Question

"data": {
    "advance_amount": [],
    "collection_report": [
        {
            "value": 7,
            "date": "2018-07-10",
            "paid_amount": "3510",
            "totalAmount": 4550,
            "pending_amount": 990
        },
        {
            "value": 8,
            "date": "2018-08-01",
            "paid_amount": "1998",
            "totalAmount": 7255,
            "pending_amount": 3986
        },
        {
            "value": 9,
            "date": "2018-09-14",
            "paid_amount": "1157",
            "totalAmount": 2272,
            "pending_amount": 1046
        },
        {
            "advance_amount": "25"
        },
        {
            "advance_amount": null
        },
        {
            "advance_amount": "5225"
        }

这是我的回复。但是我想将这些预付金额附加在待处理金额之后的每个collection_report中。

通过这种方式

"value": 7,
"date": "2018-07-10",
"paid_amount": "3510",
"totalAmount": 4550,
"pending_amount": 990,
"advance_amount": 123,

Answer 1

$array= json_decode($json);
$array['collection_report'][0]['pending_amount']=25;
$array['collection_report'][1]['pending_amount']=null;
$array['collection_report'][2]['pending_amount']=5225;

这仅供您理解。将json转换回Array，遍历所有项（每个项都是一个数组），在数组中突出显示new key=>value

使用array_key_exists检查密钥是否存在。

Answer 2

首先使用json_decode（）函数以Array格式获取输出，然后通过简单的for循环即可完成以下任务，从而轻松实现这一目标：

$initialInput =  '
        {
            "advance_amount": [],
            "collection_report": [
                {
                    "value": 7,
                    "date": "2018-07-10",
                    "paid_amount": "3510",
                    "totalAmount": 4550,
                    "pending_amount": 990
                },
                {
                    "value": 8,
                    "date": "2018-08-01",
                    "paid_amount": "1998",
                    "totalAmount": 7255,
                    "pending_amount": 3986
                },
                {
                    "value": 9,
                    "date": "2018-09-14",
                    "paid_amount": "1157",
                    "totalAmount": 2272,
                    "pending_amount": 1046
                },
                {
                    "advance_amount": "25"
                },
                {
                    "advance_amount": null
                },
                {
                    "advance_amount": "5225"
                }
             ]
        }        
       ';

代码：

$initialInput = json_decode($initialInput, true);
           for($i = 0; $i < count($initialInput['collection_report'])/2;$i++) {
               $initialInput['collection_report'][$i]['advance_amount'] = $initialInput['collection_report'][count($initialInput['collection_report'])/2 + $i]['advance_amount'];
           }

最终输出：

array:2 [▼
  "advance_amount" => []
  "collection_report" => array:6 [▼
    0 => array:6 [▼
      "value" => 7
      "date" => "2018-07-10"
      "paid_amount" => "3510"
      "totalAmount" => 4550
      "pending_amount" => 990
      "advance_amount" => "25"
    ]
    1 => array:6 [▼
      "value" => 8
      "date" => "2018-08-01"
      "paid_amount" => "1998"
      "totalAmount" => 7255
      "pending_amount" => 3986
      "advance_amount" => null
    ]
    2 => array:6 [▼
      "value" => 9
      "date" => "2018-09-14"
      "paid_amount" => "1157"
      "totalAmount" => 2272
      "pending_amount" => 1046
      "advance_amount" => "5225"
    ]
    3 => array:1 [▼
      "advance_amount" => "25"
    ]
    4 => array:1 [▼
      "advance_amount" => null
    ]
    5 => array:1 [▼
      "advance_amount" => "5225"
    ]
  ]
]

在PHP中将对象追加到数组中

2 个答案: