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Perl: the Markov chain saw

Re: A Beginner Apparently Sucks With Hashes...

by CheeseLord (Deacon)
on Jul 22, 2001 at 10:28 UTC ( #98778=note: print w/replies, xml ) Need Help??

in reply to A Beginner Apparently Sucks With Hashes...

I can tell you why it happens... this line right here:

%FormData = split(/=/, $Part);

Inside that foreach loop, you're overwriting the hash each time. You'll probably want to do something like this:

my ($name, $value) = split /=/, $Part; $FormData{$name} = $value;

However... there are MUCH easier ways to do parameter grabbing, and I (along with 99% of the monastery) suggest you check out and use, along with strict and -w, if you aren't already. Hope that helps!

Update: Added example code.

His Royal Cheeziness

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Re: Re: A Beginner Apparently Sucks With Hashes...
by CharlesClarkson (Curate) on Jul 22, 2001 at 11:19 UTC

    Following CheeseLord's advice might lead to something like:

    #!/usr/bin/perl -w use strict; use diagnostics; use CGI qw/:standard Vars/; use CGI::Carp 'fatalsToBrowser'; my @page; my %form_data = Vars; foreach my $input_name (keys %form_data) { push @page, p( {-align => 'center'}, b($input_name), ": $form_data{$input_name}" ); } print header, html(@page);

    Charles K. Clarkson

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Node Type: note [id://98778]
[choroba]: The documentation just says the second argument should be "characters"
[Eily]: It can also be used to force a copy, and remove magic from a variable
[Eily]: there was a post some time ago about variable coming from regex taking more space than the same string defined directly IIRC

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