first example:

OK, you want extend a singular declaration for a package to multiple files. That's handy when you want to split a big package into multiple files, but you can achieve this with "require" and "do". 

 
#--- subfile
my $file="our_reg.pm";
print "$file: $x";

[download]
#--- basefile
use strict;

my $file="our_base.pl";
$\="\n";

package one;
our $x=__PACKAGE__;

print "$file $x";

require our_req;

package two;
our $x=__PACKAGE__;

print "$file $x";

do "our_req.pm";

[download]
#--- OUTPUT
/usr/bin/perl -w /home/lanx/perl/pm/declare/our_base.pl 
our_base.pl one
our_reg.pm: one
our_base.pl two
our_reg.pm: two

[download]
for most other cases I can think of, it's IMHO better to use getter and setters for packvars, if you don't want to repeat the "our"-declaration.

second example:

Right,,in contrast to "our" the scope of "vars" is bound to "package". That's why one should use curlies around multiple packages, to clarify the scopes!!!

That's exactly my point, you can use "our" like "my", without getting confused about different scoping rules...

Cheers Rolf

UPDATES:

Let's sum it up, TIMTOWTDI, and you prefere saving code with the one variant and prefere saving some lines with the other .. ; )

well how is it done in perl6???

In reply to Re^17: the "our" declaration ?!! (special vars) by LanX
in thread the "our" declaration ?!! by perlpal

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.