สอบถามในการเขียนตารางแบบนี้ค่ะ ไม่รู้เขียนเรียงลำดับยังไงดี

$sql = "select distinct level  from table order by leavel asc";
$query = mysql_query($sql);
while($result= mysql_fetch_array($query))
{
	echo "Level : ".$result["level"];

		$sql2 = "select *  from table where level = '".$result["level"]."' ";
		$query2 = mysql_query($sql2);
		while($result2= mysql_fetch_array($query2))
		{
			echo $result2["name"]."-".$result2["email"];
		}
}

SELECT * FROM table ORDER BY level ASC

$c = null;
while()
{
    if($c != null)
    {
        echo $row['level'];
        $c = $row['level'];
    }
echo $row['name'].' '.$row['email'];
}