Loop reference to value in hash of hash

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

Hi all

Quick question- How do I reference a value in a hash in a hash, while I'm in a foreach loop?

foreach my $x (values %hash{}{})
{
 #do something
}
[download]

I'm really not sure how its supposed to work and I can't find something similar on the web

Comment on Loop reference to value in hash of hash Download Code

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Re: Loop reference to value in hash of hash by choroba (Cardinal) on Jul 31, 2013 at 08:54 UTC
`%hash{}{}` is a syntax error. Did you have this in mind? `for my $x (values %hash) { print $x->{inner_key}; }` [download] If not, please be more specific. لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply] [d/l] [select]
Re: Loop reference to value in hash of hash by Loops (Curate) on Jul 31, 2013 at 08:51 UTC
Hi there, not really sure what you're asking. In your example, the variable $x will hold the current iteration value taken from the hash. Do you need another value from the hash? If so what is it you want? * oops, ignoring the syntax error noted by choroba	[reply]
Re: Loop reference to value in hash of hash by Anonymous Monk on Jul 31, 2013 at 09:01 UTC
Dr Manhattan -> Dr Manhattan's writeups -> Parse txt file into array of array -> perldsc -> Print from array element to another array element -> perldata#HASHES OF HASHES Tutorials: Perl documentation documentation, Searching Perl Documentation, How to RTFM	[reply]
Re: Loop reference to value in hash of hash by Anonymous Monk on Jul 31, 2013 at 12:24 UTC
`foreach my $x (values %{ $hash{somekey}{otherkey} } ) { }` [download]	[reply] [d/l]