Solved

Regular Expression for UK phone number.

Posted on 2006-10-30
2
1,036 Views
Last Modified: 2010-08-13
I am trying to develop a Regular Expression to validate a UK telophone number, with the following criteria:
* The entry must start with a zero.
* Numbers or spaces only.
* Cannot enter less than 10 or more than 15 numbers.
Ie. valid:

01865 215487
01865215487
020 3265 9854

This was my attempt but its not quite right:

      var regex = /^0\d{4}(\s{0,1})\d{6}$/
0
Comment
Question by:jonatec
  • 2
2 Comments
 
LVL 30

Accepted Solution

by:
callrs earned 250 total points
ID: 17832313
0
 
LVL 30

Expert Comment

by:callrs
ID: 17887420
Thanks.  Code for reference:

<script type="text/javascript">
<!-- Verify UK Phone number -->

var rx1 = /^0\d{4}\s?\d{6}$/
var rx2 = /^0\d{2}\s?\d{4}\s?\d{4}$/
var rx3 = /^0\d{10,15}$/

// test for rx1 and rx2 patterns
var p=new Array("01865 215487","01865215487","020 3265 9854","01234 5678 9012 34","0ab123457890");
var o="";
for (i=0; i<p.length; i++){
      var tested=rx1.test(p[i])
      if(!tested) tested=rx2.test(p[i])
      o=o+p[i]+": "+tested+"\n"
      }
alert(o);

// test for rx3, after trimming out spaces
o="After trimming spaces to allow for 10 to 15 digits\n";
for (i=0; i<p.length; i++){
      var newp=p[i].replace(/\s*/g,"");
      var tested=rx3.test(newp)
      o=o+p[i]+": "+tested+"\n"
      }
alert(o);

</script>
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
JavaScript Sort Ordering and Choice Limiting 5 38
Help with Javascript to round decimal points to 2 13 31
ASP get fieds value 2 20
Check input text, Number 6 26
Introduction HTML checkboxes provide the perfect way for a web developer to receive client input when the client's options might be none, one or many.  But the PHP code for processing the checkboxes can be confusing at first.  What if a checkbox is…
Nothing in an HTTP request can be trusted, including HTTP headers and form data.  A form token is a tool that can be used to guard against request forgeries (CSRF).  This article shows an improved approach to form tokens, making it more difficult to…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

685 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question