Question

我在循环中打印此数组的结果时遇到问题（要显示在前端）。能够获得章节名称（例如，Chapter_Name_Unique），章节名称的总章节后视图计数，以及该章节名称（或组）中每个chapter_member的全名的目标。我认为这里没有正确的结构，因为我有问题在循环。

我的逻辑关闭了吗？

print_r看起来像这样：

Array
(
 [Chapter_Name_Unique] => Array
    (
        [chapter_post_views_count] => 3338
        [chapter_members] => Array
            (
                [0] => Array
                    (
                        [post_views_count] => 3338
                        [first_name] => Mary
                        [last_name] => Jane
                        [fullname] => maryjane
                        [chapter_name] => Chapter_Name_Unique
                    )

            )

    )

[Chapter_Name_Unique_2] => Array
    (
        [chapter_post_views_count] => 783
        [chapter_members] => Array
            (
                [0] => Array
                    (                    
                        [post_views_count] => 404
                        [first_name] => Betty
                        [last_name] => Lou
                        [fullname] => bettylou
                        [chapter_name] => Chapter_Name_Unique_2
                    )

                [1] => Array
                    (
                        [post_views_count] => 379
                        [first_name] => Judy
                        [last_name] => Jones
                        [fullname] => judyjones
                        [chapter_name] => Chapter_Name_Unique_2
                    )
            )
    )
)

，实际功能如下：

$grouped_types = array();

// to add together post counts of group members
foreach($users as $chapter){ 
$grouped_types[$chapter['chapter_name']]['chapter_post_views_count'] += $chapter['post_views_count'];
}

// to group on top level by chapter_name
foreach($users as $chapter){ 
$grouped_types[$chapter['chapter_name']]['chapter_members'][] = $chapter;
}

echo "<pre>";
print_r( $grouped_types );
echo "</pre>";

Answer 1

尝试类似的事情（假设$users中的print_r()是您的数组）

$grouped_types = array();

foreach($users as $chapter=>$data){ 

    $grouped_types[$chapter]['chapter_post_views_count'] = $data['chapter_post_views_count'];

    foreach($data['chapter_members'] as $member){ 

        $grouped_types[$chapter]['chapter_members'][] = $members['fullname'];

    }

}

echo "<pre>";
print_r( $grouped_types );
echo "</pre>";

Answer 2

非常感谢你们，你们的提示确实很有帮助。我两个人都用了一点，然后把它拉到一起：

foreach( $grouped_types as $chapter_name_unique => $vars) { 
$chapter_post_views = $vars['chapter_post_views_count'];
$chapter_members = $vars['chapter_members']; 

echo $chapter_name_unique; // echo chapter name (level 1)
echo $chapter_post_views; // echo chapter post views (level 2 - $vars before)

foreach( $vars['chapter_members'] as $member){ // loop through all chapter_members

    $vars['chapter_members'][] = $member['fullname'];
    echo $member['fullname']; // echo all usernames within the group

    }
}

结合上面的另外两个foreach语句（它们一起使用并保存到$grouped_types数组中），这完全符合我的需要。（希望没有太多不必要的循环？）

再次感谢！

数组 - 循环，按键值组合在一起，然后打印/回显新值（各种数组级别）

2 个答案: