The problem is with your data. What you might think are duplicate keys aren't really (the code which you showed would not do what you say, so $key must not be what you think it should be).

use Data::Dumper and print Dumper\%matrixhash to see what's actually in there. I'm guessing you have stray whitespace.

MJD says you can't just make shit up and expect the computer to know what you mean, retardo!
** The Third rule of perl club is a statement of fact: pod is sexy.

In reply to Re: checking keys exist in 1 key:multiple value situation by PodMaster
in thread checking keys exist in 1 key:multiple value situation by basm101

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