php数组根据某一个键值，把相同键值的合并生成一个新的二维数组

http://blog.csdn.net/xyzchenxiaolin/article/details/51700485

源数据：

$infos = array(

        array(

                'a' => 36,

                'b' => 'xa',

                'c' => '2015-08-28 00:00:00',

                'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'

        ),

        array(

                'a' => 3,

                'b' => 'vd',

                'c' => '2015-08-20 00:00:00',

                'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'

        ),

        array(

                'a' => 6,

                'b' => 'wwe',

                'c' => '2015-08-28 00:00:00',

                'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'

        ),

        array(

                'a' => 36,

                'b' => 'se',

                'c' => '2015-08-28 00:00:00',

                'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'

        ),

        array(

                'a' => 6,

                'b' => 'aw',

                'c' => '2015-08-28 00:00:00',

                'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'

        ),

        array(

                'a' => 36,

                'b' => 'bv',

                'c' => '2015-08-28 00:00:00',

                'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'

        ),

        array(

                'a' => 12,

                'b' => 'xx',

                'c' => '2015-08-27 00:00:00',

                'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'

        )

);

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

处理要求：将数组中a相同的二维数组合并到一个数组中，生成一个新的数组

代码：

php数组根据某一个键值，把相同键值的合并生成一个新的二维数组的相关教程结束。