Question

我有许多JSON，例如：

第1项：

{
    "countries_views": [
        {
            "thecount": "563",
            "country": "Greece"
        },
        {
            "thecount": "48",
            "country": "United States"
        },
        {
            "thecount": "11",
            "country": "Luxembourg"
        },
        {
            "thecount": "7",
            "country": "Germany"
        },
        {
            "thecount": "6",
            "country": "Cyprus"
        },
        {
            "thecount": "2",
            "country": "India"
        },
        {
            "thecount": "2",
            "country": "France"
        },
        {
            "thecount": "2",
            "country": "United Kingdom"
        },
        {
            "thecount": "1",
            "country": "Nigeria"
        },
        {
            "thecount": "1",
            "country": "Russia"
        }
    ]
}

第2项：

{
    "countries_views": [
        {
            "thecount": "1037",
            "country": "Greece"
        },
        {
            "thecount": "17",
            "country": "United States"
        },
        {
            "thecount": "17",
            "country": "Cyprus"
        },
        {
            "thecount": "12",
            "country": "Germany"
        },
        {
            "thecount": "11",
            "country": ""
        },
        {
            "thecount": "4",
            "country": "United Kingdom"
        },
        {
            "thecount": "4",
            "country": "Australia"
        },
        {
            "thecount": "2",
            "country": "Belgium"
        },
        {
            "thecount": "1",
            "country": "Russia"
        },
        {
            "thecount": "1",
            "country": "Argentina"
        }
    ]
}

等等！我需要做的是将1个数组中的数据与PHP 合并/合并，我需要添加重复项的值。最终结果应如下所示：

{
    "countries_views": [
        {
            "thecount": "**1600**",
            "country": "Greece"
        },
        {
            "thecount": "**65**",
            "country": "United States"
        },
        etcetcetc
    ]
}

Answer 1

首先解析JSON数据，然后我们遍历数组以找到重复项并添加它们。

<?php

// emit the code of parsing json. (see function json_decode)

$arr1 = [
    (object)['thecount' => 563, 'country' => 'Greece'],
    (object)['thecount' => 12, 'country' => 'US'],
    (object)['thecount' => 15, 'country' => 'UK'],
];

$arr2 = [
    (object)['thecount' => 1563, 'country' => 'Greece'],
    (object)['thecount' => 152, 'country' => 'CN'],
];

foreach ($arr1 as $each) {
    $exists = false;
    foreach ($arr2 as &$e) {
        if ($e->country == $each->country) {
            $e->thecount += $each->thecount;
            $exists = true;
        }
    }
    if (!$exists) {
        array_push($arr2, $each);
    }
}

$res = $arr2;

var_dump($res);

以下是如何在你的例子中获得$ arr1，$ arr2。

<?php
$arr1_obj = json_decode($item1);
$arr2_obj = json_decode($item2);
$arr1 = $arr1_obj->countries_views;
$arr2 = $arr2_obj->countries_views;

合并2个Json结果和计数特定值

1 个答案: