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Re: Re: Re: Hashing multiple items

by Anonymous Monk
on Nov 15, 2003 at 17:43 UTC ( [id://307341]=note: print w/replies, xml ) Need Help??


in reply to Re: Re: Hashing multiple items
in thread Hashing multiple items

I actually want to do thngs the other way around. I want to have the zone as the key. So that I could say, print out out all the coorsinates in zone B1. Doing this -
$coordinates{$zone} = $a1,$a2,$b1,$b2)
will only allow my to save one coordinate for a particular zone. How do I save an arbitary bumber of coordinates for each zone?

Replies are listed 'Best First'.
Re: Re: Re: Re: Hashing multiple items
by CombatSquirrel (Hermit) on Nov 15, 2003 at 17:54 UTC
    Use an anonymous array as value: 
    $coordinates{$zone} = [ $a1, $a2, $b1, $b2 ];

    [download]
    Don't forget to dereference it when you read your coordinates back out: 
    ($a1, $a2, $b1, $b2) = @{$coordinates{$zone}}

    [download]
    Have a look at perlref and perlreftut.
    Hope this helped.
    CombatSquirrel.
    Entropy is the tendency of everything going to hell.
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