PHP 遍历数组并插入键/值

Question

我有一个我正在使用的员工数据数组，我将其转换为JSON并将其传递给插件以创建组织结构图。组织结构图有多个级别，我的目标是对这些级别进行颜色编码以显示不同的组织。

我的数组是嵌套的，具有manager和children。

我正在尝试弄清楚如何遍历此数组并为不同级别分配颜色。

例如，数组的第一级将是蓝色，下一级将是红色，依此类推。我需要做的就是添加一个键用于class，然后添加其值，该值将是 levelx(其中 x 是它的深度级别数(。

这里的最终目标只是能够弄清楚如何在同一级别上的所有记录上添加相同的键/值。

下面是一个class key正在运行的数组示例。

是否有任何PHP函数可以确定其在嵌套数组中的级别，从而使这更容易？

Array
(
    [0] => Array
        (
            [QID] => Q1234
            [MgrQID] => Array
                (
                )
            [NTID] => xxxxx
            [MgrNTID] => xxxx
            [title] => xxxx
            [MgrName] => xxxx
            [name] => Bob Jones
            [class] => level1
            [CountOfDirects] => 9
            [children] => Array
                (
                    [0] => Array
                        (
                            [QID] => Q56789
                            [MgrQID] => 1234
                            [NTID] => xxxx
                            [MgrNTID] => xxxx
                            [title] => xxxx
                            [MgrName] => xxxx
                            [name] => Tim Cook
                            [class] => level2
                            [CountOfDirects] => 0
                            [children] => Array
                                (
                                )
                        )
                    [1] => Array
                        (
                            [QID] => Q5678
                            [MgrQID] => Q1234
                            [NTID] => xxxxx
                            [MgrNTID] => xxxx
                            [title] => xxxx
                            [MgrName] => xxxx
                            [name] => Bob Tom
                            [class] => level2
                            [CountOfDirects] => 0
                            [children] => Array
                                (
                                )
                        )

                    [2] => Array
                        (
                            [QID] => Q9999
                            [MgrQID] => Q1234
                            [NTID] => xxxx
                            [MgrNTID] => xxxx
                            [title] => xxxx
                            [MgrName] => xxxx
                            [name] => xxxx
                            [class] => level2
                            [CountOfDirects] => 0
                            [children] => Array
                                (
                                )
                        )
                    [3] => Array
                        (
                            [QID] => Q6665
                            [MgrQID] => Q1234
                            [NTID] => xxxx
                            [MgrNTID] => xxxx
                            [title] => xxxx
                            [MgrName] => xxxx
                            [name] => xxxx
                            [class] => level2
                            [CountOfDirects] => 6
                            [children] => Array
                                (
                                    [0] => Array
                                        (
                                            [QID] => Q4322
                                            [MgrQID] => Q6665
                                            [NTID] => xxxx
                                            [MgrNTID] => xxxx
                                            [title] => xxxx
                                            [MgrName] => xxxx
                                            [name] => xxxx
                                            [class] => level3
                                            [CountOfDirects] => 0
                                            [children] => Array
                                                (
                                                )
                                        )
                                    [1] => Array
                                        (
                                            [QID] => Q3333
                                            [MgrQID] => Q6665
                                            [NTID] => xxxx
                                            [MgrNTID] => xxxx
                                            [title] => xxxx
                                            [MgrName] => xxxx
                                            [name] => xxxx
                                            [class] => level3
                                            [CountOfDirects] => 0
                                            [children] => Array
                                                (
                                                )
                                        )

                                )
                        )

                )
        )
)

Answer 1

我会创建一个函数来递归地遍历数组：

function setLevel(&$arr, $level)
{
    foreach ($arr as &$element) {
        $element['class'] = 'level-' . $level;
        setLevel($element['children'], $level + 1);
    }
}
setLevel($arr, 1);

请参阅演示。