我有这个代码列表的类别和子类别，但我需要它在childCategories里面，我已经设法在第二级添加，如果有超过第二级，我将无法添加它。场景将是这样的： -
父类别是＆＃34;电子＆＃34;而子类别是＆＃34;智能手机＆＃34;和智能手机内部的笔记本电脑一样，有华硕和三星以及同样的笔记本电脑。在笔记本电脑类别中，有＆＃34; Alienware系列＆＃34;和＆＃34; Vostro系列＆＃34;。
电子
- ＆GT;智能手机
- ＆GT;华硕
- ＆GT;三星
- ＆GT;笔记本电脑
- ＆GT;惠普
- ＆GT;戴尔---＆gt; Alienware系列，Vostro系列
我希望数组就像这样......
Array
(
[categoryId] => 3
[title] => Electronic
[bannerImage] => elect.jpg
[childCategories] => Array
(
Array
(
[categoryId] => 4
[title] => Smartphone
[bannerImage] => smartphone-banner.png
[childCategories] => Array
(
Array
(
[categoryId] => 4
[title] => Asus
[bannerImage] =>
[childCategories] => Array
(
)
),
Array
(
[categoryId] => 5
[title] => Samsung
[bannerImage] =>
[childCategories] => Array
(
)
)
),
Array
(
[categoryId] => 6
[title] => Laptops
[bannerImage] =>
[childCategories] => Array
(
Array
(
[categoryId] => 7
[title] => HP
[bannerImage] =>
[childCategories] => Array
(
)
),
Array
(
[categoryId] => 8
[title] => Dell
[bannerImage] =>
[childCategories] => Array
(
Array
(
[categoryId] => 9
[title] => Alienware Series
[bannerImage] =>
[childCategories] => Array
(
)
),
Array
(
[categoryId] => 10
[title] => Vostro Series
[bannerImage] =>
[childCategories] => Array
(
)
)
),
)
)
)
)
)
这是我的代码： -
if($category->getData('level') > 2) {
$temp_array = array();
$paths = explode("/", $category->getData('path'));
for ($x=0; $x <= count($paths); $x++) {
if($x == 0 || $x == 1) {
unset($paths[$x]);
}
else {
$temp_array['categoryId'] = $category->getData('entity_id');
$temp_array['title'] = $category->getData('name');
$temp_array['bannerImage'] = $category->getData('image');
$temp_array['childCategories'] = array();
$temp_array['path'] = $category->getData('path');
$temp_array['parent'] = $category->getData('parent_id');
$temp_array['level'] = $category->getData('level');
$category_array[$category->getData('parent_id')]['childCategories'][$category->getData('entity_id')] = $temp_array;
}
}
}
请注意，如果将来会有更多的子类别要添加。因此它不能正常的数组赋值。
更新3
{
"3": {
"categoryId": "3",
"title": "Electronic",
"bannerImage": "elect.jpg",
"childCategories": [],
"parent": "2",
"path": "1/2/3"
},
"4": {
"categoryId": "4",
"title": "Smartphone",
"bannerImage": "smartphone-banner.png",
"childCategories": [],
"parent": "3",
"path": "1/2/3/4"
},
"5": {
"categoryId": "5",
"title": "Laptop",
"bannerImage": null,
"childCategories": [],
"parent": "3",
"path": "1/2/3/5"
},
"6": {
"categoryId": "6",
"title": "Health",
"bannerImage": null,
"childCategories": [],
"parent": "2",
"path": "1/2/6"
},
"7": {
"categoryId": "7",
"title": "Vitamin",
"bannerImage": null,
"childCategories": [],
"parent": "6",
"path": "1/2/6/7"
},
"9": {
"categoryId": "9",
"title": "Fashion",
"bannerImage": null,
"childCategories": [],
"parent": "2",
"path": "1/2/9"
},
"10": {
"categoryId": "10",
"title": "For Her",
"bannerImage": null,
"childCategories": [],
"parent": "9",
"path": "1/2/9/10"
},
"11": {
"categoryId": "11",
"title": "For Him",
"bannerImage": null,
"childCategories": [],
"parent": "9",
"path": "1/2/9/11"
},
"12": {
"categoryId": "12",
"title": "Samsung",
"bannerImage": null,
"childCategories": [],
"parent": "4",
"path": "1/2/3/4/12"
},
"13": {
"categoryId": "13",
"title": "Dell",
"bannerImage": null,
"childCategories": [],
"parent": "5",
"path": "1/2/3/5/13"
},
"14": {
"categoryId": "14",
"title": "Alienware",
"bannerImage": null,
"childCategories": [],
"parent": "13",
"path": "1/2/3/5/13/14"
},
"15": {
"categoryId": "15",
"title": "Vostro",
"bannerImage": null,
"childCategories": [],
"parent": "13",
"path": "1/2/3/5/13/15"
},
"timestamp": "2017-10-31 04:20:20"
}
答案 0 :(得分：0)
使用您的json输入数据：
$json='{
"3": {
"categoryId": "3",
"title": "Electronic",
"bannerImage": "elect.jpg",
"childCategories": [],
"parent": "2",
"path": "1/2/3"
},
"4": {
"categoryId": "4",
"title": "Smartphone",
"bannerImage": "smartphone-banner.png",
"childCategories": [],
"parent": "3",
"path": "1/2/3/4"
},
"5": {
"categoryId": "5",
"title": "Laptop",
"bannerImage": null,
"childCategories": [],
"parent": "3",
"path": "1/2/3/5"
},
"6": {
"categoryId": "6",
"title": "Health",
"bannerImage": null,
"childCategories": [],
"parent": "2",
"path": "1/2/6"
},
"7": {
"categoryId": "7",
"title": "Vitamin",
"bannerImage": null,
"childCategories": [],
"parent": "6",
"path": "1/2/6/7"
},
"9": {
"categoryId": "9",
"title": "Fashion",
"bannerImage": null,
"childCategories": [],
"parent": "2",
"path": "1/2/9"
},
"10": {
"categoryId": "10",
"title": "For Her",
"bannerImage": null,
"childCategories": [],
"parent": "9",
"path": "1/2/9/10"
},
"11": {
"categoryId": "11",
"title": "For Him",
"bannerImage": null,
"childCategories": [],
"parent": "9",
"path": "1/2/9/11"
},
"12": {
"categoryId": "12",
"title": "Samsung",
"bannerImage": null,
"childCategories": [],
"parent": "4",
"path": "1/2/3/4/12"
},
"13": {
"categoryId": "13",
"title": "Dell",
"bannerImage": null,
"childCategories": [],
"parent": "5",
"path": "1/2/3/5/13"
},
"14": {
"categoryId": "14",
"title": "Alienware",
"bannerImage": null,
"childCategories": [],
"parent": "13",
"path": "1/2/3/5/13/14"
},
"15": {
"categoryId": "15",
"title": "Vostro",
"bannerImage": null,
"childCategories": [],
"parent": "13",
"path": "1/2/3/5/13/15"
},
"timestamp": "2017-10-31 04:20:20"
}';
我使用的是非递归方法。把孩子抱在父母身上更多的是一种堆叠技术，我先培养最深的孩子，然后从＆＃34;底部开始锻炼。有关逐步说明，请参阅我的内联注释。
代码：（Demo）
$array=json_decode($json,true);
unset($array['timestamp']); // remove unwanted timestamp
uasort($array,function($a,$b){return substr_count($b['path'],'/')<=>substr_count($a['path'],'/');}); // sort by depth (deepest to shallowest)
foreach($array as $key=>&$subarray){
$data=array_intersect_key($subarray,['title'=>'','bannerImage'=>'','childCategories'=>'']); // store only vital data based on nominated keys
if(isset($array[$subarray['parent']])){
$array[$subarray['parent']]['childCategories'][$key]=$data; // insert into parent (on same level)
unset($array[$key]); // remove child from original "unnested" location
}else{
$subarray=$data; // no movement needed, just trim unwanted elements from subarray
}
}
ksort($array); // resort by first level keys, ASC
var_export($array);
这是输出：
array (
3 =>
array (
'title' => 'Electronic',
'bannerImage' => 'elect.jpg',
'childCategories' =>
array (
4 =>
array (
'title' => 'Smartphone',
'bannerImage' => 'smartphone-banner.png',
'childCategories' =>
array (
12 =>
array (
'title' => 'Samsung',
'bannerImage' => NULL,
'childCategories' =>
array (
),
),
),
),
5 =>
array (
'title' => 'Laptop',
'bannerImage' => NULL,
'childCategories' =>
array (
13 =>
array (
'title' => 'Dell',
'bannerImage' => NULL,
'childCategories' =>
array (
14 =>
array (
'title' => 'Alienware',
'bannerImage' => NULL,
'childCategories' =>
array (
),
),
15 =>
array (
'title' => 'Vostro',
'bannerImage' => NULL,
'childCategories' =>
array (
),
),
),
),
),
),
),
),
6 =>
array (
'title' => 'Health',
'bannerImage' => NULL,
'childCategories' =>
array (
7 =>
array (
'title' => 'Vitamin',
'bannerImage' => NULL,
'childCategories' =>
array (
),
),
),
),
9 =>
array (
'title' => 'Fashion',
'bannerImage' => NULL,
'childCategories' =>
array (
10 =>
array (
'title' => 'For Her',
'bannerImage' => NULL,
'childCategories' =>
array (
),
),
11 =>
array (
'title' => 'For Him',
'bannerImage' => NULL,
'childCategories' =>
array (
),
),
),
),
)