Oops, you're right. Outsmarted myself. Thanks! That just goes to prove my earlier point -- this is a tricky technique, and it's easy to get lost.

In effect, there must be a list of variable names somewhere. Let's assume a context like this:

my @names = ("name", "rank", "serial_number"); foreach (@names) { (eval "\$$_")->insert('end', $dat{$_}); }
For that to work, there must be objects $name, $rank, and $serial_number. As before, let Perl handle the bookkeeping:
my %objects = ( 'name' => $name, 'rank' => $rank, 'serial' => $serial) +; foreach (@names) { $objects{$_}->insert('end', $dat{$_}); }
Faster, more understandable, and won't muck about with your symbol table.

In reply to RE: RE: Re: magic eval variables by chromatic
in thread magic eval variables by andyford

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.