MySQL REGEXP - Removing white space and non-numeric characters

Question

I want to do a search in a MySQL database for phone numbers.

At present with this query:

SELECT person FROM people WHERE phone_number RLIKE \'1234567         


        

Answer 1

how about:

SELECT
    person,
    replace(replace(replace(replace(phone_number,' ',''),'(',''),')',''),'-','') as phone_number
FROM
    people
WHERE
    phone_number RLIKE '^[+]?[-() 0-9]+$';

matches numbers that start with a plus sign, they may contain hyphens, parenthesis and spaces. but no plus signs other than at the start. and also no characters. also removes hyphens, spaces and parenthesis.