Re: Hash of hash check if defined

in reply to Hash of hash check if defined

Autovivification.

Change...

if(exists $ulm_keys{$h_tag}{$h_val}){....
[download]

... to ...

if( 
    exists $ulm_keys{$h_tag} and 
    exists $ulm_keys{$h_tag}{$h_val}
) { ...
[download]

...and see if that fixes things. What's happening is that currently as you test for the existance of $h_val, $h_tag is created automatically whether or not $h_val exists.

Here is Uri Gutman's tutorial on the subject.

Dave

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Re^2: Hash of hash check if defined by Jup (Novice) on Feb 21, 2012 at 16:25 UTC
Hi Dave thanks for your quick answer. I don't think this is an autovivification issue as I've already try the following without any success : `if(exists $ulm_keys{$h_tag} && defined $ulm_keys{$h_tag}{$h_val}){` But I will try to check with 2 exists, just in case. Thanks again for your answer.	[reply] [d/l]

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