21,886
社区成员
发帖
与我相关
我的任务
分享
$aa1 = [
'0'=>[
'aa'=>'1',
'bb'=>'2',
],
'1'=>[
'aa'=>'1',
'bb'=>'3',
],
];
$aa2 = [];
foreach($aa1 as $v) {
if(! isset($aa2[$v['aa']])) $aa2[$v['aa']]['aa'] = $v['aa'];
$aa2[$v['aa']]['bb'][] = $v['bb'];
}
$aa2 = array_values($aa2);
print_r($aa2);
Array
(
[0] => Array
(
[aa] => 1
[bb] => Array
(
[0] => 2
[1] => 3
)
)
)