think it'd help if you told us what the format was

  5. #5
    SitePoint Wizard silver trophy TheOriginalH's Avatar
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    Ah, therein lies the problem....

    It's gonna take someone who is very familiar with the postcode system to crack this. It is not clear-cut at all - I was kinda hoping to find someone who'd done it before.

    There is quite comprehensive discussion here: http://php.planetmirror.com/manual/en/function.ereg.php

    While I do know that none of the proposed solutions seem to work, I don't have a clue how to go about fixing it!
    ~The Artist Latterly Known as Crazy Hamster~
    922ee590a26bd62eb9b33cf2877a00df
    Currently delving into Django, GIT & CentOS

  6. #6
    SitePoint Evangelist
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    http://www.regxlib.com/REDetails.aspx?regexp_id=260

    ^([A-PR-UWYZ0-9][A-HK-Y0-9][AEHMNPRTVXY0-9]?[ABEHMNPRVWXY0-9]? {1,2}[0-9][ABD-HJLN-UW-Z]{2}|GIR 0AA)$



    just sling a \ (or is it /) at the start and end

    or run a search there - one apparently conforms to some format .....

    --------------------------
    United Kingdom
    @# #@@ [postfix]
    @#@ #@@ [postfix]
    @## #@@ [postfix]
    @@# #@@ [postfix]
    @@@ #@@ [postfix]
    @@## #@@ [postfix]
    @@#@ #@@ [postfix]
    @@@ #@@ [postfix]
    (codings vary in length, depending on the first part of the code)

    The initial letters indicate the Postcode area. The Postcode area,
    followed by a number and possibly another letter, makes up the first
    part of the code called the outward code.

    The numeric portion in the outward code may be from 0 to 99. CR0 and WC99
    are two examples of this that are in use.

    The known initial outward codes of type @#@ or @@#@ are: EC#@, WC#@,
    SW1@ (SW1P only?), W1@.

    @@@ #@@ is a unique code GIR 0AA for the Post office Giro bank.

    High numbers, eg BS98, BS99, WC99 etc are generally used for bulk
    mailers (catalogue companies etc.)

    The second portion of the postal code provides granularity at least
    down to individual streets. The digit in the second half may be 0.

    Initial letter(s) indicate the Postcode area of the UK. A variable set of
    letters and numbers follow.

    Postcode Areas (i.e. the initial letters of a postal code):

    AB Aberdeen LL Llandudno
    AL St. Albans LN Lincoln
    B Birmingham LS Leeds
    BA Bath LU Luton
    BB Blackburn M Manchester
    BD Bradford ME Medway
    BH Bournemouth MK Milton Keynes
    BL Bolton ML Motherwell
    BN Brighton N London North
    BR Bromley NE Newcastle-upon-Tyne
    BS Bristol NG Nottingham
    BT Belfast NN Northampton
    CA Carlisle NP Newport (Gwent)
    CB Cambridge NR Norwich
    CF Cardiff NW London North-West
    CH Chester OL Oldham
    CM Chelmsford OX Oxford
    CO Colchester PA Paisley
    CR Croydon PE Peterborough
    CT Canterbury PH Perth
    CV Coventry PL Plymouth
    CW Crewe PO Portsmouth
    DA Dartford PR Preston
    DD Dundee RG Reading
    DE Derby RH Redhill
    DG Dumfries RM Romford
    DH Durham S Sheffield
    DL Darlington SA Swansea
    DN Doncaster SE London South-East
    DT Dorchester SG Stevenage
    DY Dudley SK Stockport
    E London East SL Slough
    EC London East Central SM Sutton
    EH Edinburgh SN Swindon
    EN Enfield SO Southampton
    EX Exeter SP Salisbury
    FK Falkirk SR Sunderland
    FY Blackpool (Fylde) SS Southend-on-Sea
    G Glasgow ST Stoke-on-Trent
    GI Giro Bank (special) SW London South-West
    GL Gloucester SY Shrewsbury
    GU Guildford TA Taunton
    HA Harrow TD Galashiels
    HD Huddersfield TF Telford
    HG Harrogate TN Tonbridge
    HP Hemel Hempstead TQ Torquay
    HR Hereford TR Truro
    HS Hebrides (see note below) TS Cleveland (Teesside)
    HU Hull TW Twickenham
    HX Halifax UB Southall (Uxbridge)
    IG Ilford W London West
    IP Ipswich WA Warrington
    IV Inverness WC London West Central
    KA Kilmarnock WD Watford
    KT Kingston-upon-Thames WF Wakefield
    KW Kirkwall (Orkney) WR Worcester
    L Liverpool WS Walsall
    LA Lancaster WV Wolverhampton
    LD Llandrindod Wells YO York
    LE Leicester ZE Lerwick (Shetland)

    Special UK territories and Postcode area codes/formats:

    GY# #@@ Guernsey
    IM# #@@ Isle of Man
    IM## #@@ Isle of Man
    JE# #@@ Jersey

    New area introduced in 1995: HS Hebrides (recoding of PA8#) because
    of unacceptably high level of manual miscodes to PA8.

    Stray Notes:

    Alan Pritchard (2) - "I have come across a number of mnemonic and
    'personalised' codes. I am still not sure whether these are deliberate
    or coincidental. I have a list of them somewhere but from memory.
    Kings College, Cambridge (which thinks a lot of itself): CB1 1ST.
    Department of National Savings ... 1NS. British Telecom DH99 1BT, the
    one I really liked of a hospital which was ... 1LL"

    (1,2,3,8)
    -------------------------------


    from http://www.magma.ca/~djcl/postcd.txt
    teckis - that's news to me.

  7. #7
    No. Phil.Roberts's Avatar
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    You may run into problems when dealing with armed forces postcodes based in Northern Ireland. They look something like "BFPO33".....

  8. #8
    SitePoint Evangelist
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    BFPO ## is worldwide btw, the acronym means British Forces Patrolling Overseas or somesuch - might be worth slinging a workaround into the regex though for them.
    teckis - that's news to me.


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