如何从多维数组中提取特定的数据



我正在将XML文件转换为关联数组以提取数据,问题是我必须根据数组数进行10次循环才能获得数据。

是否有更好的方法来获得特定的列数据而不创建许多循环?因为我想把它们赋值给变量

数组我试图从

获取数据
 Array
(
    [catalog] => Array
        (
            [book] => Array
                (
                    [0] => Array
                        (
                            [took] => Array
                                (
                                    [dodo] => Array
                                        (
                                            [ahmadz] => Array
                                                (
                                                    [lolo] => 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.
                                                        )
                                                )
                                        )
                                )
                        )
                    [1] => Array
                        (
                            [took] => Array
                                (
                                    [dodo] => Array
                                        (
                                            [ahmadz] => Array
                                                (
                                                    [lolo] => 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.
                                                        )
                                                )
                                        )
                                )
                        )
                )
        )
)

我删除了所有其他数据以使其更易于阅读,但数组中还有许多其他值。总之,我怎样才能得到author的值呢?

echo $array['author']; 

假设我有许多作者数据,而不是上面的例子

请帮助!。

编辑 .....................

Array
(
    [catalog] => Array
        (
            [book] => Array
                (
                    [0] => Array
                        (
                            [took] => Array
                                (
                                    [dodo] => Array
                                        (
                                            [ahmadz] => Array
                                                (
                                                    [lolo] => Array
                                                        (
                                                            [tata] => Array
                                                                (
                                                                    [author] => jac1
                                                                    [title] => Midnight Rain1
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies.
                                                                )
                                                            [tata2] => Array
                                                                (
                                                                    [author] => jack2
                                                                    [title] => Midnight Rain1
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies.
                                                                )
                                                        )
                                                )
                                        )
                                )
                        )
                    [1] => Array
                        (
                            [took] => Array
                                (
                                    [dodo] => Array
                                        (
                                            [ahmadz] => Array
                                                (
                                                    [lolo] => Array
                                                        (
                                                            [tata] => Array
                                                                (
                                                                    [author] => jack3
                                                                    [title] => Midnight Rain1
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies.
                                                                )
                                                            [tata2] => Array
                                                                (
                                                                    [author] => jack4
                                                                    [title] => Midnight Rain1
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies.
                                                                )
                                                        )
                                                )
                                        )
                                )
                        )
                )
        )
)

正如你在上面看到的,我只想得到父键为tata而不是tata2的值

所以我可以把它们分别插入数据库

试试下面的代码,它会给你所有的作者从多维数组作为一个数组,而不使用for循环。此外,如果你想从多维数组中检索其他值,那么你需要在in_array条件下传递数组键,并根据你的要求准备数据…

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

希望对您有所帮助....

也可以构建自己的自定义递归函数并从数组中过滤出所需的值,然后构建自定义数组,如lolo1 =>author和lolo1 =>author....

function my_walk_recursive($your_multidimentional_array, $find_value, &$filtered_array) {
    foreach($your_multidimentional_array as $key => $data) {                   
        if($data[$find_value] != '') {
            $filtered_array[$key] = $data['author'];
            return true;
        }
        elseif(is_array($data) && (!empty($data))) {
            $result = my_walk_recursive($data, $find_value, $filtered_array);
            if($result == true) {
                continue;
            }
        }           
    }
    return $filtered_array;
}
$filtered_array =  array();
$final_array = array();
$final_array = my_walk_recursive($test_array, 'author', $filtered_array);
var_dump($final_array);

希望对您有所帮助....

相关内容

  • 没有找到相关文章