Phone numbers and form fields

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To log into T-Mobile's web site you give them your phone number.  Ok.

123.456.7890

"12345678: Your phone number should be 10 digits.  For example: 1234567890"

How hard is it to strip out non-digits from input, people?!

I see this all the time.  Phone numbers.  Credit card numbers.  Postal codes.
I mean, christ.  $input =~ s/\D+//g;

• Phone numbers and form fields Michael G Schwern 21:21 on 03 Mar 2005
  • Re: Phone numbers and form fields peter (Peter da Silva) 21:23 on 03 Mar 2005
    • too deep to show
  • Juerd 21:24 on 03 Mar 2005
  • Jarkko Hietaniemi 21:56 on 03 Mar 2005
    • too deep to show
  • Tony Bowden 22:04 on 03 Mar 2005
  • Philip Newton 05:35 on 04 Mar 2005
    • too deep to show
  • David Cantrell 14:27 on 04 Mar 2005
  • Darrell Fuhriman 16:29 on 04 Mar 2005
  • velut luna. immanis. 17:43 on 04 Mar 2005
    • too deep to show
  • Earle Martin 20:03 on 01 Apr 2005
• Michael G Schwern 16:20 on 04 Mar 2005
  • David Wheeler 23:57 on 04 Mar 2005
    • too deep to show
  • peter (Peter da Silva) 14:44 on 05 Mar 2005
• Michael G Schwern 02:54 on 09 Mar 2005
  • peter (Peter da Silva) 04:20 on 09 Mar 2005

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