如何从多维数组中提取特定数据

Question

我有一个问题，我必须做10个循环取决于数组的数字，以获得数据。

我修复了一些帮助从我的其他帖子，但我有一个问题重命名

我使用的数组

Array
(
    [catalog] => Array
        (
            [book] => Array
                (
                    [0] => Array
                        (
                            [took] => Array
                                (
                                    [dodo] => Array
                                        (
                                            [ahmadz] => Array
                                                (
                                                    [lolo] => Array
                                                        (
                                                            [tata] => Array
                                                                (
                                                                    [author] => ahmadz
                                                                    [title] => Midnight Rain
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies, 
                              an evil sorceress, and her own childhood to become queen 
                              of the world.
                                                                )
                                                        )
                                                )
                                        )
                                )
                        )
                    [1] => Array
                        (
                            [took] => Array
                                (
                                    [dodo] => Array
                                        (
                                            [ahmadz] => Array
                                                (
                                                    [lolo] => Array
                                                        (
                                                            [tata2] => Array
                                                                (
                                                                    [author] => Ralls, Kim
                                                                    [title] => Midnight Rain
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies, 
                              an evil sorceress, and her own childhood to become queen 
                              of the world.
                                                                )
                                                        )
                                                )
                                        )
                                )
                        )
                )
        )
)

我就是这样得到一个特定的数据的

$author_array = array();
array_walk_recursive($array, function($value, $key) {
    if (in_array($key, array("author"))) {
       echo  $author_array[] = $value;
    }
});

问题是在这些值

之前

 [author] => ahmadz
 [title] => Midnight Rain
 [genre] => Fantasy
 [price] => 5.95

我有不同的键

tata and tata2

我只想得到"tata" key

中的值

但是上面的代码同时返回"tata"one_answers"tata2"键的值

请帮我从一个键得到数据，而不是两个

Answer 1

这是一个有点草率的方法，但它应该工作。只需查找tata键，然后从中提取作者字段。

$author_array = array();
array_walk_recursive($array, function($value, $key) {
   if (in_array($key, array("tata"))) {
      echo  $author_array[] = $value["author"];
   }
});

Answer 2

直接使用嵌套foreach循环

foreach($数组("目录")("书")作为关键=>美元值){foreach(美元价值("带")("渡渡鸟")("ahmadz")("罗罗语")作为key2 => value2美元){回声"作者:"。$ value2("作者");}}