From: <[EMAIL PROTECTED]>
> I use preg_match to validate the Middle Initial field of a form and so far
> it works, except yesterday a user submitted a "0" (zero) as a middle
> initial! My regexp is:
>
> if (!empty($_POST[MI]) && (preg_match('/^[[:alpha:]]{1,1}$/', $_POST[MI])
== 0))
>
> I tested it with 0-9 and my regexp catches every digit except 0.
Curious...
empty("0") is going to be true. So, !empty("0") is going to be false, so you
won't "catch" the zero.
---John Holmes...
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