Posted by John Nichel on 04/29/05 18:25

Diana Castillo wrote:
> what kind of a function can I use that will tell me whether a variable is
> alphanumeric (that is has only characters A-Z or 1-9 )?
>
>

Something like this should work. (untested)

preg_match ( "/^([a-z]||[A-Z]||[0-9])+$/", $string )

--
John C. Nichel
ÜberGeek
KegWorks.com
716.856.9675
john@kegworks.com

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