empty doesnt work either... it still comes up as though something is in them
and excludes either nothing at all or includes everything...even the empty
vars..any reason for that ?
----- Original Message -----
From: "1LT John W. Holmes" <[EMAIL PROTECTED]>
To: "Sunfire" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Wednesday, February 05, 2003 2:43 PM
Subject: Spam: Re: [PHP] empty variables from a form
>
> > > > how would you test for an empty (unused) variable from a form..
> > > > i have a phone number split into 3 different vairiables and want to
> test
> > > to
> > > > see if they were used in the form before displaying either the phone
> > > number
> > > > itself or just leaving it out of the display... what code would be
> good
> > to
> > > > test it with.. the variables are $ac2 $ext2 and $num2
> > >
> > > Use the isset() function:
> > >
> > > if(isset($ac2)) and
> > > if(isset($ext2)) and
> > > if(isset($num2)) { do something }
> > > else { do something else }
>
> That's not a good idea if your trying to check for an empty variable. An
> empty text box, when submitted, will still be set and pass isset(). You
> should use empty() is that's really what you're looking for.
>
> ---John Holmes...
>
>
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