转换多维数组（php）

Question

我目前正在努力将 PHP 中的这个数组转换为更简化的数组。这是我的数组开始存储在$array：

   [0] => Array

       (

           [name] => name-1

           [value] => xXX

       )

   [1] => Array

       (

           [name] => name-2

           [value] => YYY

       )

我想从这个数组转换到这个简化的数组$array_new：

   [0] => Array

       (

           [name-1] => xXX

       )

   [1] => Array

       (

           [name-2] => YYY

       )

我很遗憾不知道要开始...有人可以帮我吗？

编辑：通过 array_column() 或 foreach 循环转换数组后，我仍然无法使用 $array_new['name-2']; 获得正确的数据；

Answer 1

您可以使用array-column来做到这一点。文件说：array_column ( 数组 $input , 混合 $column_key [, 混合 $index_key = NULL ] ) : 数组这样做：$first_names = array_column($array, 'value', 'name');现场示例：3v4l

Answer 2

使用 foreach：<?php$items =[&nbsp; &nbsp; [&nbsp; &nbsp; &nbsp; &nbsp; 'plant' => 'fern',&nbsp; &nbsp; &nbsp; &nbsp; 'colour' => 'green'&nbsp; &nbsp; ],&nbsp; &nbsp; [&nbsp; &nbsp; &nbsp; &nbsp; 'plant' => 'juniper',&nbsp; &nbsp; &nbsp; &nbsp; 'colour' => 'blue'&nbsp; &nbsp; ]];foreach($items as $item) {&nbsp; &nbsp; $output[][$item['plant']]=$item['colour'];}var_dump($output);输出：array(2) {&nbsp; &nbsp; [0]=>&nbsp; &nbsp; array(1) {&nbsp; &nbsp; ["fern"]=>&nbsp; &nbsp; string(5) "green"&nbsp; &nbsp; }&nbsp; &nbsp; [1]=>&nbsp; &nbsp; array(1) {&nbsp; &nbsp; ["juniper"]=>&nbsp; &nbsp; string(4) "blue"&nbsp; &nbsp; }}

Answer 3

问题好吧，这是我看到很多初学者都在处理的问题。有点创意：回答//Let's get your old array:$old = [&nbsp; &nbsp;0 => [&nbsp; &nbsp; &nbsp; 'name' => 'name-1',&nbsp; &nbsp; &nbsp; 'value' => 'xXX'&nbsp; &nbsp;],&nbsp; &nbsp;1 => [&nbsp; &nbsp; &nbsp; 'name' => 'name-2',&nbsp; &nbsp; &nbsp; 'value' => 'YYY'&nbsp; &nbsp;]];//Let's create an array where we will store the new data:$result = [];foreach($old as $new) { //Loop through&nbsp; &nbsp;$result[$new['name']] = $new['value']; //Store associatively with value as value}var_dump($result);结果：Array[2] => [&nbsp; &nbsp;[name-1] => xXX,&nbsp; &nbsp;[name-2] => YYY];