in reply to Re: How to Print Return Data from Subroutine
in thread How to Print Return Data from Subroutine

Thank you all for giving quick replies. I noticed all of you are using data dumper to print the output. But I wonder if there is another way to print the output eg. using foreach for the hashes and array as I want to further manipulate the content of the array / hashes.
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Re^3: How to Print Return Data from Subroutine
by syphilis (Archbishop) on Aug 24, 2008 at 03:21 UTC
    I wonder if there is another way to print the output

    Another way to extract the key/value pairs from a hashref: 
    use strict;
use warnings;

my %h = (foo => 1, bar => 2, foobar => 3);
my $hashref = \%h;

print $hashref, "\n"; # prints HASH(0x.......);

for (keys(%$hashref)) {
    print "$_ => $hashref->{$_}\n";
}

    [download]
    Cheers,
    Rob
[reply]
[d/l]
      Thanks, Rob. This method works fine because they are all scalar (foo, bar, and foobar). But what if bar is an array and foobar is a hash... How would you print them just as what you did in your example?

      Also, what do you call this topic? Dereferencing the hash / array reference?
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