On 3/12/06, Curt Zirzow <czirzow@xxxxxxxxx> wrote:
> On Sun, Mar 12, 2006 at 12:09:42PM -0700, Paul Goepfert wrote:
> > Hi all,
> >
> > I am trying to validate phone numbers in a web form that I have
> > created. I am using a regular expression to validate the phone
> > number. It seems when I enter the phone number in the following ways
> > I get errors
> >
> > (123) 456 7890
> > 123 456 7890
> > (123) 456 - 7890
> > 123 456-7890
>
> Dont forget:
>
> 123.456.780
> 1-123-456-7890
>
> >
> > ...
> >
> > $validPhone = "^([0-9]{3}[ ]*)?[0-9]{3}[ ]*[0-9]{4}$";
> >
> > By the way The phone numbers are in US format.
>
> With US phone numbers I always use this approach to avoid what
> format people use to enter the phone:
>
> - Remove any non digit
> $check_phone = preg_replace('/[^0-9]/', '', $phone);
I just want to be sure about something. Is there a second quotation
mark missing? I only count one and I added a space between the
quotes.
Paul
>
>
> - If $check_phone strlen < 10.. invalid
> - if $check_phone strlen == 11 && first char == '1'.. remove it
> - if $check_phone strlen == 10, seems ok
> - possible area code check with prefix check (if have db to
> support that)
>
> I would even go as far as storing the phone striped of any
> formating and only format it when you display it.
>
> The other option would to make three seperate input fields in the
> form and join them together in your script:
>
> (<input name="phone[area]">) <input name="phone[code]">-<input name="phone[num]">
>
>
> Curt.
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>
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