Question

我的问题是一个数组，该数组存储插入购物车中的所有项目。购物车商品具有以下结构：

array:3 [▼
  1 => array:7 [▼
    "id" => 1
    "name" => "Listing Sample 1"
    "quantity" => "1"
    "price" => 145.5
    "photo" => null
    "seller" => 1
    "buyer" => 3
  ]
  4 => array:7 [▼
    "id" => 3
    "name" => "Sample Listing 3"
    "quantity" => 1
    "price" => 50.5
    "photo" => null
    "seller" => 4
    "buyer" => 3
  ]
  2 => array:7 [▼
    "id" => 4
    "name" => "Sample Listing 4"
    "quantity" => 1
    "price" => "30.50"
    "photo" => null
    "seller" => 2
    "buyer" => 3
  ]
]

我已经尝试过以下解决方案： Sum of subarray values， php array group， http://sandbox.onlinephpfunctions.com/code/3db42a4e13464eb027d85549f897a313fb8250eb

此结果是由以下代码产生的：

        ($arr = session()->get('cart'));

        $newarray = array();
        foreach($arr as $ar) {

                foreach ($ar as $k => $v) {

                    if (array_key_exists($v, $newarray))
                        $newarray[$v]['price'] = $newarray[$v]['price']  + $ar['price'] ;
                    else if ($k == 'seller')
                        $newarray[$v] = $ar;
                }
            }

我想做的是： -更改每个商品的价格数量> 1。 -同时，将来自相同的卖方。

（因此数组中存储了多个相同的项目）。我认为可以执行以下操作：

if($ar['quantity'] > 1){
                        $newarray[$v]['price'] = $newarray[$v]['price'] * $ar['quantity'] + $ar['price'] * $ar['quantity'];
}

数量大于1的商品的所需结果为：

array:3 [▼
  1 => array:7 [▼
    "id" => 1
    "name" => "Listing Sample 1"
    "quantity" => "1"
    "price" => 145.5
    "photo" => null
    "seller" => 1
    "buyer" => 3
  ]
  4 => array:7 [▼
    "id" => 3
    "name" => "Sample Listing 3"
    "quantity" => 3
    "price" => 151.5
    "photo" => null
    "seller" => 4
    "buyer" => 3
  ]
  2 => array:7 [▼
    "id" => 4
    "name" => "Sample Listing 4"
    "quantity" => 2
    "price" => "61"
    "photo" => null
    "seller" => 2
    "buyer" => 3
  ]
]

我认为有效的解决方案是@mickmackusa在PHPSandbox中找到的一个示例提出的解决方案 http://sandbox.onlinephpfunctions.com/code/3db42a4e13464eb027d85549f897a313fb8250eb

对多维数组（php）中的值求和和相乘

0 个答案: