Accessing Element in a Hash Reference

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

I've searched and read all over but can't figure this out.

I have this "$hash_ref" that comes from a DB query using "$dbh->selectall_hashref" in the DBI.

As seen from Data::Dumper this is my data:

$VAR1 = { '1' => { 'PointType' => 'Camera', 'idType' => '1' }, '2' => 
+{ 'PointType' => 'School', 'idType' => '2' } };
[download]

If I want to just get the "PointType" by knowing the "idType" how would I do that?

I've guessed $hash_ref{'1'} or $hash_ref->{'1'} hoping to get "Camera" back but it doesn't work.

How do I do this, I'm lost?

Comment on Accessing Element in a Hash Reference Download Code

Replies are listed 'Best First'.
Re: Accessing Element in a Hash Reference by Zaxo (Archbishop) on Sep 14, 2005 at 07:42 UTC
Close, `$hash_ref->{'1'}->{'PointType'}` or `$hash_ref->{'1'}{'PointType'}` You have two levels, so you need two keys. After Compline, Zaxo	[reply] [d/l] [select]
Re^2: Accessing Element in a Hash Reference by awohld (Hermit) on Sep 14, 2005 at 07:53 UTC
Wow, I guessed a structure close to that, my beginners Perl books don't have that info in them, maybe I'm finally getting out of "beginners" mode. :) Thanks	[reply]