$val =~ s|\n|\\n|g;
$val =~ s|"|\\"|g;

No! Please do not escape your data until you need it escaped. Not always do you need those annoying backslashes there. PHP has this evil sort of auto-escapes for SQL queries mainly, but with Perl you can use DBI's excellent placeholders. Where you need it escaped, you can use quotemeta, or its interpolation shortcut \Q: "foo \Q$bar\E baz".

foreach $var (sort(keys(%CONFIG)))

Why sort? You're not using the new order!

my($var,$val) = split(/=/, $qs2[$i]);
$HTTP::QueryString::GLOENV{$var} = $val;

That overwrites earlier set variables. This is described in great detail in Ovid's CGI course. Basically, foo=bar&foo=bar&foo=bar is a valid query string, that sets foo to three values: bar, bar and bar. You'll use this with multiple equally named checkboxes, <select multiple> and probably more.

for( my $i=0; $i<=$#qs2; $i++ )

Do use Perl's for (ARRAY), because it's faster and easier: for (@qs2) {

And use strict!

U28geW91IGNhbiBhbGwgcm90MTMgY
W5kIHBhY2soKS4gQnV0IGRvIHlvdS
ByZWNvZ25pc2UgQmFzZTY0IHdoZW4
geW91IHNlZSBpdD8gIC0tIEp1ZXJk


In reply to Re: HTML Decoding by Juerd
in thread HTML Decoding by emcb

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.