Question

我有一个多维数组（树视图），我正在尝试从中创建一个简单的数组。

树视图数组示例：

$arr = [
    0 => [
        'id' => 1,
        'children' => [
            0 => [
                'id' => 2,
                'children' => [
                    0 => [
                        'id' => 3
                    ]
                ]
            ]
        ]
    ]
];

我想要的是获取一个数组作为键，父ID作为值的数组。

示例：

$arr = [
    1 => 0,
    2 => 1,
    3 => 2
];

Answer 1

与此同时，我解决了这个问题：

$result = [];
function recur($arr, $parent = 0) {
    global $result;

    foreach ($arr as $x ) {

        $result[$x['id']] = $parent;
        if (isset($x['children'])) {
            recur($x['children'], $x['id']);
        }
    }

    return 1;
}

recur($arr);

Answer 2

function relation($parent, $child, &$result)
{
    if($child['children']) {
        $result[$child['id']] = $parent;
        relation($child['id'], $child['children'], $result);
    }else{
        $result[$child['id']] = $parent;
    }
}

$arr1 = array('id'=>3);
$arr2 = array('id'=>2, 'children'=>$arr1);
$arr3 = array('id'=>1, 'children' => $arr2);
$result = array();

relation(0, $arr3, $result);
var_dump($result);

从treeview到简单的数组

2 个答案: