Does anybody know of a good way to make sure that a string contains ONLY
certain characters.  I tried using
ereg("[~`!@#$%^&*(){}-+=|\\/.,<>'\":;\[\]]", $string); but I get parse
errors.  Besides that I only want the characters A-Za-z0-9_ in $string.  Is
there is simpler way to ensure this rather than checking to see if any of
the characters I don't want are in there?

Thank you for your help in advance.

Joshua E Minnie/CIO
Phone: 616.276.9690
Fax: 616.342.8750
Nextel: 616.862.2847

"Don't work for recognition, but always do work worthy of recognition."

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