问从对象数组中获取所有密钥x (php，laravel blade)

EN

[
{"id":92,"product_id":8966,"extra_type":"Extras","extra_name":"Olives"},

{"id":93,"product_id":8966,"extra_type":"Extras","extra_name":"Ketchup"},

{"id":92,"product_id":8966,"extra_type":"Extras","extra_name":"Olives"}
]

@foreach($item->orderedProducts as $op)
<tr>
     <td>
         <span>{{ $op['extras'] }}</span><br>
     </td>
</tr>
@endforeach

{
  "id": 171,
  "product_id": 8966,
  "order_id": 175,
  "price": 11,
  "count": 1,
  "product_data": "{\"id\":8966,\"name\":\"Camera Br\\u00fbl\\u00e9e\",\"description\":\"Lorem ipsum dolor sit amet consectetur adipiscing elit etiam, conubia tempus sed dapibus augue gravida accumsan. Odio congue in blandit iaculis risus gravida parturient dictum quis rhoncus volutpat ornare tincidunt, dignissim ut pellentesque.\",\"price\":11,\"price_old\":null,\"category_id\":4584,\"created_at\":\"2019-03-17 14:59:56\",\"updated_at\":\"2019-04-17 16:37:03\",\"tax_group_id\":null,\"sort\":1,\"vendor_id\":null,\"option1\":null,\"option2\":null,\"option3\":null,\"option4\":null,\"option5\":null,\"option6\":null,\"images\":[\"http:\\/\\/localhost:8000\\/product_images\\/ElI9GImttc.jpg\"],\"formatted_price\":\"\\u00a311\",\"formatted_old_price\":\"0\",\"tax_value\":0,\"city_id\":null,\"restaurant_id\":null,\"product_images\":[{\"id\":9000,\"image\":\"\\/product_images\\/ElI9GImttc.jpg\",\"product_id\":8966,\"created_at\":\"2019-04-08 15:16:53\",\"updated_at\":\"2019-04-08 15:16:53\"}],\"tax_group\":null,\"category\":{\"id\":4584,\"name\":\"Random Things\",\"_lft\":1,\"_rgt\":2,\"parent_id\":null,\"created_at\":\"2018-11-09 13:15:01\",\"updated_at\":\"2019-04-17 16:47:21\",\"restaurant_id\":null,\"city_id\":null,\"category_image\":null,\"has_children\":0,\"image_url\":\"http:\\/\\/localhost:8000\\/category_images\\/a64be5a696402b0fe3649536ab6a49e4_1555519641.jpg\"},\"added\":true}",
  "extras": "[{\"id\":93,\"product_id\":8966,\"extra_type\":\"Extras\",\"extra_name\":\"Ketchup\",\"extra_price\":\"1.20\",\"extra_added\":true,\"price_sum\":1.2,\"extra_count\":1}]",
  "exclusions": "[{\"id\":117,\"product_id\":8966,\"extra_type\":\"Exclusions\",\"extra_name\":\"Rat poison\",\"extra_price\":null,\"exclusion_added\":true}]",
  "created_at": "2019-04-27 10:35:11",
  "updated_at": "2019-04-27 10:35:11",
  "product": {
    "id": 8966,
    "name": "Camera Brûlée",
    "description": "Lorem ipsum dolor sit amet consectetur adipiscing elit etiam, conubia tempus sed dapibus augue gravida accumsan. Odio congue in blandit iaculis risus gravida parturient dictum quis rhoncus volutpat ornare tincidunt, dignissim ut pellentesque.",
    "price": 11,
    "price_old": null,
    "category_id": 4584,
    "created_at": "2019-03-17 14:59:56",
    "updated_at": "2019-04-17 16:37:03",
    "tax_group_id": null,
    "sort": 1,
    "vendor_id": null,
    "option1": null,
    "option2": null,
    "option3": null,
    "option4": null,
    "option5": null,
    "option6": null,
    "images": [
      "http://localhost:8000/product_images/ElI9GImttc.jpg"
    ],
    "formatted_price": "£11",
    "formatted_old_price": "0",
    "tax_value": 0,
    "city_id": null,
    "restaurant_id": null,
    "product_images": [
      {
        "id": 9000,
        "image": "/product_images/ElI9GImttc.jpg",
        "product_id": 8966,
        "created_at": "2019-04-08 15:16:53",
        "updated_at": "2019-04-08 15:16:53"
      }
    ],
    "tax_group": null,
    "category": {
      "id": 4584,
      "name": "Random Things",
      "_lft": 1,
      "_rgt": 2,
      "parent_id": null,
      "created_at": "2018-11-09 13:15:01",
      "updated_at": "2019-04-17 16:47:21",
      "restaurant_id": null,
      "city_id": null,
      "category_image": null,
      "has_children": 0,
      "image_url": "http://localhost:8000/category_images/a64be5a696402b0fe3649536ab6a49e4_1555519641.jpg"
    }
  }
}