PHP中的foreach对象数组

Posted 2023-03-15

【中文标题】PHP中的foreach对象数组

【英文标题】：Foreach array of objects in PHP

【发布时间】：2021-04-14 10:24:20

【问题描述】：

我正在尝试组合来自两个表的数据以获取然后转换为 JSON 数据。我希望数据格式类似于：

[
   
    "designs" : [
                
                "id": 6,
                "product_id": 2,
                "sku": "2648",
                "size": "5*4",
                "materialType": "Aluminum",
                ,
                
                  "id": 7,
                  "product_id": 2,
                  "sku": "1234",
                  "size": "10*4",
                  "materialType": "Wood",
                
            ],
    "id": 2,
    "category_id": 5,
    "product_name": "Restricted Area Sign",
    "price": 1000,
    "category_name": "Medical Safety"
  
]

在 Laravel 中使用以下代码：

    $products = Product::get();
    foreach($products as $key => $val) 
        $category_name = Category::where(['id' => $val->category_id])->first();
        $products[$key]->category_name = $category_name->name;
        $attributes=ProductsAttribute::where(['product_id' => $val->id])->get();            
        foreach($attributes as $attr => $attrValue)
             $products[$key][$attr] = $attrValue;                            
        
    

    $products = json_decode($products);
    return $products;

但我却收到了这样的回复：

[
  
    "0": 
      "id": 6,
      "product_id": 2,
      "sku": "2648",
      "size": "5*4",
      "materialType": "Aluminum",
    ,
    "1": 
      "id": 7,
      "product_id": 2,
      "sku": "1234",
      "size": "10*4",
      "materialType": "Wood",
    ,
    "id": 2,
    "category_id": 5,
    "product_name": "Restricted Area Sign",
    "price": 1000,
    "category_name": "Medical Safety"
  ]

无论如何要使用键而不是具有不同对象的键来推送数组？ 谢谢。

【参考方案1】：

我做到了：

public function viewProductsApi(Request $request)
    $products = Product::get();
    foreach($products as $key => $val) 
        $category_name = Category::where(['id' => $val->category_id])->first();
        $products[$key]->category_name = $category_name->name;
        $attributes=ProductsAttribute::where(['product_id' => $val->id])->get();
        $products[$key]->desings = $attributes;
    

    $products = json_decode($products);
    return $products;