如何從多維數組中提取特定數據
[英]How to pull specific data from multidimensional array
問題描述
我正在將XML文件轉換為關聯數組以提取數據，問題是我必須根據數組編號進行10次循環才能獲取數據。
有沒有更好的方法來獲取特定的列數據而不創建很多循環？ 因為我想將它們分配給變量。
我試圖從中獲取數據的數組
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.
)
)
)
)
)
)
)
)
我刪除了所有其他數據以使其更易於讀取，但是數組中還有許多其他值。 無論如何，我如何獲得作者的價值。
echo $array['author'];
假設我有很多作者數據，而不是上面的例子
請幫忙！。
編輯.....................
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，我只想獲取具有父鍵tata而不是tata2的值
所以我可以將它們分別插入數據庫
2 個解決方案
解決方案1
1 已采納 2016-10-24 15:15:20
嘗試下面的代碼，它將為您提供所有作者作為多維數組的數組，而無需使用forloops ..，同樣，如果您想從多維數組中檢索其他值，則需要在if條件下在in_array中傳遞數組鍵，並根據您的條件准備數據需求...
$author_array = array();
array_walk_recursive($your_multidimentional_array, function($value, $key) {
if (in_array($key, array("author"))) {
global $author_array;
$author_array[] = $value;
}
});
print_r($author_array);
希望這可以幫助....
解決方案2
1 2016-10-25 09:06:00
也可以構建自己的自定義遞歸函數並從數組中過濾出所需的值，然后從多維數組中構建自定義數組，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);
希望這可以幫助....
如何檢查其他多維數組中的1個多維數組中的數據
[英]how to check data from 1 multidimensional array in other multidimensional array
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