OK, all-knowing Monks...

I am trying to determine if a variable contains ONLY letters and numbers. If there are any characters besides letters and digits I want the test to fail. I'm using this code and it's not working: 

if ($newpasswd !~ /[A-Za-z0-9]/) {
     EXECUTE SOME THINGS;
                                 }

[download]
(There is a bracket before the A and after the 9, but it's not showing up in this web page for some reason.)

Any ideas are welcome, thanks!

20050316 Edit by ysth: p & code tags

In reply to Quickie regular expression question. by rementis

Title:
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