In Perl's hashes, keys mush be unique. When you define the hash, each repeated key just overwrites the older value. In the real situation, you are probably getting the keys and values from something else than the source code itself, so you can concatenate the values: 
while (get_tuple($key,$value)) {
    $hash{$key} .= $value;
}

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In reply to Re: question related to hash by choroba
in thread question related to hash by viktor

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