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regular expression ?

Posted on 2013-06-30
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Last Modified: 2013-06-30
Can someone let me know what this regex translate to?

"^(\+|00)[1-9][0-9]{3,20}$"

Thank you,
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Question by:aej1973
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Terry Woods earned 1000 total points
ID: 39288577
Produced by http://myregextester.com with the Explain option on:

  ^                        the beginning of the string
----------------------------------------------------------------------
  (                        group and capture to \1:
----------------------------------------------------------------------
    \+                       '+'
----------------------------------------------------------------------
   |                        OR
----------------------------------------------------------------------
    00                       '00'
----------------------------------------------------------------------
  )                        end of \1
----------------------------------------------------------------------
  [1-9]                    any character of: '1' to '9'
----------------------------------------------------------------------
  [0-9]{3,20}              any character of: '0' to '9' (between 3
                           and 20 times (matching the most amount
                           possible))
----------------------------------------------------------------------
  $                        before an optional \n, and the end of the
                           string
----------------------------------------------------------------------

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It looks to me like a pattern for (roughly!) matching an international phone number, having to start with either 00 or +.

Some values that would match are:
+1000
009000
+199999999999999999999
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Author Comment

by:aej1973
ID: 39288589
Thank you.
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