1 <?php
 2 
 3 /**
 4  * 合并统计数据
 5  * @param $key_column         string  统计参照字段名
 6  * @param $_list_column       array 统计内容字段 统计字段默认值0
 7  * @param mixed ...$_list_arr array 需合并统计内容
 8  * @return array
 9  */
10 function statArrMergeHandle($key_column, $_list_column, ...$_list_arr)
11 {
12   //整理统计参照字段内容
13   $_total_key = array();
14   foreach ($_list_arr as $_arr) $_total_key = array_merge($_total_key, array_column($_arr, $key_column));
15   $_total_key = array_unique($_total_key);
16   sort($_total_key);
17 
18 
19   $_return_data = array();
20 
21   //组合返回数组统计字段及内容，默认值0（根据情况自行设置默认值）
22   $_modal_key = array();
23   foreach ($_list_column as $_column) $_modal_key[$_column] = 0;
24 
25   foreach ($_total_key as $key => $item) {
26     $_arr_key = $_modal_key;
27     $_arr_key[$key_column] = $item;
28 
29     foreach ($_list_arr as $_arr) {//遍历需合并数据结果
30       foreach ($_arr as $em) {
31         if ($item == $em[$key_column]) {
32           foreach ($_list_column as $_column) {
33 
34             //统计结果大于0，更新相应统计字段数据（判断数组内容是否存在）
35             if ($em[$_column] > 0) $_arr_key[$_column] = $em[$_column];
36           }
37         }
38       }
39     }
40     $_return_data[$key] = $_arr_key;
41     unset($_arr_key);
42   }
43 
44   return $_return_data;
45 }
46 
47 
48 $score_a = array(
49   array('grade' => '一年级', 'sum_a' => 20),
50   array('grade' => '二年级', 'sum_a' => 21),
51   array('grade' => '三年级', 'sum_a' => 15),
52   array('grade' => '四年级', 'sum_a' => 3),
53   array('grade' => '五年级', 'sum_a' => 14)
54 );
55 
56 $score_b = array(
57   array('grade' => '一年级', 'sum_b' => 21),
58   array('grade' => '二年级', 'sum_b' => 14),
59   array('grade' => '四年级', 'sum_b' => 40),
60   array('grade' => '五年级', 'sum_b' => 12),
61   array('grade' => '六年级', 'sum_b' => 25),
62 );
63 
64 $score_c = array(
65   array('grade' => '一年级', 'sum_c' => 45),
66   array('grade' => '三年级', 'sum_c' => 24),
67   array('grade' => '四年级', 'sum_c' => 5),
68   array('grade' => '六年级', 'sum_c' => 12)
69 );
70 
71 $score_d = array(
72   array('grade' => '一年级', 'sum_d' => 12),
73   array('grade' => '二年级', 'sum_d' => 45),
74   array('grade' => '六年级', 'sum_d' => 12)
75 );
76 
77 $_last_data = statArrMergeHandle('grade', array('sum_a', 'sum_b', 'sum_c', 'sum_d'), $score_a, $score_b, $score_c, $score_d);