如何合理化PHP中的多维数组？

发布于 2024-12-04 08:14:56 字数 1788 浏览 0 评论 0原文

我一整天都在尝试这个！我如何将顶部多维数组转换为底部。

Array (
[0] => Array ( [id] => 34 [email] => [email protected] ) 
[1] => Array ( [id] => 34 [email] => [email protected] ) 
[2] => Array ( [id] => 33 [email] => [email protected] ) 
[3] => Array ( [id] => 33 [email] => [email protected] ) 
[4] => Array ( [id] => 33 [email] => [email protected] ) 
) 

Array (
[0]=>Array ([id] => 34 [email] => Array ([0]=> [email protected] [1]=>[email protected] )
[1]=>Array ([id] => 33 [email] => Array ([0]=> [email protected] [1]=>[email protected] [2]=>[email protected])
)

非常感谢。

原文

I've been trying this all day!
How would I convert the top multidimensional array into the bottom.

Array (
[0] => Array ( [id] => 34 [email] => [email protected] ) 
[1] => Array ( [id] => 34 [email] => [email protected] ) 
[2] => Array ( [id] => 33 [email] => [email protected] ) 
[3] => Array ( [id] => 33 [email] => [email protected] ) 
[4] => Array ( [id] => 33 [email] => [email protected] ) 
) 

Array (
[0]=>Array ([id] => 34 [email] => Array ([0]=> [email protected] [1]=>[email protected] )
[1]=>Array ([id] => 33 [email] => Array ([0]=> [email protected] [1]=>[email protected] [2]=>[email protected])
)

Many thanks.

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贩梦商人 2024-12-11 08:14:56

$new_array = array();
foreach ($orig_array as $child) {
    $new_array[$child['id']][] = $child['email'];
}

$final_array = array();
foreach($new_array as $child) {
   $final_array[] = $child;
}

第一个循环生成一个与 id 字段无关的数组，并简单地将每个电子邮件地址推入其中。然后，第二个循环获取该中间数组并在其周围包装另一个数组以获取 0,1 等...键。

$new_array = array();
foreach ($orig_array as $child) {
    $new_array[$child['id']][] = $child['email'];
}

$final_array = array();
foreach($new_array as $child) {
   $final_array[] = $child;
}

The first loop produces an array keyed off the id fields, and simply pushes each email address onto it. The second loop then takes that intermediate array and wraps another array around it for the 0,1,etc... keys.

回复收藏 0 原文

箹锭⒈辈孓 2024-12-11 08:14:56

仅仅使用密钥来存储 ID 不是更简单的方法吗？像这样：

Array (
[34]=>Array ([email] => Array ([0]=> [email protected] [1]=>[email protected] )
[33]=>Array ([email] => Array ([0]=> [email protected] [1]=>[email protected] [2]=>[email protected])
)

那么对电子邮件进行分组将成为一项微不足道的任务。

Would not just using keys in order to store IDs be an easier way to do that? Like this:

Array (
[34]=>Array ([email] => Array ([0]=> [email protected] [1]=>[email protected] )
[33]=>Array ([email] => Array ([0]=> [email protected] [1]=>[email protected] [2]=>[email protected])
)

Then grouping emails would become a trivial task.

回复收藏 0 原文

~没有更多了~