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*/
$arr =array(
  array('1','user','N',
      array('2','user1','s',
          array('3','user2','o',
              array('4','user3','p',
                  array('5','user4','i',
                      array('6','user5','y',
                          array('7','user6','t',
                     ),
                   ),
                 ),
              ),
           ),
         ),
       ),
    );

$user =[];
array_walk_recursive($arr, function($value)use (&$user){
    array_push($user,$value);
});

//打印
Array
(
    [0] => 1
    [1] => user
    [2] => N
    [3] => 2
    [4] => user1
    [5] => s
    [6] => 3
    [7] => user2
    [8] => o
    [9] => 4
    [10] => user3
    [11] => p
    [12] => 5
    [13] => user4
    [14] => i
    [15] => 6
    [16] => user5
    [17] => y
    [18] => 7
    [19] => user6
    [20] => t
)