用PHP把一個二維數組的相同健值進行歸類,如下:
//原始二維數組$info
Array
(
[0] => Array
(
[last_number] => 1
[goods_id] => 4028
[self_category_id] => 399
)
[1] => Array
(
[last_number] => 1
[goods_id] => 4031
[self_category_id] => 254
)
[2] => Array
(
[last_number] => 1
[goods_id] => 4023
[self_category_id] => 548
)
[3] => Array
(
[last_number] => 1
[goods_id] => 4027
[self_category_id] => 399
)
)
需要把上面的數組進行歸類成如下形式:
//結果$result
Array
(
[399] => Array
(
[0] => Array
(
[last_number] => 1
[goods_id] => 4028
[self_category_id] => 399
)
[1] => Array
(
[last_number] => 1
[goods_id] => 4027
[self_category_id] => 399
)
)
[254] => Array
(
[0] => Array
(
[last_number] => 1
[goods_id] => 4031
[self_category_id] => 254
)
)
[548] => Array
(
[0] => Array
(
[last_number] => 1
[goods_id] => 4023
[self_category_id] => 548
)
)
)
處理可以使用下面方法
$result= array();
if($info)
foreach ($info as $key => $value) {
$result[$value['self_category_id']][] = $value;
}