在PHP中从数组创建多维树对象

function createTree($array) {
    $tree = new Tree(); // 创建树对象

    foreach ($array as $item) {
        $node = new Node($item['id']); // 创建节点对象

        if (isset($item['children'])) {
            $children = createTree($item['children']); // 递归创建子树对象
            $node->setChildren($children); // 设置节点的子节点
        }

        $tree->addNode($node); // 将节点添加到树中
    }

    return $tree;
}

class Tree {
    private $root;

    public function addNode($node) {
        // 添加节点到树中的逻辑
    }
}

class Node {
    private $id;
    private $children;

    public function __construct($id) {
        $this->id = $id;
        $this->children = [];
    }

    public function setChildren($children) {
        // 设置子节点的逻辑
    }
}

$array = [
    [
        'id' => 1,
        'children' => [
            [
                'id' => 2,
                'children' => [
                    [
                        'id' => 3
                    ],
                    [
                        'id' => 4
                    ]
                ]
            ],
            [
                'id' => 5
            ]
        ]
    ],
    [
        'id' => 6
    ]
];

$tree = createTree($array);