Php 在另一个值相等的数组中查找值之和
这是我拥有的数组，它是JSON格式的，但我也计算出了PHP版本：Php 在另一个值相等的数组中查找值之和,php,arrays,json,sum,Php,Arrays,Json,Sum,这是我拥有的数组，它是JSON格式的，但我也计算出了PHP版本： [{"client":"LawCapital ","placementID":"592952","creativeID":"728x90","dimensions":"728x90","impressions":39581,"bxd":4.854581,"viewable_impressions":11319,"exposure":54949,"viewability_rate":28.5970535,"clicks":344,"
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[impressions] => 31148
[bxd] => 4.58673525
[viewable_impressions] => 7373
[exposure] => 33818
[viewability_rate] => 23.6708622
[clicks] => 316
[mouse_overs] => 3495
)
[2] => Array
(
[client] => LawCapital
[placementID] => 592950
[creativeID] => 160x600
[dimensions] => 160x600
[impressions] => 17538
[bxd] => 4.94013739
[viewable_impressions] => 4076
[exposure] => 20136
[viewability_rate] => 23.240963
[clicks] => 136
[mouse_overs] => 1792
)
Array
(
[0] => Array
(
[client] => LawCapital
[placementID] => 592952
[creativeID] => 728x90
[dimensions] => 728x90
[impressions] => 39581
[bxd] => 4.854581
[viewable_impressions] => 11319
[exposure] => 54949
[viewability_rate] => 28.5970535
[clicks] => 344
[mouse_overs] => 4209
)
[1] => Array
(
[client] => LawCapital
[placementID] => 592951
[creativeID] => 300x250
[dimensions] => 300x250
[impressions] => 31148
[bxd] => 4.58673525
[viewable_impressions] => 7373
[exposure] => 33818
[viewability_rate] => 23.6708622
[clicks] => 316
[mouse_overs] => 3495
)
[2] => Array
(
[client] => LawCapital
[placementID] => 592950
[creativeID] => 160x600
[dimensions] => 160x600
[impressions] => 17538
[bxd] => 4.94013739
[viewable_impressions] => 4076
[exposure] => 20136
[viewability_rate] => 23.240963
[clicks] => 136
[mouse_overs] => 1792
)
首先，在
json\u decode$array = json_decode($yourJson, true);
foreach ($array as $key => $val) {
if (!isset($sum[$val['client']]['impressions'])) {
$sum[$val['client']]['impressions'] = 0;
}
$sum[$val['client']]['impressions'] += $val['impressions'];
// Repeat with other columns
}
$sum['MesaArtsCenter ']['impressions'] = 1234;
我更改了json数组，请替换为您的，我只从您的表中获取了3条记录，并将点击次数更改为1,2,3，因此总点击次数=6
var foo = {
sample: [{"client":"LawCapital ","placementID":"592952","creativeID":"728x90","dimensions":"728x90","impressions":39581,"bxd":4.854581,"viewable_impressions":11319,"exposure":54949,"viewability_rate":28.5970535,"clicks":1,"mouse_overs":4209},
{"client":"LawCapital ","placementID":"592951","creativeID":"300x250","dimensions":"300x250","impressions":31148,"bxd":4.58673525,"viewable_impressions":7373,"exposure":33818,"viewability_rate":23.6708622,"clicks":2,"mouse_overs":3495},
{"client":"LawCapital ","placementID":"592950","creativeID":"160x600","dimensions":"160x600","impressions":17538,"bxd":4.94013739,"viewable_impressions":4076,"exposure":20136,"viewability_rate":23.240963,"clicks":3,"mouse_overs":1792}
]
},
total = 0, //initialize the variable
sample = foo.sample, //JSON element or object literal
i;
for (i = 0; i < sample.length; i++) { //Try to loop through the array
total += sample[i].clicks;
}
alert(total); //get the total clicks 1+2+3 = 6
var foo={
示例：[{“客户”：“LawCapital”，“placementID”：“592952”，“creativeID”：“728x90”，“尺寸”：“728x90”，“印象”：39581，“bxd”：4.854581，“可视印象”：11319，“曝光”：54949，“可视率”：28.5970535，“点击”：1，“鼠标覆盖”：4209}，
{“客户”：“LawCapital”，“placementID”：“592951”，“creativeID”：“300x250”，“维度”：“300x250”，“印象”：31148，“bxd”：4.58673525，“可视印象”：7373，“曝光”：33818，“可视率”：23.6708622，“点击”：2，“鼠标覆盖”：3495}，
{“客户”：“LawCapital”，“placementID”：“592950”，“creativeID”：“160x600”，“维度”：“160x600”，“印象”：17538，“bxd”：4.94013739，“可视印象”：4076，“曝光”：20136，“可视率”：23.240963，“点击”：3，“鼠标覆盖”：1792}
]
},
total=0，//初始化变量
sample=foo.sample，//JSON元素或对象文字
我
对于（i=0；i$array = json_decode($json, true); // Create an array of objects from JSON
$results = array(); // Initialize resulting array
foreach ($array as $item){
// Initialize non-existing indexes in resulting array
if (!isset($results[$item['client']]['impressions'])) $results[$item['client']]['impressions'] = 0; // Initialize non-existing indexes in resulting array
if (!isset($results[$item['client']]['clicks'])) $results[$item['client']]['clicks'] = 0;
// Add those numbers!
$results[$item['client']]['impressions'] += $item['impressions'];
$results[$item['client']]['clicks'] += $item['clicks'];
}
print_r ($results);
Array
(
[LawCapital ] => Array
(
[impressions] => 109141
[clicks] => 966
)
[MesaArtsCenter ] => Array
(
[impressions] => 53938
[clicks] => 82
)
[SantanVW ] => Array
(
[impressions] => 7772
[clicks] => 38
...
谢谢你为你做家庭作业？你能帮我们一点忙吗。请给出您迄今为止提出的非工作解决方案。例如，每个客户机的总和，我尝试给每个客户机一个ID，在数组中搜索客户机并添加到我给他们的ID中，但当数组更大时，这不起作用（这是一个大大减少的数组）。总数将是每个人在一起的总印象，而不是单独的印象。很抱歉没有给出例子，在我的毛绒玩具中，我已经删除了它们，离开了我的电脑，然后回来了。我会尽快找到他们中的一个，怎么不起作用？你的服务器爆炸了还是怎么了？PHP完全能够对庞大的数组进行操作。我认为，我给出的数组示例与实际情况相比有所减少。真正的数组是数千行。我不想在里面放上几千行，所以我减少到只有几行。我担心他正在寻找一个PHP解决方案：）统计数据是假的，但它是真实的布局。我知道你要做什么，但我无法让它工作。当我使用JSON并将其放入PHP时，每个数组都会有一个唯一的变量，它会变成带有子数组的数组，我只是编辑了文章以包含一些PHP数组。当我尝试这样做时，我得到的是：
array（[LawCapital]=>array（[impressions]=>31959）[LawCapital]=>array（[impressions]=>41703）[MesaArtsCenter]=>array（[impressions]=>26165][SantanVW]=>Array（[impressions]=>10568）[MesaArtsCenter]=>Array（[impressions]=>30540）[USRoadSports]=>Array（[impressions]=>11378）[USRoadSports]=>Array（[impressions]=>6744）[Ztejas]=>Array（[impressions]=>6201][Ztejas]=>Array（[impressions]=>3083））