Laravel试图在对象中获取非对象的属性(Laravel trying to get property of non-object in an object)

 简单的代码不起作用！ 我一直收到错误尝试使用if语句获取非对象的属性 。 我尝试像数组一样访问它，我收到一条消息，说它无法访问stdClass作为数组。 
 
    public function isAllowed($perm)
    {
       $cando = 0;
       $groups = DB::table('group_user')->where('user_id', $this->id)->get();

       foreach ($groups as $mygroup)
       {
          $group_can = DB::table('group_permission')->where([
            ['permission_id', $permission->id],
            ['group_id', $mygroup->group_id]
          ])->first();

          $setting = $group_can->setting; // Error returns for this line // 

          if ($setting > $cando)
          {
            $cando = $setting;
          }
        }
     }
 
 $ group_can的print_r，var_dump和dd给出： 
 
stdClass Object
(
    [group_id] => 1
    [permission_id] => 50
    [setting] => 1
)
object(stdClass)#555 (3) { ["group_id"]=> int(1) ["permission_id"]=> int(50) ["setting"]=> int(1) }
{#555 ▼
  +"group_id": 1
  +"permission_id": 50
  +"setting": 1
}
 
 使用$ setting = $ group_can-> setting; 返回错误尝试获取非对象的属性 
 
 使用$ setting = $ group_can ['setting']; 返回错误不能使用stdClass类型的对象作为数组 
 
 laravel错误的细节是： 
 
 
 
 at HandleExceptions-> handleError（8，'试图获取非对象的属性'，'/ home / mwsubmissions/public_html/jon/MWSubmissionManager/app/User.php'，91，array（'perm'=>'manage。 projects'，'cando'=> 1，'groups'=> object（Collection），'permission'=> object（stdClass），'mygroup'=> object（stdClass），'group'=> null，'group_can' => null，'setting'=> 1）） 
 
 
 编辑我删除了我遇到错误的代码的第一部分，然后得到了这个，同样的事情的另一个例子，但使用一个较小的对象，这一行比上一个更重要。 更新所有细节。 

Simple code will not work! I keep getting the error Trying to get property of non-object on the line with the if statement. I tried accessing this like an array I get a message saying it can't access a stdClass as an Array.
 
    public function isAllowed($perm)
    {
       $cando = 0;
       $groups = DB::table('group_user')->where('user_id', $this->id)->get();

       foreach ($groups as $mygroup)
       {
          $group_can = DB::table('group_permission')->where([
            ['permission_id', $permission->id],
            ['group_id', $mygroup->group_id]
          ])->first();

          $setting = $group_can->setting; // Error returns for this line // 

          if ($setting > $cando)
          {
            $cando = $setting;
          }
        }
     }
 
print_r, var_dump, and dd of $group_can give this:
 
stdClass Object
(
    [group_id] => 1
    [permission_id] => 50
    [setting] => 1
)
object(stdClass)#555 (3) { ["group_id"]=> int(1) ["permission_id"]=> int(50) ["setting"]=> int(1) }
{#555 ▼
  +"group_id": 1
  +"permission_id": 50
  +"setting": 1
}
 
Using $setting = $group_can->setting; returns the error Trying to get property of non-object
 
Using $setting = $group_can['setting']; returns the error Cannot use object of type stdClass as array
 
The details of the laravel error are: 
 
 
 
at HandleExceptions->handleError(8, 'Trying to get property of non-object', '/home/mwsubmissions/public_html/jon/MWSubmissionManager/app/User.php', 91, array('perm' => 'manage.projects', 'cando' => 1, 'groups' => object(Collection), 'permission' => object(stdClass), 'mygroup' => object(stdClass), 'group' => null, 'group_can' => null, 'setting' => 1))
 
 
EDIT I removed the first part of the code that I was having errors with and then got to this, another example of the same thing, but using a smaller object and this line is more important than the last was. All details updated.

原文：https://stackoverflow.com/questions/46188186