reg ex telephone number

Question

How do i change any of the following to just numbers

1-(999)-999-9999 
1-999-999-9999
1-999-9999999
1(999)-999-9999
1(999)999-9999

i want the final product to be 19999999999

possible duplicate of [A comprehensive regex for phone number validation](http://stackoverflow.com/questions/123559/a-comprehensive-regex-for-phone-number-validation) — JYelton, Aug 10 '10 at 15:10

score 2 · Accepted Answer · answered Aug 10 '10 at 15:11

The easiest way would be to strip everything out of your string that's not a number and then see if you end up with a 10 digit number (or 11 if you're making the 1 mandatory):

$string = "1-(999)-999-9999";
$number = preg_replace('/[^0-9]/', "", $string); // results in 19999999999
if (strlen($number) == 11)
{
  // Probably have a phone number
}

score 2 · Answer 2 · answered Aug 10 '10 at 15:12

2

try

preg_replace('\D', '', $string);

This will filter out any non digits.

answered Aug 10 '10 at 15:12

CEich

31,956
1
16
15

score 0 · Answer 3 · answered Aug 10 '10 at 15:13

0

You dont really need regex for this...

$number = str_replace(array('-', '(', ')'), '', $number);

answered Aug 10 '10 at 15:13

OIS

9,833
3
32
41

what about things like `x`, `ext`, `.`, `+`, etc – CaffGeek Aug 10 '10 at 15:19
If you know the input will be like one of the examples then thats all you need. If you dont know the input then you need more validation anyway. – OIS Aug 10 '10 at 15:23

score 0 · Answer 4 · answered Aug 10 '10 at 15:18

0

preg_replace('[\D*]', '', '1-(999)-999-9999');

answered Aug 10 '10 at 15:18

Russ

133
5

reg ex telephone number

4 Answers4