I have problem with my code "UNDEFINED INDEX" - laravel

Question

There is link to my previous problem where is code,maybe it helps you
Parse error: syntax error, unexpected '__construct' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST)
this is problem i get
Undefined index: item (View: C:\xampp\htdocs\laravel\resources\views\shoppingCart.blade.php)
this error is there <strong><?php echo e($product['item']['name']); ?></strong>
this is my route
Route::get('shoppingCart', 'WebController#shoppingCart')->name('get.shoppingCart');
this is in my webcontroller
public function shoppingCart(){
if(!Session::has('cart')){
return view('shoppingCart');
}
$oldCart = Session::get('cart');
$cart = new Cart($oldCart);
return view('shoppingCart',['products'=>$cart->items]);
}
this is link for cart
<li>CART <span class="badge">{{Session::has('cart') ? '!' : ''}}</span></li>
And this is my code for shoppingCart
#extends('layouts.main')
#section('content')
#if(Session::has('cart'))
<div>
<div>
<ul class="list-group">
#foreach($products as $product)
<li class="list-group-item"></li>
<strong>{{$product['item']['name']}}</strong>
<li>Odstrániť</li>
#endforeach
</ul>
</div>
</div>
#else
<div>
<h2>V košíku nemáš žiadne položky!!!</h2>
</div>
#endif
#endsection

Answer 1

Firstly you can check if you have data or not on $cart->items while writing dd($cart->items); on the your function . Follow my comments .
public function shoppingCart(){
if(!Session::has('cart')){
return view('shoppingCart');
}
$oldCart = Session::get('cart');
$cart = new Cart($oldCart);
//dd($cart->items) /*uncomment this and check if you have data or not if you have no then problem is */
return view('shoppingCart',['products'=>$cart->items]); /* on the other if you have data dont forget those line and look at my comment on blade.php */
}
Your blade.php
#extends('layouts.main')
#section('content')
#if(Session::has('cart'))
<div>
<div>
<ul class="list-group">
#foreach($products as $product)
<li class="list-group-item"></li>
<strong>{{$product['item']['name']}}</strong>
<!--Look at here you remembe you were add products writing `['products'=>$cart->items]` then you be care calling your datas first you be relay on your codes you are working array (it seems you are working with objects then you need to call it $products->item->name Secondly you remember on the function you were add your data `['products'=>$cart->items]` like this if there is no child items object on $cart->items then you need to call it like
foreach($products as $product))
{
echo $product->name; //if it is array then echo $product['name'];
}
-->
<li>Odstrániť</li>
#endforeach
</ul>
</div>
</div>
#else
<div>
<h2>V košíku nemáš žiadne položky!!!</h2>
</div>
#endif
#endsection