Question

我在以下结构中有一个数组

Array
(
    [0] => Array
    (
        [name] => John Wayne
        [email] => john.wayne@email.com
    )
    [1] => Array
    (
        [name] => Bruce Lee
        [email] => bruceless@email.com
    )
)

然后我有第二个数组

Array
(
    [0] => Array
    (
        [name] => Group One
        [members] => Array
        (
            [0] => Lora Day
            [1] => James McKay
            [2] => John Wayne
        )
    )
    [1] => Array
    (
        [name] => Group Two
        [members] => Array
        (
            [0] => John Wayne
            [1] => Bruce Lee
            [2] => Brendon Shell
        )
    )
)

第一个数组将包含所有用户的电子邮件地址。第二个数组包含所有组，以及它们组中的用户名。我需要做的是以某种方式获取链接到组中用户的用户电子邮件地址。所以我在考虑以某种方式创建第三个数组

Array
(
    [0] => Array
    (
        [name] => Group One
        [members] => Array
        (
            [Lora Day] => lora@email.com
            [James McKay] => james@email.com
            [John Wayne] => john.wayne@email.com
        )
    )
    [1] => Array
    (
        [name] => Group Two
        [members] => Array
        (
            [John Wayne] => john.wayne@email.com
            [Bruce Lee] => bruceless@email.com
            [Brendon Shell] => brendon@email.com
        )
    )
)

实现这一目标的最佳方法是什么？我可以在文档中看到array_diff_assoc但是不太确定在这种情况下如何利用它？

由于

Answer 1

不是最好的方法，但这是一种没有array_diff_assoc的方法

foreach($secondarray as $key => $secondarrayinner){
    foreach($secondarrayinner['members'] as $innerkey => $row){
        foreach($firstarray as $row2){
            if($row2['name'] == $row){
                $secondarray[$key]['members'][$row2['name']] = $row2['email'];
                unset($secondarray[$key]['members'][$innerkey]);
            }
        }
    }
}

遍历两个数组，如果名称相同，则会设置一个新元素。该名称将被设置为键，值将设置为电子邮件。之后它取消旧值。这样，任何没有找到电子邮件的用户仍然会在那里

Answer 2

只需遍历第二个数组并与名称匹配，然后使用两个foreach

创建一个新数组

$arrayOne = array('0' => array('name' => 'John Wayne','email' => 'john.wayne@email.com'),

                  '1' => array('name' => 'Bruce Lee','email' => 'bruceless@email.com')
                 );

$arrayTwo = array('0' => array('name' => 'Group One','members' => array('0'=>'Lora Day','1'=>'James McKay','2'=>'John Wayne')),

                  '1' => array('name' => 'Group Two','members' => array('0'=>'John Wayne','1'=>'Bruce Lee','2'=>'Brendon Shell'))
                 );

 foreach($arrayTwo as $key=>$value){
    foreach($value['members'] as $ke=>$val){
         if($arrayOne[$key]['name']==$val){
            $arrayTwo[$key]['members'][$val] = $arrayOne[$key]['email'];
           }
           unset($arrayTwo[$key]['members'][$ke]);
       }
   }

echo '<pre>';print_r($arrayTwo);

PHP Cross比较两个数组

2 个答案: