如何实现返回嵌套数组的自定义重组函数？

Question

我从中翻出所有子类别和相关信息数据库此数据来：

$data = array(
    array(
     'destination_name' => 'Ohio Resort', 
     'destination_slug' => 'ohio', 
     'subcategory_name' => 'Bird Hunting', 
     'subcategory_slug' => 'bird-hunting', 
     'category_name' => 'Hunting', 
     'category_slug' => 'hunting', 
    ), 
    array(
     'destination_name' => 'Ohio Resort', 
     'destination_slug' => 'ohio', 
     'subcategory_name' => 'Bear Hunting', 
     'subcategory_slug' => 'bear-hunting', 
     'category_name' => 'Hunting', 
     'category_slug' => 'hunting', 
    ), 
    array(
     'destination_name' => 'Maryland Resort', 
     'destination_slug' => 'maryland', 
     'subcategory_name' => 'Bird Hunting', 
     'subcategory_slug' => 'bird-hunting', 
     'category_name' => 'Hunting', 
     'category_slug' => 'hunting', 
    ), 
    array(
     'destination_name' => 'Cali Resort', 
     'destination_slug' => 'california', 
     'subcategory_name' => 'Sledding', 
     'subcategory_slug' => 'sledding', 
     'category_name' => 'Winter Sports', 
     'category_slug' => 'winter-sports', 
    ), 
); 

我生成XML这个问题，但我需要根据我的具体需求来重新排序。比方说，我指定functionCall($data, array('destination', 'category', 'subcategory'));

我希望它返回它以这种形式：

Array(
    [california] => array(
     [_name] => 'California', 
     [winter-sports] => array(
     '_name' => 'Winter Sports', 
     [0] => array(
      subcategory_name => Sledding, 
      subcategory_slug => sledding 
     ) 
    ) 
    ), 
    [maryland] => array(  
     [_name] => 'Maryland', 
     [hunting] => array(
     '_name' => 'Hunting', 
     [0] => array(
      subcategory_name => Bird Hunting, 
      subcategory_slug => bird hunting 
     ) 
    ) 
    ), 
    [ohio] => array(
     [_name] => 'Ohio', 
     [hunting] => array(
     '_name' => 'Hunting', 
     [0] => array(
      subcategory_name => Bird Hunting, 
      subcategory_slug => bird-hunting 
     ), 
     [1] => array(
      subcategory_name => Bear Hunting, 
      subcategory_slug => bear-hunting 
     ) 
    ) 
    ), 

); 

如果我指定functionCall($data, array('category', 'subcategory'));我想它返回：

Array(
      [winter-sports] => array(
      '_name' => 'Winter Sports', 
      [0] => array(
       subcategory_name => Sledding, 
       subcategory_slug => sledding 
      ) 
     ), 

      [hunting] => array(
      '_name' => 'Hunting', 
      [0] => array(
       subcategory_name => Bird Hunting, 
       subcategory_slug => bird hunting 
      ), 
      [1] => array(
       subcategory_name => Bear Hunting, 
       subcategory_slug => bear-hunting 
      ) 
     ) 
); 

有人能提供创造一些指针函数将数据作为第一个参数，并将层次嵌套作为第二个参数，并以适当的格式返回它？

到目前为止，我做手工重组：

$data = array(); 
foreach($categories as $res) { 
    $destinationSlug = $res['destination_slug']; 
    $destinationName = $res['destination_name']; 
    $categorySlug = $res['category_slug']; 
    $categoryName = $res['category_name']; 
    if (!in_array($destinationSlug, array_keys($data))) { 
    $data[ $destinationSlug ] = array(); 
    $data[ $destinationSlug ]['_name'] = $destinationName; 
    } 
    if (!in_array($categorySlug, array_keys($data[ $destinationSlug ]))) { 
    $data[ $destinationSlug ][ $categorySlug ] = array(); 
    $data[ $destinationSlug ][ $categorySlug ]['_name'] = $categoryName; 
    } 
    $data[ $destinationSlug ][ $categorySlug ][] = array(
    'subcategory_slug' => $res['subcategory_slug'], 
    'subcategory_name' => $res['subcategory_name'], 
    ); 
} 
return $data; 

散记：

• 数据将始终是这种格式。总会有一个_slug和_name对。
• 我需要有能力字母顺序排序结果

Answer 1

你可以使用uasort这允许用户自定义函数中使用排序的阵列，。但我会建议有自己的功能做到这一点，