PHPの配列処理について

既存:
$arr = array(
Array('101-1148713','-68500','Gaoyan'),
Array('101-1148713','-1464.6','Gaoyan'),
Array ('101-1148712','11','Gaoyan'),
Array('101-1148713','98500','Gaoyan'),
Array('101-1177035','-11068.4',' Quan ')
);
$arr = array(
'Gao Yan'=>array(
'101-1148713'=>array('-68500','-1464.6','98500) に変換するにはどうすればよいですか'),

'101-1148712'=>array('11');
),
'全玮'=>array(
'101-1177035'=>array('-11 068.4' ))