Php 向不带'；数组中没有键

给定空闲数组

$array

：

Array
 (
  [1] => Array
    (
        [0] => 267
        [location_id_keep] => 261
    )
  [2] => Array
    (
        [0] => 266
        [location_id_keep] => 262
    )
  [3] => Array
    (
        [0] => 2669
        [1] => 2670
        [location_id_keep] => 2668
    )
  [4] => Array
    (
        [0] => 266
        [1] => 2670
        [location_id_keep] => 2668
    )
  )

我想将没有[

location\u id\u keep

]键的值添加到每个数组中，然后使用fallowing键：[

location\u id\u delete

]以便获得以下输出：

Array

(

[1] => Array
    (
        [location_id_delete] => 267
        [location_id_keep] => 261
    )

[2] => Array
    (
        [location_id_delete] => 266
        [location_id_keep] => 262
    )
[3] => Array
    (
        [location_id_delete] => [2669, 2670]
        [location_id_keep] => 2668
    )

[4] => Array
    (
        [location_id_delete] => [266, 2670]
        [location_id_keep] => 2668
    )
)

---

是否有任何方法可以在分配给没有键的现有值的数组中添加键？

这应该可以，但我建议您重建数据的结构

您可以尝试使用和。array_filter用于过滤键为number的值（您的意思是

location_id_delete

）

正在工作。

这是片段

array_walk($arr, function (&$v) {
    // keeping location_id_keep aside to perform operation of replacing keys
    $temp = array_diff_key($v, ['location_id_keep' => '']);
    if (!empty($temp)) {
        // getting the count of sub arrays other than location_id_keep
        $cnt = count($temp);
        foreach ($temp as $key => $value) {
            // if one record then directly assign data
            if ($cnt == 1) {
                $v['location_id_delete'] = $value;
            } else{ // assign multiple data in an arrat
                $v['location_id_delete'][] = $value;
            }
            // unset numeric index or other than location_id_keep
            unset($v[$key]);
        }
    }
});

-将用户提供的函数应用于阵列的每个成员
-使用用于比较的键计算数组的差异

输出：-

Array
(
    [1] => Array
        (
            [location_id_keep] => 261
            [location_id_delete] => 267
        )

    [2] => Array
        (
            [location_id_keep] => 262
            [location_id_delete] => 266
        )

    [3] => Array
        (
            [location_id_keep] => 2668
            [location_id_delete] => Array
                (
                    [0] => 2669
                    [1] => 2670
                )

        )

    [4] => Array
        (
            [location_id_keep] => 2668
            [location_id_delete] => Array
                (
                    [0] => 266
                    [1] => 2670
                )

        )

)

这将起作用

  foreach($newArray as $key => $val){
            if(array_key_exists('location_id_keep',$val)){
                $array[$key]['location_id_keep'] = $val['location_id_keep'];
                unset($val['location_id_keep']);
            }
            $count = count($val);
            if($count>1){
                 $array[$key]['location_id_delete'] = implode(',',$val);
            }else{
                $array[$key]['location_id_delete'] = $val[0];
            }       
        }

输出

Array
(
    [1] => Array
        (
            [location_id_keep] => 261
            [location_id_delete] => 267
        )

    [2] => Array
        (
            [location_id_keep] => 262
            [location_id_delete] => 266
        )

    [3] => Array
        (
            [location_id_keep] => 2668
            [location_id_delete] => 2669,2670
        )

    [4] => Array
        (
            [location_id_keep] => 2668
            [location_id_delete] => 266,2670
        )

)

功能溶液

foreach($arrays as &$array){
    // get numeric key items 
    $temp = array_filter($array, 'is_numeric',ARRAY_FILTER_USE_KEY);
    // remove them from array and return under new key
    $array = array_diff($array, $temp) + ['location_id_delete'=>$temp];
}

---

您可以将

foreach

与

内爆

和

取消设置

  foreach($a as $k => &$v){
    $location = $v['location_id_keep'];
    unset($v['location_id_keep']);
    $r[] = [
      'location_id_delete' => implode(',',$v), 
      'location_id_keep'   => $location
    ];
  }

---

实时示例：

您希望如何使用相同的密钥

位置\u id\u delete

？您想要的输出无效；PHP数组不能有多个具有相同键的元素。其错误

[location\u id\u delete]=>2669[location\u id\u delete]=>2670

应该是，例如，

[location\u id\u delete]=>[26692670]

类似这样的[location\u id\u delete]=>[266922670]etcI对我所需的输出进行了更正。

foreach($arrays as &$array){
    // get numeric key items 
    $temp = array_filter($array, 'is_numeric',ARRAY_FILTER_USE_KEY);
    // remove them from array and return under new key
    $array = array_diff($array, $temp) + ['location_id_delete'=>$temp];
}

  foreach($a as $k => &$v){
    $location = $v['location_id_keep'];
    unset($v['location_id_keep']);
    $r[] = [
      'location_id_delete' => implode(',',$v), 
      'location_id_keep'   => $location
    ];
  }