如何将一个树状数组转换为一个普通的二维数组
请教如何将一个树状数组转换为一个普通的二维数组

元素的顺序不要紧~~只要是这个结构就行了

例如
Array
(
[0] => Array
(
[kind_id] => 1103
[kind_fid] => 1101
[kind_name] => asdfsadf
[children] => Array
(
[0] => Array
(
[kind_id] => 1109
[kind_fid] => 1103
[kind_name] => testt
[children] => Array
(
)

)

)

)

[1] => Array
(
[kind_id] => 1104
[kind_fid] => 1101
[kind_name] => sdfsdf
[children] => Array
(
[0] => Array
(
[kind_id] => 1110
[kind_fid] => 1104
[kind_name] => test222

[children] => Array
(
)

)

)

)

[2] => Array
(
[kind_id] => 1107
[kind_fid] => 1101
[kind_name] => aaaaaaaa
[children] => Array
(
)

)

)


转为
Array
(
[0] => Array
(
[kind_id] => 1103
[kind_fid] => 1101
[kind_name] => asdfsadf
)
[1] => Array
(
[kind_id] => 1109
[kind_fid] =>1103
[kind_name] => asdfsadf
)
[2] => Array
(
[kind_id] => 1104
[kind_fid] => 1101
[kind_name] => asdfsadf
)
[3] => Array
(
[kind_id] => 1110
[kind_fid] => 1104
[kind_name] => asdfsadf
)
[4] => Array
(
[kind_id] => 1107
[kind_fid] => 1101
[kind_name] => asdfsadf

)

)


[解决办法]

$ar = array (
  0 => 
  array (
    'kind_id' => '1103',
    'kind_fid' => '1101',
    'kind_name' => 'asdfsadf',
    'children' => 
    array (
      0 => 
      array (
        'kind_id' => '1109',
        'kind_fid' => '1103',
        'kind_name' => 'testt',
        'children' => 
        array (
        ),
      ),
    ),
  ),
  1 => 
  array (
    'kind_id' => '1104',
    'kind_fid' => '1101',
    'kind_name' => 'sdfsdf',
    'children' => 
    array (
      0 => 
      array (
        'kind_id' => '1110',
        'kind_fid' => '1104',
        'kind_name' => 'test222',
        'children' => 
        array (
        ),
      ),
    ),
  ),
  2 => 
  array (
    'kind_id' => '1107',
    'kind_fid' => '1101',
    'kind_name' => 'aaaaaaaa',
    'children' => 
    array (
    ),
  ),
);

print_r(untree($ar));

function untree($ar) {
  $res = array();
  foreach($ar as $v) {
    $t = $v['children'];
    unset($v['children']);
    $res[] = $v;
    if($t) $res = array_merge($res, untree($t));
  }
  return $res;
}

Array
(
[0] => Array
(
[kind_id] => 1103
[kind_fid] => 1101
[kind_name] => asdfsadf
)

[1] => Array
(
[kind_id] => 1109

[kind_fid] => 1103
[kind_name] => testt
)

[2] => Array
(
[kind_id] => 1104
[kind_fid] => 1101
[kind_name] => sdfsdf
)

[3] => Array
(
[kind_id] => 1110
[kind_fid] => 1104
[kind_name] => test222
)

[4] => Array
(
[kind_id] => 1107
[kind_fid] => 1101
[kind_name] => aaaaaaaa
)

)