CakePHP:渲染未定义的索引

Question

我调试了视图页面只是为了确认数据是否已正确收集.事实上,我有这个:

 [Friend] => Array
                (
                    [0] => Array
                        (
                            [id] => 2
                            [username] => James_Baker
                            [password] => 7pooplllLLKMKMKKkss09koskld1d9b5e6
                            [first_name] => James
                            [last_name] => Baker
                            [email] => D-W-James@yahoo.com
                            [group_id] => 2
                            [created] => 2011-01-10 08:25:52
                            [modified] => 2011-02-04 17:30:47
                            [slug] => 
                 ....
                 ....

当我尝试在我的视图页面上显示时,从我的view.ctp这里是我目前使用的:

..
<?php foreach ($users as $user): ?>

    <tr>
        <td><?php echo $user['Friend']['username']; ?></td>

    </tr>
<?php endforeach; ?>
..

但我收到这个错误:

Undefined index: username

有人可以根据我的调试代码修复错误吗？我正在尝试输出/回显朋友的用户名.

Answer 1

调用此值的正确键是 $user['Friend'][0]['username']

var_dump($user); exit;在开始每个循环后调试使用.

<?php foreach ($users as $user): ?>
     <h1>User Friends</h1>
     <?php foreach ($user['Friend'] as $friend): ?>
         <?php echo $friend['username']; ?>
     <?php endforeach; ?>
<?php endforeach; ?>