在PHP中从多维数组中检索信息

foreach ($myArray as $key1 => $value1) {
    foreach ($value1 as $key2 => $value2) {
        // 访问$value2或$key2
    }
}

function searchInArray($array, $searchKey) {
    foreach ($array as $key => $value) {
        if ($key === $searchKey) {
            // 找到了匹配的键
            return $value;
        }
        if (is_array($value)) {
            // 递归搜索子数组
            $result = searchInArray($value, $searchKey);
            if ($result !== null) {
                return $result;
            }
        }
    }
    return null; // 没有找到匹配的键
}

$result = searchInArray($myArray, 'key2');