On Tue, Apr 27, 2010 at 2:08 PM, Michael Ludwig <[email protected]> wrote:
> Variables declared with "our" are a funny hybrid between global
> variables, which are attached to a package, and lexical variables,
> which are attached to a scope.
They are package variables (usually referred to as globals), which
have a lexically-scoped alias that lets you call them by their short
name. It's the short name alias that is lexical.
Here's a normal use of a package variable:
package Foo;
use strict;
use warnings;
$Foo::bar = 1;
sub print_it {
print $Foo::bar;
}
And here's the exact same thing, using "our" to save some typing:
package Foo;
use strict;
use warnings;
our $bar;
$bar = 1;
sub print_it {
print $bar;
}
Aside from the difference in how you refer to the variable, these are identical.
Hope that helps. If it doesn't, try this:
http://perldoc.perl.org/functions/our.html
- Perrin
