@{$data{$ip}}{@field_names} = [$fields];

[download]
That line is an error. You're saying that a slice of a hash reference is set equal to an array reference (whose only element is an array reference, I might add). Better would be: 
@{$data{$ip}}{@field_names} = @$fields;

[download]
Now, you still have a problem with 
my $fields = [@cname, @ports, @banners];

[download]
You're saying that you want to create an array reference, pointing to an array of elements from the three arrays in order. I suspect you really want: 
my @fields = (\@cname, \@ports, \@banners);

[download]
Thus, the complete code would be: 
 my @fields = (\@cname, \@ports, \@banners);
 
 @{$data{$ip}}{@field_names} = @fields;

[download]
That should do what you want. :-)

------
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Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.

In reply to Re: Which Data Structure Should I Be Using? by dragonchild
in thread Which Data Structure Should I Be Using? by dru145

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