array of key value pairs?

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

I need to populate an array of key value pairs with the possiblity of having duplicate keys like so:

my $array_of_key_value_pairs = 
[
    item1 => $foo$,
    item2 => $bar$,
    item1 => $foo2,
]
[download]

I though the syntax would be something like this:

my $data;
...
push @$data, "$key => $value;
[download]

this doesn't seem to work...any thoughts

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Re: array of key value pairs? by chromatic (Archbishop) on Mar 18, 2008 at 19:27 UTC
Did you mean: `my $data = []; push @$data, $key => $value;` [download]	[reply] [d/l]
Re^2: array of key value pairs? by Anonymous Monk on Mar 18, 2008 at 19:38 UTC
that is exactly what I meant...it's working. Thanks	[reply]
Re: array of key value pairs? by FunkyMonk (Bishop) on Mar 18, 2008 at 21:38 UTC
You do know that an "array of key value pairs" is just a flat list, don't you? Consider... `my ( $foo, $bar, $foo2 ) = qw/foo bar foo2/; my $array_of_key_value_pairs = [ item1 => $foo, item2 => $bar, item1 => $foo2, ]; print Dumper $array_of_key_value_pairs;` [download] Output: `$VAR1 = [ 'item1', 'foo', 'item2', 'bar', 'item1', 'foo2' ];` [download]	[reply] [d/l] [select]
Re: array of key value pairs? by dragonchild (Archbishop) on Mar 19, 2008 at 01:57 UTC
You probably want to look at Tie::Hash::MultiValue instead. My criteria for good software: Does it work? Can someone else come in, make a change, and be reasonably certain no bugs were introduced?	[reply]