รบกวนสอบถามเกี่ยวกับการ query ข้อมูลจาก db หน่อยครับ

<?
//ob_start();
session_start();
header('Content-Type : text/html; charset=windows-874');
if ($_SESSION['sessionuser'] != '')
{
	$username = "$sessionuser";

	$nameSQL = "SELECT * FROM mytest WHERE username = '$username'";
	$namequery = mysql_query($nameSQL);
	if (mysql_num_rows($namequery)==1)
	{
		$FetchArray = mysql_fetch_array($namequery);
		mysql_fetch_array ($namequery);
		mysql_close();
	
		$level = $FetchArray['1'];
		if($level == 1)
		{
			include 'menu_admin.php';
		}
		else
		{
			include 'menu.php';
		}

	}
	
	include "search-html.php";
}
else
{
	include "alert.php";
}
?>