PHP学习笔记:Array--数组合拼函数

 解决了前几天的问题 多维数组降为一维数组  这样就不用foreach 或者for循环了

 1 /* 多维数组降为一维数组*/
 2 $arr =array(
 3   array('1','user','N',
 4       array('2','user1','s',
 5           array('3','user2','o',
 6               array('4','user3','p',
 7                   array('5','user4','i',
 8                       array('6','user5','y',
 9                           array('7','user6','t',
10                      ),
11                    ),
12                  ),
13               ),
14            ),
15          ),
16        ),
17     );
18 
19 $user =[];
20 array_walk_recursive($arr, function($value)use (&$user){
21     array_push($user,$value);
22 });
23 
24 //打印
25 Array
26 (
27     [0] => 1
28     [1] => user
29     [2] => N
30     [3] => 2
31     [4] => user1
32     [5] => s
33     [6] => 3
34     [7] => user2
35     [8] => o
36     [9] => 4
37     [10] => user3
38     [11] => p
39     [12] => 5
40     [13] => user4
41     [14] => i
42     [15] => 6
43     [16] => user5
44     [17] => y
45     [18] => 7
46     [19] => user6
47     [20] => t
48 )