代码

Question

我有一个名为ArrayObj的Array，如下所示，

ArrayObj = [
{
  "attr1" : "d1",
  "attr2" : "some data for d1 key"
  ...
},
{      
  "attr1" : "d2",
  "attr2" : "some data for d2 key"
  ...
},
.
.
. 33 objects
]

每N个对象后的值相同。这里可以说是11件事之后。

使用上面的ArrayObj我创建了Array1，如下所示：

Array1 = ["d1","d2","d3",...,"d1","d2","d3",...,"d1","d2","d3",...33 items]

因为它在每N个值之后包含相同的值，我得到的内容如上所述。

现在，我想通过循环遍历Array1一次创建Array2，其中包含33个项目和ArrayObj，一次有33个对象并将它们合并为3个对象。

因为33项（Array1：左侧键）= 33项（ArrayObj：右侧值）请记住我只需要来自ArrayObj的单个属性的值

但是这里的问题或挑战是所有三个新创建的对象的键是相同的，因此它会被覆盖，最终只有一个数组内的对象。

我正在寻找的是：

[
{
      "d1" : "some data 1",
      "d2" : "some data 2",
      "d3" : "some data 3",
      ...
      ...
      11 objects
},
{
      "d1" : "some data 1",
      "d2" : "some data 2",
      "d3" : "some data 3",
      ...
      ...
      11 objects
},
{
      "d1" : "some data 1",
      "d2" : "some data 2",
      "d3" : "some data 3",
      ...
      ...
      11 objects
}
]

我得到的是：

[
{
      "d1" : "some data 1",     //The Last object only, first 2 are overwritten because of same keys
      "d2" : "some data 2",
      "d3" : "some data 3",
      ...
      ...
      11 objects
}
]

代码

 $ArrayObj (contains 33 objects with all the data)

 $Array1 = array(); // 33 items
 $Array2 = array(); // new array need to add 3 objects

    for($j = 0; $j < $totalCount; $j++){ //33 totalCount
        $Array1[$j] = $ArrayObj[$j]['left_side_data'];   //getting particular attribute value and storing it as an array
    }

   //By now I have $Array1 with 33 items in it containing all the items which will be keys for Array2

    foreach($ArrayObj as $key=>$res){
        $Array2[$Array1[$key]] = $ArrayObj[$key]['data'];
    }
    return $Array2;

Answer 1

使用array_chunk将数组拆分为具有3个对象组的组

$ArrayObj = json_decode($ArrayObj, true);

$temp = array_chunk($ArrayObj, 3);
$res = [];
foreach (array_chunk($ArrayObj, 2) as $items) {
   $temp = [];
   foreach($items as $x) {
     $temp[$x["attr1"]] = $x["attr2"];
   }
   $res [] = $temp;  
}
print_r(json_encode($res));

demo

循环遍历包含数组和对象数组的2个数组 - Php

代码

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