regex to spot both alpha & numeric

[Anon]

I need a regex pattern to validate that a field contains at least 1 alpha and 1 number, in any order/combo of alphas & numerics.

Here is the pattern I came up with:
([a-zA-Z]){1,}([0-9]){1,}|([0-9]){1,}([a-zA-Z]){1,}

Is there a better way or is that it?

I'm new to regular expressions and this seems to work, but would feel better with some input from you regex gurus out there. Thanks

[Anon]

Guru? Not me =), but I'd recommend following:

http://www.contactor.se/~dast/mail2sms/regex.shtml

I'll bet you'll find some info there that might be of use.