Entry

I have a variable in a new function in a Perl module, I want that varaible to retain its value.

Sep 19th, 2003 10:12
Vincent Milette, Kunal Kapoor,

In your perl-module, you must export the variable. That way, you will be able to use it 
elsewhere.

If you don't know how to export the variable here is the way

...in your module after the package name...
use Exporter;
use vars qw(@ISA @EXPORT $VERSION);

$VERSION = 1.00;
@ISA = qw(Exporter)
;
@EXPORT = qw($var); #export the var to other module or script including this module

use vars qw ($var); # give the possibility to use the var in the module

By exporting the var this way it is easier to create a config file for your program...I do it 
like that all the time


For further help, see:
http://stein.cshl.org/genome_informatics/using_perl_modules/index.html
There is a chapter about Exporting module

There is also other way to do what you want...because with perl..."There's More Than 
One Way to Do It"

HTH
Vincent M.