Question

在Laravel视图中未定义的偏移量：0

我说之前有问题

期望参数1中的数组，但给出了对象

，然后通过->toArray进行修复。然后出现了这个问题

public function index()
    {
        $products = Product::paginate(3)->toArray();

        return view ('inventory.layout', [
            'products' => $products
        ]);
    }

这是在查看文件中显示我的产品我试图用['data']字符串替换0键，但是没用。

  @if (isset($products)) 
        @if ($arrkeys = array_keys($products[0])) 
            @foreach ($arrkeys as $key)  
                <th>{{$key}}</th>
            @endforeach
        @endif 
   @endif

Answer 1

如果您需要显示分页，请使用以下代码

public function index()
    {
        $products = Product::paginate(3);

        return view ('inventory.layout', [
            'products' => $products
        ]);
    }



And this is to show my products in view file
I've tried to replace the 0 key with ['data'] string but useless.



  @if (isset($products)) 
           @foreach ($products as $key)  
                <th>{{$key}}</th>
            @endforeach
    //for pagination
    <div>{{$products->links()}}</div>
  @endif

Answer 2

如果要显示数组的键，请尝试以下操作：

  @if (isset($products))
      @foreach ($products as $key => $value)  
            <th>{{$key}}</th>
      @endforeach
  @endif

但是如果要显示值：

  @if (isset($products))
      @foreach ($products as $key => $value)  
            <th>{{$value}}</th>
      @endforeach
  @endif

在Laravel中，“未定义的偏移量：0”

2 个答案: