Dereferencing ?

[Joe McGuckin]

If I have the following, how do I get to the members?

$servers = [{'hostname'=>'s ecure',
'description'=> 'www'},
{'hostname'=> 'www3',
'description'=> 'www'},
{'hostname'=>'w ww6',
'description'=> 'www'}.
{'hostname'=>'w ww10',
'description'=> 'www'},
{'hostname'=> 'mail',
'description'=> 'mail'}];


I used to have a simple list of servers and I would say something like:

foreach $i (@servers)

But now I want to associate more info with each server entry.

So, how can I get my list of servers to iterate over?

Thanks,

Joe

[Gunnar Hjalmarsson]

Re: Dereferencing ?

Joe McGuckin wrote:[color=blue]
> If I have the following, how do I get to the members?
>
> $servers = [{'hostname'=>'s ecure',
> 'description'=> 'www'},
> {'hostname'=> 'www3',
> 'description'=> 'www'},
> {'hostname'=>'w ww6',
> 'description'=> 'www'}.
> {'hostname'=>'w ww10',
> 'description'=> 'www'},
> {'hostname'=> 'mail',
> 'description'=> 'mail'}];[/color]

You have a reference to an array of hashes. Assuming that you correct
the typo, you can print them like this:

foreach my $server (@$servers) {
print "Host: $server->{hostname}, Desc: $server->{description}\ n";
}
[color=blue]
> I used to have a simple list of servers and I would say something
> like:
>
> foreach $i (@servers)
>
> But now I want to associate more info with each server entry.
>
> So, how can I get my list of servers to iterate over?[/color]

Read up on arrays of hashes at

http://www.perldoc.com/perl5.8.0/pod/perldsc.html

--
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl