$arr = array(
array(
'user_id' => 100,
'goods_id' => 10,
'number' => 1,
),
array(
'user_id' => 100,
'goods_id' => 10,
'number' => 2,
),
array(
'user_id' => 100,
'goods_id' => 10,
'number' => 2,
),
array(
'user_id' => 100,
'goods_id' => 10,
'number' => 2,
),
);
理想结果:
$arr = array(
array(
'user_id'=> 100,
'goods_id' => 10,
'number' => 7,
),
);
太棒了.将usre_id看成唯一,很好的思路.谢谢.