[sambah]

Try this.

		$db_select = @mysql_select_db($dbname,$db) or die('Mysql Database Failure');
 		$table_name = 'user';
 		$result = mysql_query("UPDATE  '.$table_name.' SET usergroupid = '9' WHERE userid = '" . $username . "' LIMIT 1") or die(mysql_error());

Sorry for the delay. I had to look that up on php.net

I only usually do databases, not PHP.

Let me know if it works