require Encode; # needs to be done only once in the beginning
sub _utf8_on_all_arrayref {
 
# For all the records specified
#  Switch on the UTF-8 flag for all values
# Return the original reference

    foreach (@{$_[0]}) {
        Encode::_utf8_on( $_ ) foreach @{$_};
    }
    $_[0];
} #_utf8_on_all_arrayref