Backstory: So, I've been tasked with shoring up a perl script that outputs all manner of information to whoever calls up the page that it is on. it pulls from a number of databases and files, parses their info, adds div tags and font tags and whatnot, and outputs it all as an HTML page. Question: the majority of the adds and blocks of 'print' are using double quotes, not single quotes. even the final block is something like
print <<__ENDER__; $info1 $info2 $info3 $info4 . . $info99 __ENDER__
where each of those info vars are their own little:
$info1="this is some sample stuff".$info_in."<br><br>";
My question - do you *really* get that much optimization from removing all the necessary double-quoted strings, and make them single-quoted?

In reply to Optimizing Perl Code - single versus double quotes really that important? by MashMashy

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.