php根据二维数组中的某个键值进行分组并合并数据

Question

$data(0=>array( 'city'=>'长沙', 'addressid'=>1, 'ordersn'=>'456786a', 'goods'=>'口红' ), 1=>array( 'city'=>'长沙', 'addressid'=>1, 'ordersn'=>'fdsdab', 'goods'=>'洗面奶' ), 2=>array( 'city'=>'株洲', 'addressid'=>2, 'ordersn'=>'fdasad', 'goods'=>'爽肤水' ), ); 以addressid分组，相同的addressid合并到同一个数组里，变以下这样 $data(0=>array( 'city'=>'长沙', 'addressid'=>1, 'ordersn'=>'456786a,fdsdab', 'goods'=>'口红,洗面奶' ), 1=>array( 'city'=>'株洲', 'addressid'=>2, 'ordersn'=>'fdasad', 'goods'=>'爽肤水' ), );