Re: changing package variables?


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Re: changing package variables?

by jasonk (Parson)

on Mar 04, 2003 at 23:50 UTC ( #240488=note: print w/replies, xml )

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in reply to changing package variables?

Because the variable in the package is declared within the scope of that package. So basically you now have two variables:

$MYPACKAGE::var1 contains 'DEFAULT I WANT TO CHANGE'
$main::var1 contains 'PRINT THIS'.

You need to peruse perlvar and the docs for the package command.

Comment on Re: changing package variables?

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Re: Re: changing package variables? by LameNerd (Hermit) on Mar 05, 2003 at 00:06 UTC
Thanks! I was under the mistaken impression that doing use MYPACKAGE qw / sub1 /; use vars qw / $var1 /; Would give me instance of $MYPACKAGE::var1 in my main package scope. So what's the diffence between use vars qw / $var1 /; and my $var1 ?????? What was I thinking?	[reply]
Re: Re: Re: changing package variables? by arturo (Vicar) on Mar 05, 2003 at 15:55 UTC
In a nutshell :`my` does not declare a package variable. `use vars` does. There's a wealth of information on this topic in the Tutorials section of the site (subsection "variables"); I'll plug my Variable Scoping in Perl: the basics and Dominus' Coping With Scoping specifically. update adjusted the link to CwS to point directly to it. If not P, what? Q maybe? "Sidney Morgenbesser"	[reply] [d/l] [select]

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