如何从多维数组中提取特定的密钥数据


How to pull a specific key data from multidimensional array

我正在将XML文件转换为关联数组来提取数据,问题是我必须根据数组编号进行10个循环才能获得数据。

有没有更好的方法可以在不创建多个循环的情况下获得特定列的数据?因为我想把它们分配给变量。

我试图从获取数据的阵列

Array
(
    [catalog] => Array
        (
            [comp] => Array
                (
                    [0] => Array
                        (
                            [look] => Array
                                (
                                    [shp] => Array
                                        (
                                            [wok] => Array
                                                (
                                                    [group] => Array
                                                        (
                                                            [customer] => Array
                                                                (
                                                                    [author] => jack
                                                                    [title] => Midnight Rain1
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies.
                                                                )
                                                            [customer2] => Array
                                                                (
                                                                    [author] => lemass
                                                                    [title] => Midnight Rain1
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies.
                                                                )
                                                        )
                                                )
                                        )
                                )
                        )
                    [1] => Array
                        (
                            [look] => Array
                                (
                                    [shp] => Array
                                        (
                                            [wok] => Array
                                                (
                                                    [group] => Array
                                                        (
                                                            [customer] => Array
                                                                (
                                                                    [author] => jon
                                                                    [title] => Midnight Rain1
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies.
                                                                )
                                                            [customer2] => Array
                                                                (
                                                                    [author] => kirito
                                                                    [title] => Midnight Rain1
                                                                    [genre] => Fantasy
                                                                    [price] => 5.95
                                                                    [publish_date] => 2000-12-16
                                                                    [description] => A former architect battles corporate zombies.
                                                                )
                                                        )
                                                )
                                        )
                                )
                        )
                )
        )
)

我正试图得到这样的数据!

我有两个阵列"customer"answers"customer1">

我想得到这样的数据

客户=>作者

输出

jack
jon

因为它们在客户阵列中

有可能做到吗??

假设您的数组存储在$arr中,您将访问comp索引,然后循环它,因为这些都是数字索引。然后你就有了一个数组来减少更多。这一切似乎有点膨胀的数组结构,但将工作

$arr; //Set this to your converted xml
$comps = $arr['catalog']['comp'];
foreach($comps as $comp){
    echo $comp['look']['shp']['wok']['group']['customer']['author'];
}
<?php
$aVar = Array
(
    'catalog' => Array
        (
            'comp' => Array
                (
                    0 => Array
                        (
                            'look' => Array
                                (
                                    'shp' => Array
                                        (
                                            'wok' => Array
                                                (
                                                    'group' => Array
                                                        (
                                                            'customer' => Array
                                                                (
                                                                    'author' => 'jack',
                                                                    'title' => 'Midnight Rain1',
                                                                    'genre' => 'Fantasy',
                                                                    'price' => 5.95,
                                                                    'publish_date' => '2000-12-16',
                                                                    'description' => 'A former architect battles corporate zombies.'
                                                                ),
                                                            'customer2' => Array
                                                                (
                                                                    'author' => 'lemass',
                                                                    'title' => 'Midnight Rain1',
                                                                    'genre' => 'Fantasy',
                                                                    'price' => 5.95,
                                                                    'publish_date' => '2000-12-16',
                                                                    'description' => 'A former architect battles corporate zombies.'
                                                                )
                                                        )
                                                )
                                        )
                                )
                        ),
                    1 => Array
                        (
                            'look' => Array
                                (
                                    'shp' => Array
                                        (
                                            'wok' => Array
                                                (
                                                    'group' => Array
                                                        (
                                                            'customer' => Array
                                                                (
                                                                    'author' => 'jon',
                                                                    'title' => 'Midnight Rain1',
                                                                    'genre' => 'Fantasy',
                                                                    'price' => 5.95,
                                                                    'publish_date' => '2000-12-16',
                                                                    'description' => 'A former architect battles corporate zombies.'
                                                                ),
                                                            'customer2' => Array
                                                                (
                                                                    'author' => 'kirito',
                                                                    'title' => 'Midnight Rain1',
                                                                    'genre' => 'Fantasy',
                                                                    'price' => 5.95,
                                                                    'publish_date' => '2000-12-16',
                                                                    'description' => 'A former architect battles corporate zombies.'
                                                                )
                                                        )
                                                )
                                        )
                                )
                        )
                )
        )
);

function findKey($array, $keySearch) {
    foreach ($array as $key => $item) {
        if ($key === $keySearch) {
            echo $item . '<br>';
            //return true; // if just the first is wanted
        } else if (is_array($item) && findKey($item, $keySearch)) {
            return true;
        }
    }
    return false;
}
findKey($aVar, 'author');

打印输出:

插孔

lemass

jon

基里托

源代码检查多维数组中是否存在特定的数组键-PHP