Hi everyone,
I am trying to pull the value of a hash key that has spaces. First off, let me show you the code and then I will ask my question.
my %hash = ( "Common SW Component" => "4885", "Test MMA" => "5130", "Generic key" => "5033", "Another generic key" => "4575", ); print "$hash{$variable}\n";

Now, say  $variable contains a hash key. If the hash key contains a space I get this error, "Use of uninitialized value in concatenation (.) or string" However, if I were to type in  print "$hash{'key with space'}\n"; the value gets returned. Is it possible to have the value returned with the  $variable having spaces? I hope this makes sense. Thanks in advance.

In reply to Problems with Hash Keys and Spaces by Anonymous Monk

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.