非法字符串偏移量和试图获取非对象的属性(laravel 5.3)

Question

所以我在刀片中打印数据来自控制器的结果时遇到了问题，所以：

1. 使用控制器.php ：

   $expertCategory = Category::getCategoryByID($user_id);
   $data = [ 'expertCategory' => $expertCategory ];
   return view('cms.user.edit', $data);
   

Category

2. .php (models( getCategoryByID($user_id( 返回结果数组，如果 i dd(expertCategory(; in 控制器，其结果为：

   array:9 [▼
   "id" => 1
   "name" => "Beauty"
   "sequence" => 1
   "background_color" => "ffffff"
   "status" => "Active"
   "created_at" => "2017-06-19 09:41:38"
   "updated_at" => "2017-06-19 09:41:38"
   "icon_filename" => "beauty-icon"
   "iconURL" => array:3 [▼
   "small" => "http://localhost:8000/images/category_icons/small/beauty-icon"
   "medium" => "http://localhost:8000/images/category_icons/medium/beauty-icon"
   ]
   ]
   

3. 但是当我想在刀片中使用foreach打印结果时.php使用代码：

   @foreach($expertCategory as $expertCat)
   {{ $expertCat->id }}
   @endforeach
   

将返回错误"尝试获取非对象的属性">

如果我使用这样的代码：

@foreach($expertCategory as $expertCat) {{ $expertCat['id'] }} @endforeach

它将返回："非法字符串偏移量'id'">

任何人都可以帮助解决这个问题：s？ 非常感谢！

Answer 1

由于$expertCategory是一个dimensional array您面临此问题

只需替换此

$expertCategory = Category::getCategoryByID($user_id);
$data = [ 'expertCategory' => $expertCategory ];
return view('cms.user.edit', $data);

跟

$expertCategory = Category::getCategoryByID($user_id);
$data = [ 'expertCategory' => [$expertCategory] ];
return view('cms.user.edit', $data);

然后使用

@foreach($expertCategory as $expertCat)
{{ $expertCat['id'] }}
@endforeach

在您的刀片中，它将为您工作。