我们经常拿到一个二维数组出来，会发现结果和自己想要的有些偏差，可能需要根据二维数组里的某个字段对数组分组。
先来看以下数组，
Array
(
=> Array
(
=> 1
=> 2
=> 1
=> 分组1
=> 2016-12-02 11:39:34
)
=> Array
(
=> 2
=> 31
=> 2
=> 分组1
=> 2016-12-12 11:39:50
)
=> Array
(
=> 3
=> 31
=> 4
=> 分组2
=> 2016-12-02 11:40:01
)
=> Array
(
=> 4
=> 2
=> 5
=> 分组2
=> 2016-12-07 10:21:40
)
=> Array
(
=> 5
=> 2
=> 3
=> 分组2
=> 2016-12-07 10:21:51
)
=> Array
(
=> 6
=> 2
=> 2
=> 分组3
=> 2016-12-07 10:21:56
)
=> Array
(
=> 7
=> 4
=> 2
=> 分组3
=> 2016-12-07 10:22:10
)
)
页:
[1]