When you tie and untie a variable what happens to the old contents of the variable?

Is it thrown out the nearest airlock or restored upon untieing?

Details: I'm using Apache::Session to tie a global %sessions hash under mod_perl & HTML::Mason. As this global persists across multiple apache child process requests (and different sessions), I don't want an accidental coding mistake to pass sensitive information from one session into a different one. I figure the best strategy is to tie %sessions in the root autohandler's <%init> section and then untie it in the root autohandler's %cleanup section.

Am I doing this the right way?

-Andrew.


Andrew Tomazos  |  andrew@tomazos.com  |  www.tomazos.com

In reply to tie and untie old value by tomazos

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.