php获取当前栏目下所有子级id
文章描述：
php指定id获取下面的所有子级ID方法
// 查找所有子级id方法
function getAllChildren($parentId, $items) {
$children = array();
foreach ($items as $item) {
if ($item['p_id'] == $parentId) {
$children[] = $item;
$grandChildren = getAllChildren($item['id'], $items);
if (!empty($grandChildren)) {
$children = array_merge($children, $grandChildren);
}
}
}
return $children;
}
// 示例数据
$items = [
['id' => 1, 'name'=>'手机', 'p_id' => 0],
['id' => 2, 'name'=>'电脑', 'p_id' => 0],
['id' => 3, 'name'=>'vivo', 'p_id' => 1],
['id' => 4, 'name'=>'oppo', 'p_id' => 1],
['id' => 5, 'name'=>'戴尔电脑', 'p_id' => 2],
['id' => 6, 'name'=>'iqoo7', 'p_id' => 3],
// ... 更多项目
];
// 获取ID为1的所有子项
$children = getAllChildren(1, $items);
print_r($children);结果:
(
[0] => Array
(
[id] => 3
[name] => vivo
[p_id] => 1
)
[1] => Array
(
[id] => 6
[name] => iqoo7
[p_id] => 3
)
[2] => Array
(
[id] => 4
[name] => oppo
[p_id] => 1
)
)
// 把顶级也包含进去
$arr = [1];
foreach ($children as $child) {
array_push($arr,$child['id']);
}
print_r($arr);结果:
Array
(
[0] => 1
[1] => 3
[2] => 6
[3] => 4
)
发布时间：2024/10/30
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