提问人：Adarsh Das 提问时间：12/3/2022 更新时间：12/3/2022 访问量：87
使用父级和子级结构 PHP 更改动态嵌套数组中的特定值
Change specific value in Dynamic nested array with parent and children structure PHP
问：
我有一个具有唯一 id 和名称的动态嵌套数组结构，需要更改给定特定 id 的 name 值。
我有一个带有结构的动态嵌套数组 `
$array = [
[
"id" => "31350880",
"name" => "HOD",
"children" => [
[
"id" => "57f94cd7",
"parent_id" => "31350880",
"name" => "New HOD",
"children" => [
[
"id" => "e7f1c88b",
"parent_id" => "57f94cd7",
"name" => "Gold",
"children" => [
]
]
]
]
]
],
[
"id" => "45881fa8",
"name" => "Pictures",
"children" => [
[
"id" => "770e6e20",
"parent_id" => "45881fa8",
"name" => "New Picture",
"children" => [
[
"id" => "a403a8fa",
"parent_id" => "770e6e20",
"name" => "Silver",
"children" => [
]
]
]
]
]
]
];
`
对于给定的 ID（unique），需要从数组中找到它，并将该节点的名称更改为特定名称。
例如： $id = ''770e6e20' 它是名为 “Pictures” 的父节点的子节点，需要找到具有特定 id 的子节点并更改其名称并检索其初始结构中的完整数组吗？
答：
0赞
Vasilis G.
12/3/2022
#1
这是一个递归函数，它获取数组、项目和要分配的新值，并执行就地修改：referenceidname
function modify_element_name(&$arr, $id, $name){
foreach($arr as $index => $item){
if($item['id'] === $id){
$arr[$index]['name'] = $name;
}
else {
if(count($item['children']) > 0){
modify_element_name($arr[$index]['children'], $id, $name);
}
}
}
}
调用方式如下：
modify_element_name($array, '770e6e20', 'New Picture Modified');
将修改数组：
Array
(
[0] => Array
(
[id] => 31350880
[name] => HOD
[children] => Array
(
[0] => Array
(
[id] => 57f94cd7
[parent_id] => 31350880
[name] => New HOD
[children] => Array
(
[0] => Array
(
[id] => e7f1c88b
[parent_id] => 57f94cd7
[name] => Gold
[children] => Array
(
)
)
)
)
)
)
[1] => Array
(
[id] => 45881fa8
[name] => Pictures
[children] => Array
(
[0] => Array
(
[id] => 770e6e20
[parent_id] => 45881fa8
[name] => New Picture Modified
[children] => Array
(
[0] => Array
(
[id] => a403a8fa
[parent_id] => 770e6e20
[name] => Silver
[children] => Array
(
)
)
)
)
)
)
)
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