On Wed, Apr 21, 2010 at 8:38 AM, newbie01 perl <newbie01.p...@gmail.com> wrote:
> Hi all,
>
> If I declare a variable x1 outside of the sub that makes it global, right?
> Now the question is can I have the same variable x1 as a local variable of a
> sub, i.e. will the following work?
>
> $x1 = "cat";
>
> sub sample()
> {
> my $x1="dog";
> ...
> ...
> }
You can.
>
> Just trying to work out some guidelines on using variables, i.e. using
> local, my or global and some naming converntion stuff ...
>
> Is there some good links on such guidelines?
>
You really should read this article:
http://perl.plover.com/FAQs/Namespaces.html.en
--
Jeff Pang
http://home.arcor.de/pangj/
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