[PHP] NEWBIE - How do you strip spaces?

[Craig Simon]

I am trying to figure out how to take a phone number as an array element,
and strip out the spaces and parenthesis and just return the numerals.  IE
(555) 555-1212 to 5555551212.
 
I would appreciate any assistance.
 
Thanks
Craig
 
 
Craig Simon                           Senior Systems Engineer
Mobileum Inc.
4234 Hacienda Drive, Pleasanton Ca 94588
(O) 925-251-7269                   (C) 925-487-6005