合并在多维数组相同的键在PHP

Question

我有一个数组像下面我想使用相同的按键

Array 
(
    [charts_group_name] => all hosts 
    [hosts] => Array 
    (
     [0] => Array 
     (
      [Redmine] => CPU load 
     ) 
     [1] => Array 
     (
      [Redmine] =>CPU utilization 
     ) 
     [2] => Array 
     (
      [test123] => Kernel Process Creations 
     ) 
     [3] => Array 
     (
      [test123] => Memory used 
     ) 
    ) 
) 

合并数组，但我想象下面，我的意思是我要合并的钥匙同名像管理平台，test123 ..

Array 
(
    [charts_group_name] => all hosts 
    [hosts] => Array 
    (
     [0] => Array 
     (
      [Redmine] =>Array 
      (
       [0] => CPU load 
       [1] =>CPU utilization 
      ) 
     ) 
     [1] => Array 
     (
      [test123] => Array 
      (
       [0] =>Memory used 
       [1] =>Number of threads 
      ) 
     ) 
    ) 
) 

我想这code..but我没有得到答案

foreach($multiplehostconfigarray as $item) { 
    foreach($item as $it) { 
     $serv = key($item); 
     $host = current($item); 
     if(!isset($result[$serv ])) { 
      $result[$artist] = array(); 
     } 
     print_r($result[$serv][] = $host); 
    } ` 
} 

Answer 1

$mArray = array(
    'charts_group_name' => 'all hosts', 
    'hosts' => array (
     array('Redmine' => 'CPU Load'), 
     array('Redmine' => 'CPU utilization'), 
     array('test123' => 'Kernel process..'), 
     array('test123' => 'Memory used') 
    ) 
); 

print_r($mArray); 

$newArray = $mArray; 
$newArray['hosts'] = array(); 

foreach($mArray['hosts'] as $currentHost) { 
    foreach($currentHost as $hostKey => $hostValue) { 
     $newArray['hosts'][$hostKey][] = $hostValue; 
    } 
} 

print_r($newArray); 

的，其结果是：

Array 
(
    [charts_group_name] => all hosts 
    [hosts] => Array 
     (
      [0] => Array 
       (
        [Redmine] => CPU Load 
       ) 
      [1] => Array 
       (
        [Redmine] => CPU utilization 
       ) 
      [2] => Array 
       (
        [test123] => Kernel process.. 
       ) 
      [3] => Array 
       (
        [test123] => Memory used 
       ) 
     ) 
) 
Array 
(
    [charts_group_name] => all hosts 
    [hosts] => Array 
     (
      [Redmine] => Array 
       (
        [0] => CPU Load 
        [1] => CPU utilization 
       ) 
      [test123] => Array 
       (
        [0] => Kernel process.. 
        [1] => Memory used 
       ) 
     ) 
) 

如果必须有阵列内Redmine和test123自理，那么你应该先检查是否他们已经hosts子阵中存在。您可以使用递归函数（如that one）来完成此操作。

Answer 2

<?php 
$multiplehostconfigarray = array(
    'charts_group_name' => 'all hosts', 
    'hosts' => array(
        array('Redmine' => 'CPU load'), 
        array('Redmine' => 'CPU utilization'), 
        array('test123' => 'Kernel Process Creations'), 
        array('test123' => 'Memory used') 
       ) 

    ); 


$array = array(); 
foreach($multiplehostconfigarray['hosts'] as $item) 
{ 
     $array[key($item)][] = current($item); 
} 

$multiplehostconfigarray['hosts'] = $array; 
echo '<pre>'; 
print_r($multiplehostconfigarray); 

Answer 3

试试这个：

<?php 
$arr = array(
    'charts_group_name' => 'all hosts', 
    'hosts' => array (
     array('Redmine' => 'CPU load'), 
     array('Redmine' => 'CPU utilization'), 
     array('test123' => 'Kernel Process Creations'), 
     array('test123' => 'Memory used'), 
    ) 
); 

$newArr = array_map(function($v) { 
         return is_array($v) 
           ? call_user_func_array('array_merge_recursive', $v) 
           : $v; 
        }, 
        $arr); 
print_r($newArr); 

输出是：

Array 
(
    [charts_group_name] => all hosts 
    [hosts] => Array 
     (
      [Redmine] => Array 
       (
        [0] => CPU load 
        [1] => CPU utilization 
       ) 

      [test123] => Array 
       (
        [0] => Kernel Process Creations 
        [1] => Memory used 
       ) 

     ) 

)