我有一个带有子元素的多维数组，我想从数组中的每个父元素和子元素获取序号，格式为：
1.1.2-第一个问题，第一个孩子，第一个孩子的第一个孩子
2.1.2-第二个问题，第一个孩子，第一个孩子的第二个孩子
这是我正在使用的数组的递归函数
function buildTree(array $elements, $parentId = 0) {
$branch = array();
foreach ($elements as $element) {
if ($element['parentId'] == $parentId) {
$children = buildTree($elements, $element['id']);
if ($children) {
$element['children'] = $children;
}
$branch[] = $element;
}
}
return $branch;
}
$tree = buildTree($questions);
这是数组的示例结果
Array
(
[0] = Array
(
[id] = 156
[question] = New Question
[topicId] = 23
[type] = 2
[sortIndex] = 1
[parentId] =
[parentOption] =
[children] =Array
(
[0] = Array
(
[id] => 161
[question] = First Child to First Question
[topicId] = 23
[type] = 2
[sortIndex] = 2
[parentId] = 156
[parentOption] = Yes
[children] = Array
(
[0] = Array
(
[id] = 163
[question] = First Child to First Child
[topicId] = 23
[type] = 2
[sortIndex] =; 5
[parentId] = 161
[parentOption] = Yes
)
)
)
[1] = Array
(
[id] => 162
[question] = Second Child to first question
[topicId] =; 23
[type] = 2
[sortIndex] = 3
[parentId] = 156
[parentOption] = Yes
[children] = Array
(
[0] = Array
(
[id] = 164
[question] = First child to second child
[topicId] = 23
[type] = 2
[sortIndex] = 4
[parentId] = 162
[parentOption] = Yes
)
)
)
)
)
)
我正在使用此功能以递归方式获取所有项目。
function recursive($array, $level = 1){
$i = 1;
foreach($array as $key => $value){
//If $value is an array.
if(is_array($value)){
//We need to loop through it.
recursive($value, $level + 1);
} else{
//It is not an array, so print it out.
echo str_repeat("-", $level), $value, '<br>';
}
}
}
任何想法如何实现我的目标？