##
my @users=User->new($id1,$id2,$id3,$id4);
####
sub new {
my $proto = shift(@_);
my $userId=shift(@_);
my $class = ref($proto) || $proto;
my $self = {
"user_id"=> undef,
"user_name" => undef
};
bless ($self, $class);
my $href = GETSQL("SELECT user_name FROM users WHERE user_id = $userId");
@{$self}{keys %{$href}} = values %{$href};
return $self;