On Mon, Mar 17, 2008 at 12:04 PM, Paul Lalli <[EMAIL PROTECTED]> wrote:
> On Mar 17, 2:46 pm, [EMAIL PROTECTED] (Gunnar Hjalmarsson) wrote:
> > Kashif Salman wrote:
> > > I have a CGI script; when it runs the very first time I define some
> variables
> > > my $action = $q->param('action');
> >
> > > The first time it runs, parameter 'action' isn't defined so that is
> > > how I check that it is running the first time and do my things
> >
> > > if ($aciton eq "") {...}
> > > elsif ($action eq "submit") {...}
> >
> > > the elsif runs if I hit a button on a form which has a hidden field
> > > that sets action="submit". My question is that the script produces a
> > > warning on the if statement " Use of uninitialized value in string eq
> > > ". How can I get rid of that without using "no warnings". I tried 'if
> > > (defined("$action"))' but that still produces a warning.
> >
> > if ( ! $action ) {...}
>
> That'll work great until some jackass puts "?action=0" in the URL.
>
> Using defined() is correct. It's what he's passing to defined()
> that's not.
>
> Paul Lalli
>
>
>
>
> --
Thank you
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