php,while中使用mysql查询语句问题

Question

php的mysql查询语句可不可以这样用呢？

$query = "SELECT name FROM bank WHERE area LIKE 'aaa'";

$result = mysql_query($query) or die(mysql_error());

while($row = mysql_fetch_array($result)) {

    $http = $row['http'];

    $task_query = "SELECT * FROM task WHERE link LIKE'%$http%'";

    $task_result = mysql_query($task_query) or die(mysql_error());

    while($task = mysql_fetch_array($task_result));

            echo $task['high'].'<br />';

    }