数组转json结构的转换

我的数组是Array
(
[1] => Array
(
[aid] => 1
[pid] => 0
[brand] => young
[id] => 2
[uname] => young1
[groups] => 3
[sub] => Array
(
[2] => Array
(
[aid] => 1
[pid] => 2
[brand] => young
[id] => 3
[uname] => young2
[groups] => 4
)

[3] => Array
(
[aid] => 1
[pid] => 2
[brand] => young
[id] => 4
[uname] => young3
[groups] => 4
)

)

)这样的
我用json转是这样的

如何把画圈的去掉，因为这样app解析不了

回复讨论(解决方案)

$new_data = array();foreach ($data as $itm) {	$itm['sub'] = array_values($itm['sub']);	$new_data[] = $itm;}