php Laravel 在数组错误时调用成员函数 toArray()
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Laravel Call to a member function toArray() on array Error
提问by jhamPac
I was hoping someone could possibly clear up a little confusion I've been having with this Error. So here is my code. (note) the User model has a hasMany relationship to Image
我希望有人可以解决我一直对这个错误产生的一些困惑。所以这是我的代码。(注意) User 模型与 Image 有 hasMany 关系
$user = User::with('profile')->whereUsername($username)->firstOrFail();
$images = $user->images->all();
dd($user->toArray());
My confusion is dd($user->toArray()); works perfectly fine. But when I try this dd($images->toArray()) I get a Call to a member function toArray() on array. This has been killing me for a while. $user and $images are both objects but toArray() only works on $user. Also, $images[0]->toArray() works fine too so that just adds to the confusion.
我的困惑是 dd($user->toArray()); 工作得很好。但是当我尝试这个 dd($images->toArray()) 时，我得到了一个对数组成员函数 toArray() 的调用。这已经杀了我一段时间了。$user 和 $images 都是对象，但 toArray() 仅适用于 $user。此外， $images[0]->toArray() 也能正常工作，因此只会增加混乱。
回答by geoandri
I think this happens because $images is a collection of objects not an object like $user. Check querying-relationsin the documentation the red area in the end of that section. That explains why $images[0]->toArray() works fine.
我认为这是因为 $images 是对象的集合，而不是像 $user 这样的对象。检查文档中该部分末尾的红色区域中的查询关系。这解释了为什么 $images[0]->toArray() 工作正常。
