Phone number validation

[halex]

Hello,

First, I tried to use Search on this site to find "phone validation", then "phone", then "validat", then "check phone"... and didn't get any result. I think I am doing something wrong with search, because somebody should have the same question...

Question:
I want to validate phone number. Allowed characters are: digits,
blank character, parenthesis "(", ")", dash "-", and plus "+". My idea is to transform these character (with string replace function) to digits and than to check if the result is number (is_numeric).

Does "ereg_replace()" replace all occurencies of pattern String?

[mmilano]

maybe something like this? then you won't have to verify if it is all numbers because the preg_replace will do that for you.

<?
$phone=preg_replace("*[^0-9]*","",$phone);

if(strlen($phone) != 10)
{
     echo "invalid phone number";
}
?>

maybe a better way, but this is the first one i could think of.

[cyrill]

Hi

Regular Expression - I think on this page you will find all the information you're looking for.

http://www.phpbuilder.com/manual/ref.regex.php

Cyrill

[halex]

You are the most fastest answering forum I've ever seen 🙂

[mmilano]

i am having fun with it tonight .. i will be paying for it in the morning when i go to work 😉