<code>
$DBX=DB::connect($DSN);
$SQL="INSERT INTO League_Base (`?`) VALUES ('?')";
$params=array('zh-twName','foo');
$stmt=$DBX->prepare($SQL);
$Result=$DBX->execute($stmt,$params);
if(DB::isError($Result)) $Message='ERROR';
else $Message='OK';
echo $Message;
</code>

it always show 'ERROR'.
When I change DataBase Field Name from `zh-twName` to `Name`,
it show 'OK'...
now, I use another way to do it...

<code>
  $DBX=DB::connect($DSN);
  $SQL="INSERT INTO League_Base (`%s`) VALUES ('%s')";
  $SQL=sprintf($SQL,'zh-twName','foo');
  $Result=$DBX->query($SQL);
  if(DB::isError($Result)) $Message='ERROR';
  else $Message='OK';
  echo $Message;
</code>
it's OK...