keys %{quantum{$id}} returns a list of key names not references, so $a->{...} doesn't make any sense in that sort. Have a look at the help for keys for an example of how to sort by key. I'm not sure what you are trying to do , so I can't suggest how to fix it. How about showing us some sample data and what results you expect?

In reply to Re: Can't use string as a HASH ref by RichardK
in thread Can't use string as a HASH ref by tentacoolstuff

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