Question

我有这个JSON数组，我将其解码为PHP数组，并想查看每个类别中总共售出了多少

    [{
        "categorycode": "W0000000391",           
        "grosssalesprice": "50.00"
    },
    {
        "categorycode": "W0000000396",
        "grosssalesprice": "170.00"
    },
    {
        "categorycode": "W0000000391",
        "grosssalesprice": "50.00"
    },
    {            
        "categorycode": "W0000000391",
        "grosssalesprice": "55.00"
    }]

，并希望获得

{
    "categorycode": "W0000000391",           
    "grosssalesprice": "155.00"
},
{
    "categorycode": "W0000000396",
    "grosssalesprice": "170.00"
}

我尝试过，这给了我1个foreach元素入口，但是我如何追加这个数组中的每个项目呢？

foreach($jsonDecoded as $item) {            
            $sortedData[$item['categorycode']] = array(
            'Konto' => $item['categorycode'],
            'Beløb' => $item['grosssalesprice']
            );          
        }

Answer 1

$items = json_decode($json,true);
foreach($items as $item){
    if(empty($totalInCategory[$item['categorycode']])){
        $totalInCategory[$item['categorycode']] = 0.00;
    }
    $totalInCategory[$item['categorycode']] += $item['grosssalesprice'];
}
var_dump($totalInCategory);

应该这样做，并提出：

array(2) {
  ["W0000000391"]=>
  float(155)
  ["W0000000396"]=>
  float(170)
}

但是，要进一步匹配所需的格式：

foreach($items as $item){
    if(empty($totalInCategory[$item['categorycode']]['grosssalesprice'])){
        $totalInCategory[$item['categorycode']]['grosssalesprice'] = 0.00;
    }
    $totalInCategory[$item['categorycode']]['categorycode'] = $item['categorycode'];
    $totalInCategory[$item['categorycode']]['grosssalesprice'] += $item['grosssalesprice'];
}

但是键必须是唯一的，因此您可以像这样保留它们或在结果数组上运行sort()以将数组键重置为整数值

阵列和组中的产品总价

1 个答案: