On Sat, 2008-10-18 at 22:56 -0600, Govinda wrote:
> Hi all
>
> This is not exactly PHP, but an issue that we have to work out in code
> (whatever we use) -
> I am working on a shopping cart site which will have orders from any
> country.
>
> To cut down on fraudulent orders, our cc processor (whatever we call
> them), to enable "Address Verification System (AVS)", accepts a var/
> value which is "The numeric portion of the street address". It is
> "Required for AVS". Now to get this from what the user input, I can:
>
> - just read the *numeric* characters off the front of the first (of 2)
> address text inputs, stopping grabbing them once I reach any non-
> numeric char., or I could
> - get *any* numeric chars input in that text area and concatenate
> them all together (if there is more than one continuous run of them), or
> - get *any* numeric chars input in *either* of the address text areas
> and concatenate that all together (if there is more than one
> continuous run of them), or
> - (what are the other possibilities?)
>
> I am asking you guys/gals using AVS: what are they looking for? The
> docs make this clear that they want: "The numeric portion of the
> street address", but just because I can't think of addresses that
> don't match a pattern I am thinking of does not mean they don't exist
> or are not valid. And how should the logic of my algorithm be written
> if it was just for USA addresses? ... and more importantly - if I am
> writing it to handle addresses from any country?
>
> Thanks for any insight/logic based on experience, ;-)
AVS systems I've used don't ask for the street number. They ask for the
entire address and they do the matching for me and return a code
indicating what portions matched. For one client in particular an AVS
fail allows the order to go through, but it is flagged as peculiar and
requires someone to manually reject or allow the order to be fulfilled.
This was necessary since a lot of AVS failures were encountered for
regular clients.
If I had to make a choice given your system, I think I would just grab
the integer value of the first address line. No concatenation, and no
fussing with a second line...
$number = (int)$input;
Cheers,
Rob.
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