PHP数组获取父元素和子元素
PHP数组获取父元素和子元素
提问于 2018-07-21 23:07:59
你好，我有一个来自数据集的数组：
示例：
array (
1 =>
array (
'id' => '1',
'name' => ' Category',
'id_parent' => '0',
'ativo' => '1',
),
2 =>
array (
'id' => '2',
'name' => ' Slippers',
'id_parent' => '0',
'ativo' => '1',
),
3 =>
array (
'id' => '3',
'name' => ' TShirts',
'id_parent' => '0',
'ativo' => '1',
),
4 =>
array (
'id' => '4',
'name' => ' BlousesSweatshirt',
'id_parent' => '0',
'ativo' => '1',
),
5 =>
array (
'id' => '5',
'name' => ' Cap',
'id_parent' => '0',
'ativo' => '1',
),
6 =>
array (
'id' => '6',
'name' => ' Stickers',
'id_parent' => '0',
'ativo' => '1',
),
7 =>
array (
'id' => '7',
'name' => ' ScreensandFrames',
'id_parent' => '0',
'ativo' => '1',
),
8 =>
array (
'id' => '8',
'name' => ' Models',
'id_parent' => '0',
'ativo' => '1',
),
9 =>
array (
'id' => '9',
'name' => ' Notebook',
'id_parent' => '6',
'ativo' => '1',
),
10 =>
array (
'id' => '10',
'name' => ' Door',
'id_parent' => '0',
'ativo' => '1',
),
11 =>
array (
'id' => '11',
'name' => ' Door',
'id_parent' => '6',
'ativo' => '1',
),
12 =>
array (
'id' => '12',
'name' => ' Kangaroo',
'id_parent' => '4',
'ativo' => '1',
),
13 =>
array (
'id' => '13',
'name' => ' KangarooRaglan',
'id_parent' => '4',
'ativo' => '1',
),
14 =>
array (
'id' => '14',
'name' => ' RoundCollar',
'id_parent' => '4',
'ativo' => '1',
),
15 =>
array (
'id' => '15',
'name' => ' Trucker',
'id_parent' => '5',
'ativo' => '1',
),
16 =>
array (
'id' => '16',
'name' => ' Basic',
'id_parent' => '3',
'ativo' => '1',
),
17 =>
array (
'id' => '17',
'name' => ' Longline',
'id_parent' => '3',
'ativo' => '1',
),
18 =>
array (
'id' => '18',
'name' => ' Raglan',
'id_parent' => '3',
'ativo' => '1',
),
19 =>
array (
'id' => '19',
'name' => ' Raglan3/4',
'id_parent' => '3',
'ativo' => '1',
),
20 =>
array (
'id' => '20',
'name' => ' Regatta',
'id_parent' => '3',
'ativo' => '1',
),
21 =>
array (
'id' => '21',
'name' => ' Slide',
'id_parent' => '2',
'ativo' => '1',
),
22 =>
array (
'id' => '22',
'name' => ' Stickers',
'id_parent' => '8',
'ativo' => '1',
),
23 =>
array (
'id' => '23',
'name' => ' Notebook',
'id_parent' => '22',
'ativo' => '1',
),
24 =>
array (
'id' => '24',
'name' => ' T-shirt',
'id_parent' => '8',
'ativo' => '1',
),
25 =>
array (
'id' => '25',
'name' => ' Basic',
'id_parent' => '24',
'ativo' => '1',
),
26 =>
array (
'id' => '26',
'name' => ' Slippers',
'id_parent' => '8',
'ativo' => '1',
),
27 =>
array (
'id' => '27',
'name' => ' Slide',
'id_parent' => '26',
'ativo' => '1',
),
28 =>
array (
'id' => '28',
'name' => ' 1Screen',
'id_parent' => '7',
'ativo' => '1',
),
29 =>
array (
'id' => '29',
'name' => ' Set3Screens',
'id_parent' => '7',
'ativo' => '1',
),
30 =>
array (
'id' => '30',
'name' => ' Set5Screens',
'id_parent' => '7',
'ativo' => '1',
),
31 =>
array (
'id' => '31',
'name' => ' BlousesSweatshirt',
'id_parent' => '8',
'ativo' => '1',
),
32 =>
array (
'id' => '32',
'name' => ' Cap',
'id_parent' => '8',
'ativo' => '1',
),
33 =>
array (
'id' => '33',
'name' => ' ScreensandFrames',
'id_parent' => '8',
'ativo' => '1',
),
)而这个数组我们有父亲和孩子，
示例：
-EX:1模特是:贴纸，T恤，拖鞋之父
Notebook贴纸之父：-EX:2
我需要的是一个函数来递归地获取Model和所有的孩子(直到结束)：
我已经完成了一个从Notebook中获取递归父亲的函数，例如：
这里：
function returnParent($id, $haystack, $arr = null){
$needle = $haystack[$id];
$arr[] = $needle;
if($needle['id_parent']){
return returnParent($needle['id_parent'], $haystack, $arr);
}else{
return $arr;
}
}其中$id = 23和$haystack是完整的数据集。
结果：
Array
(
[0] => Array
(
[id] => 23
[name] => Notebook
[id_parent] => 22
)
[1] => Array
(
[id] => 22
[name] => Stickers
[id_parent] => 8
)
[2] => Array
(
[id] => 8
[name] => models
[id_parent] => 0
)
)返回子代的函数结果需要和returnParent相同，查找到的值需要作为key 0在数组中；
完整数据集在此处：https://pastebin.com/jgTM7aLA
让我的功能变得更好的建议非常好用:)
编辑
预期输出：
0 =>
array (
'id' => '8',
'name' => ' Models',
'id_parent' => '0',
'ativo' => '1',
),
1 =>
array (
'id' => '6',
'name' => ' Stickers',
'id_parent' => '0',
'ativo' => '1',
),
2 =>
array (
'id' => '9',
'name' => ' Notebook',
'id_parent' => '6',
'ativo' => '1',
),
3 =>
array (
'id' => '24',
'name' => ' T-shirt',
'id_parent' => '8',
'ativo' => '1',
),
4 =>
array (
'id' => '25',
'name' => ' Basic',
'id_parent' => '24',
'ativo' => '1',
)... and ..etc类似这样，键0必须是搜索值，其他值不需要是树顺序，任何顺序都可以，只要获取所有值即可。
换句话说：
获取一个数组节点，显示他和所有子代和孙代。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51457315
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