Okay I screwed that example up... Last line should say:

while (my($n,$v) = each %input) { print "$n: $v<br>"; }

[download]

It won't work the way I have it for 2 reasons: 1. I kinda threw a semi-colon in between the EXPR and the loop 2. You must show the loop first when initializing variables within the loop statement (in order to satisfy strict).

And okay, so the following code would work:

#!c:/perl/bin/perl -w
use strict;
use CGI 'Vars';

my %input = CGI::Vars;
print "Content-type: text/html\n\n";
while (my($n,$v) = each %input) { print "$n: $v<br>"; }

[download]

Let's go to lala land and pretend CGI.pm could not do this. What would be the best alternative? (By the way, thanks. I have already modified my scripts to use this wonderful CGI::Vars ;))

In reply to Re: map, grep, for, foreach by mt2k
in thread map, grep, for, foreach by mt2k

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.