PERL: How to Count Numeric Digits

by david(at)

 Date:  Sun, 15 Oct 2000 00:18:13 -0400
 To:  hwg-languages(at)
  todo: View Thread, Original
Hi Folks,

Would someone have the time to provide me with a "simple" (easy to 
understand) expression in PERL that will count the number of digits in a 
text variable.

Specifically, I'm trying to determine that a Phone Number field passed from 
a form contains exactly 10 numeric digits ... ignoring any and all 
parenthesis, dashes, and spaces that may exist in the field.

Thanks in advance for any assistance,


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