如何从多维数组中提取特定数据
[英]How to pull specific data from multidimensional array
问题描述
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编号进行10次循环才能获取数据。
有没有更好的方法来获取特定的列数据而不创建很多循环？ 因为我想将它们分配给变量。
我试图从中获取数据的数组
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读取，但是数组中还有许多其他值。 无论如何，我如何获得作者的价值。
echo $array['author'];
假设我有很多作者数据，而不是上面的例子
请帮忙！。
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.
)
)
)
)
)
)
)
)
)
如您在上面看到的，我只想获取具有父键tata而不是tata2的值
所以我可以将它们分别插入数据库
2 个解决方案
解决方案1
1 已采纳 2016-10-24 15:15:20
尝试下面的代码，它将为您提供所有作者作为多维数组的数组，而无需使用forloops ..，同样，如果您想从多维数组中检索其他值，则需要在if条件下在in_array中传递数组键，并根据您的条件准备数据需求...
$author_array = array();
array_walk_recursive($your_multidimentional_array, function($value, $key) {
if (in_array($key, array("author"))) {
global $author_array;
$author_array[] = $value;
}
});
print_r($author_array);
希望这可以帮助....
解决方案2
1 2016-10-25 09:06:00
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，然后从多维数组中构建自定义数组，例如lolo => author和lolo1 => author ....，如下所示...
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);
希望这可以帮助....
如何检查其他多维数组中的1个多维数组中的数据
[英]how to check data from 1 multidimensional array in other multidimensional array
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