Why doesn't this RegEx match the phone number? How to fix?

Question

I have this phone number: +44 (0) 1234 123456

which the following regex is attempting to validate, but fails:

var regexPhone = new Regex(@"^(\+)?([0-9\s\-])*$");

Can somebody tell me why it's failing? Is it possible to change this so that it will validate the number above?

score 1 · Accepted Answer · edited May 23 '17 at 12:20

1

Your regex does not allow any brackets.

See if Jabos's answer to this question can help you along.

edited May 23 '17 at 12:20

Community

answered Feb 17 '11 at 12:48

Jens

I'm pretty sure those are called parentheses. – juharr Feb 17 '11 at 13:05
outside the US it's fairly common to refer to 'parentheses' as 'brackets' – DaveDev Feb 17 '11 at 14:19
@juharr: http://dictionary.cambridge.org/dictionary/british/round-brackets I am from Germany where UK english is taught at schools. – Jens Feb 17 '11 at 14:36

score 0 · Answer 2 · answered Feb 17 '11 at 12:50

0

I'd recommend you use The Regulator to debug your regex.

answered Feb 17 '11 at 12:50

Stefan Dragnev

score 0 · Answer 3 · answered Feb 17 '11 at 12:59

0

As Jens pointed out, your regex does not allow brackets.

^(\+)((\([0-9\s\-]*\))|([0-9\s\-]))*$

This regex should work. It allows some digits to be inside brackets also.

answered Feb 17 '11 at 12:59

Draco Ater

3 Answers3