Most monks are going to tell you that global vars are "Bad", and this is true in almost every case.

There are answers above that tell you why, but neither of them really give an alternative.(Molt was answering at the same time as I) I would suggest returning the data from the function like:
use strict; use CGI; use DBI; my ($COOKIE_ID, $COOKIE_NAME) = &Set_Cookie_Values(); my ($CGI, $DBH) ; sub SetCookieValues { my $id = "this is the cookie id" ; my $name = "this is the cookie name" ; return $id, $name ; }

This way your vars are still scoped (although you still have a bunch in main but that is a different question :) and you are getting exactly what you need.

"Nothing is sure but death and taxes" I say combine the two and its death to all taxes!

In reply to Re: Setting Global Variable in Sub by Rex(Wrecks)
in thread Setting Global Variable in Sub by sshevlin

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.