I'm not sure if this is a multi dimensional hash, but I'm grabbing the information from an XML document and I'm parsing it into a hash. It works fine, except when I'm trying to navigate through one of this multiple-keys:

'characters' => {
        'Apple' => {
                    'fruit_id' => '0'
         },
        'Orange' => {
                    'fruit_id' => '0'
        },
}

[download]


I'm trying to loop through each key, I dont care what the data is in the element, I just want the key, I tried doing something like this:

 my $fruits_xml = $xml_feed->{grocery}->{produce};
 #narrowing just to produce here.

while( my ($fruit_name) = each %$fruits_xml)
{
...
}

[download]
I generally know how a hash functions, but for some reason this results as an infinite loop, iterating through the hash over and over.

This is my first time working with hashes, and really this project is being done for learning how to be more comfortable with hashes and references.

Any ideas / tips to help me along my way?

Thanks!

In reply to 'Multi-Dimensional' Hash by Trihedralguy

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.