You are assigning a single key/value pair to $key and $value, then making a list of 2 elements out of that list, then iterating over that list of 2 elements.

The next time you call each you'll get the next pair out of the hash.

The usual way to do what you likely want is: 

foreach my $key (keys %$hash_ref) {
    my $value = $hash_ref->{$key};
    ...
}

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In reply to Re: What is happening ? by tilly
in thread problem using foreach and each with hash ref by vinoth.ree

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