如果我向某人或某人发送消息，我想按ID desc显示类似不同用户的Messenger的名称

Question

如果我向我发送消息或某人消息，我想按ID顺序按列表顺序显示除我以外的其他用户的名称

$resl_msg1 = mysqli_query($connection,"select ruid  from messenger where uid = '".$_SESSION['id']."' union select uid from messenger where ruid = '".$_SESSION['id']."'  " );


$resl_msg1 = mysqli_query($connection,"select ruid  from messenger where uid = '".$_SESSION['id']."' union select uid from messenger where ruid = '".$_SESSION['id']."'  " );
            i want to get the distinct users order by id desc