Re: hash of arrays question

Skeleton Man wrote:

I'm new to perl and have a question. The perl book
says that hashes map keys to values. Using the reverse
function you can map values to keys. My problem is
I have a hash of arrays and I want to map an array
of values to a particular key. Is there any way to
do this?

There are two ways to do this:

$sample{'key1'} = ['item1', 'item2', 'item3']; # Array of values mapped to
a single hash key (note the use of square brackets [])
print $sample{'key1'}[0]; # Prints "item1"

Or:

@data = ('item4, 'item5', 'item6', 'item7'); # Create a new array
$sample{'key2'} = \@data; # Take a reference to the
array (backslash operator), you could use any existing array here too.
print $sample{'key2'};


Let me know if you need anything explained a little more clearly :-)

This means: hash values can be references.

--
mzi
.

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