dd（）读取var_dump（）无法读取的值(dd() reads values that var_dump() can't read)

 在我的一个控制器中，我使用变量$members调用一个视图： 
 
$members = Member::orderBy("created_at", "desc")->get();
 
 然后在视图中我遍历所有成员的组： 
 
@foreach ($members as $group)
    <?php $group = $group->group(); ?>
    <b>{{ $group->title }}</b> // fails
@endforeach
 
 这会抛出一个Trying to get property of non-object异常的Trying to get property of non-object 。 如果我做 
 
@foreach ($member as $group)
    <?php $group = $group->group(); ?>
    <?php dd($group); ?>       // works
    <b>{{ $group->title }}</b> // fails
@endforeach
 
 我可以看到所有attributes数组都填充了我想要的所有值。 为什么dd()读取我无法使用{{ $var }}读取的值？ 
 
 
@foreach ($member as $group)
    <?php $group = $group->group(); ?>
    <?php var_dump($group); ?> // fails
    <b>{{ $group->title }}</b> // fails
@endforeach
 
 也失败了。 

In one of my controllers I call a view with the variable $members:
 
$members = Member::orderBy("created_at", "desc")->get();
 
Then in the view I loop over all the member's groups:
 
@foreach ($members as $group)
    <?php $group = $group->group(); ?>
    <b>{{ $group->title }}</b> // fails
@endforeach
 
This throws a Trying to get property of non-object exception. If I do
 
@foreach ($member as $group)
    <?php $group = $group->group(); ?>
    <?php dd($group); ?>       // works
    <b>{{ $group->title }}</b> // fails
@endforeach
 
I can see all the attributes array populated with all the values I want. Why can dd() read values I can't read using {{ $var }}?
 
 
@foreach ($member as $group)
    <?php $group = $group->group(); ?>
    <?php var_dump($group); ?> // fails
    <b>{{ $group->title }}</b> // fails
@endforeach
 
fails as well.

原文：https://stackoverflow.com/questions/32300334