PHP列出了MySQL表中前10个最高值

I'm trying to list the top highest 10 values in my MySQL table.

I've tried this:

              $SQL = ("SELECT * Rating FROM download_manager ORDER BY Rating DESC LIMIT 10;");
              $results = mysqli_query($SQL);
              var_dump($results);

However that returns a NULL, also I'd need it to echo back two rows and not the whole table...

DB Structure: id | filename | downloads

I need to just echo back the top 10 highest downloads and the associated filename.

Update:

Rating is not the table, connection is done through a require connect. I've removed the () however still get a null.

Try that

$SQL = "SELECT Rating FROM download_manager ORDER BY Rating DESC LIMIT 10;";
              $results = mysqli_query($SQL);
              var_dump($results);