如何 merge/combine 两个值到同一个数组中的单个键

Question

我不确定我的标题使用什么术语是合适的，但只是想知道下面的解决方案需要在关联数组中 merge/combine 两个值合二为一。例如我有这个数组：

Array
(
 [1] => Array
    (
        [agent_name_1] => Agent 1
        [agent_phone_1] => 0123456
        [agent_company_1] => My Company
        [agent_email_1] => agent@yahoo.com
        [agent_address_1] => United States
    )

 )

这里我想结合company_1和address_1。所以输出应该是这样的：

Array
(
 [1] => Array
    (
        [agent_name_1] => Agent 1
        [agent_phone_1] => 0123456
        [agent_email_1] => agent@yahoo.com
        [agent_address_1] => My Company, United States
    )

 )

请有人帮我找出解决这个问题的最简单方法。

Answer 1

需要遍历数组，修改原数组对应的key

foreach ($array as $key => $agent) {
  $array[$key]['agent_address_1'] = $agent['agent_company_1'] . ', ' . $agent['agent_address_1'];
  unset($array[$key]['agent_company_1']);
}

阅读更多关于 foreach 控制结构及其如何遍历数组的信息。

Answer 2

您可以像这样在代码中使用 array_map()：

<?php

$MyArray[1] = array (
        'agent_name_1' => 'Agent 1',
        'agent_phone_1' => '0123456',
        'agent_company_1' => 'My Company', 
        'agent_email_1' => 'agent@yahoo.com', 
        'agent_address_1' => 'United States'
    );

$array = array_map(function($n) {$n['agent_address_1'] = $n['agent_company_1'] . ', ' . $n['agent_address_1']; unset($n['agent_company_1']); return $n;}, $MyArray);

print_r($array);

输出：

Array
(
    [1] => Array
        (
            [agent_name_1] => Agent 1
            [agent_phone_1] => 0123456
            [agent_email_1] => agent@yahoo.com
            [agent_address_1] => My Company, United States
        )

)

阅读更多信息：

http://php.net/array_map

如何 merge/combine 两个值到同一个数组中的单个键

How to merge/combine two values into single key in the same array

php

arrays

algorithm

multidimensional-array

associative-array