我希望使用递归函数将多维数组转换为另一个多维数组。
源数组：
Array
(
[1] => Array
(
[id] => 1
[source_name] => kk56ca1d0f2378f
[company_id] => 1
[lft] => 1
[rgt] => 18
[parent_id] => 0
[children] => Array
(
[2] => Array
(
[id] => 2
[source_name] => kk56ca1d17f3f63
[company_id] => 1
[lft] => 2
[rgt] => 3
[parent_id] => 1
[children] => Array
(
)
)
[3] => Array
(
[id] => 3
[source_name] => kk56ca1d1ebe975
[company_id] => 1
[lft] => 4
[rgt] => 13
[parent_id] => 1
[children] => Array
(
[6] => Array
(
[id] => 6
[source_name] => kk56ca1fc882ac0
[company_id] => 1
[lft] => 5
[rgt] => 10
[parent_id] => 3
[children] => Array
(
)
)
)
)
)
)
)
我需要进入
的格式 Array
(
[0] => Array
(
[id] => 1
[text] => kk56ca1d0f2378f
[parent_id] => 0
[nodes] => Array
(
[0] => Array
(
[id] => 2
[text] => kk56ca1d17f3f63
[parent_id] => 1
[nodes] => Array
(
)
)
[1] => Array
(
[id] => 3
[text] => kk56ca1d1ebe975
[parent_id] => 1
[nodes] => Array
(
[0] => Array
(
[id] => 6
[text] => kk56ca1fc882ac0
[parent_id] => 3
[nodes] => Array
(
)
)
[1] => Array
(
[id] => 15
[text] => kk
[parent_id] => 3
[nodes] => Array
(
)
)
)
)
)
)
)
我一直在努力工作几个小时而且无处可去。任何帮助都会非常感激。
源数组具有关联索引（尽管它们是数字），目标数组具有数字索引。除此之外，只需要删除一些索引并更改一些名称。
编辑：
具体变化：
我对递归的经验不多，所以我一直没有尝试。
这是我能想到的：
// pass array of nodes
function convert_array($from){
// this is a node
if(isset($from['source_name']))
{
$temp = array();
$temp['id'] = $from['id'];
convert_array($from['children']);
}
// this is an array of nodes
else
{
foreach($from as $arr)
{
$ret = convert_array($arr);
print_r($ret);
}
}
}
但是我无法理解要返回的数据以及新数组如何从返回值构建。
答案 0 :(得分：1)
这里的工作功能：
function convert_array( $array )
{
$retval = array();
foreach( $array as $row )
{
$child = array();
$child['id'] = $row['id'];
$child['text'] = $row['source_name'];
$child['parent_id'] = $row['parent_id'];
if( count( $row['children'] ) )
{ $child['nodes'] = convert_array( $row['children'] ); }
else
{ $child['nodes'] = array(); }
$retval[] = $child;
}
return $retval;
}
我认为这是不言自明的，BTW：我们初始化一个空数组（$retval），然后我们通过所有数组参数执行foreach循环：对于每个元素，我们初始化一个新数组我们将id，source_name添加为text和parent_id;如果children索引有元素，我们执行递归调用来填充nodes数组索引，否则我们将它设置为空数组。