If you really want to use a BAD method, which you should NOT use:
while (...) {
$total = $row[0];
...
}
print $total . "\n";
What you SHOULD do is:
use strict;
...
my $total = "";
while (...) {
$total = $row[0];
...
}
print $total . "\n";
-David
On Tue, 17 Aug 2004 10:55:25 -0600, Wiggins d Anconia
<[EMAIL PROTECTED]> wrote:
> > After searching through the Perl Bookshelf CD, I have found that you can
> > declare a global and then use local() to change that value for a block
> > of code. I haven't found how to use a value from within a block of code
> > outside that block of code though. Is this possible? I'm sure I just
> > don't know what to search for in the bookshelf.
> >
> > EXAMPLE:
> > ========================================
> > while (my(@row) = $sth1->fetchrow_array)
> > {
> > my ($total) = $row[0];
> > print "Total Scanned:\t $total\n";
> > }
> >
> > print "Total:\t $total\n";
> >
>
> Essentially you need to declare the variable at the proper scope level.
> So in this example, you need to declare $total outside of the loop,
>
> my $total = 0;
>
> For instance. For much more and a very good coverage of scoping, check out:
>
> http://perl.plover.com/FAQs/Namespaces.html
>
> http://danconia.org
>
>
>
>
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