php regex remove digits

Question

I need a regex to remove the digits from a string but not also the spaces. I currently have

$city_location = 'UK,0113|Leeds new york';
$sip_city = '0113Leeds new york';
 $city = preg_replace('/[^a-z]/i', '', $sip_city);

It removes the digits but also the spaces so I need a regex which won't remove the spaces.

Dogbert · Accepted Answer · 2011-06-18 17:13:33Z

13

Use \d if you want to remove all digits

$city = preg_replace('/\d/', '', $sip_city);

Or [^a-z\s] if you want to replace all except alphabets and whitespaces

$city = preg_replace('/[^a-z\s]/i', '', $sip_city);

answered Jun 18, 2011 at 17:13

Dogbert

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3 Comments

Felix Kling Over a year ago

I think you don't need the i flag here :)

lovesh Over a year ago

Michael just wants to remove the digits but your code would remove special charactes like $,@,# or others. what it wont remove is letters of the alphabet and spaces.what do u say about my quote below

Dogbert Over a year ago

@lovesh, my first solution will only remove digits.

Alix Axel · Accepted Answer · 2011-06-18 17:36:32Z

3

use

$city = preg_replace('/[0-9]/', '', $sip_city);

in your code the regex engine doesnt match anything that is not in the alphabet that is A-Z and a-z. so spaces are not in the alphabet and they get matched. i dont have much experience with regex but one thing which i have understood is that

it is better to tell the regex engine what u want rather than telling what u dont want

edited Jun 18, 2011 at 17:36

Alix Axel

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answered Jun 18, 2011 at 17:19

lovesh

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