$a and $b aren't that special. The sort built-in uses their package versions (try the code below in main:: to see if it still works), but that's as magical as they get. They otherwise act like any other package variable, and you don't have to be afraid of them. I'd stay away from them because they aren't descriptive variable names. 

#!/usr/bin/perl -l

package Foo;
$, = " ";
print sort { $Foo::a <=> $Foo::b } qw( 1 7 2 0 4 3 6 );

[download]

In your sort call within the foreach, you don't need an argument. :)

--
brian d foy <brian@stonehenge.com>

In reply to Re^2: Print not printing by brian_d_foy
in thread Print not printing by perl_lover

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.