多维JSON数组转到多个~ php数组不起作用

<?php
$jsonData = '{
    "data": [
        {
            "name": "John",
            "age": 30,
            "hobbies": ["reading", "swimming"]
        },
        {
            "name": "Jane",
            "age": 25,
            "hobbies": ["painting", "dancing"]
        }
    ]
}';

// 解析JSON数据
$data = json_decode($jsonData, true);

// 处理多维数组
function processArray($array) {
    $result = [];
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            $result[$key] = processArray($value);
        } else {
            $result[$key] = $value;
        }
    }
    return $result;
}

// 转换多维JSON数组为多个PHP数组
$phpArrays = [];
foreach ($data['data'] as $item) {
    $phpArrays[] = processArray($item);
}

// 打印结果
print_r($phpArrays);
?>

Array
(
    [0] => Array
        (
            [name] => John
            [age] => 30
            [hobbies] => Array
                (
                    [0] => reading
                    [1] => swimming
                )
        )
    [1] => Array
        (
            [name] => Jane
            [age] => 25
            [hobbies] => Array
                (
                    [0] => painting
                    [1] => dancing
                )
        )
)