PHP 递归改变二维数组的值的问题

发布网友发布时间：2022-04-23 23:03

共1个回答

热心网友时间：2023-10-13 01:04

//先来个check方法，得弄方法啊，不然不能递归
    public function check($result, $arr, $r) {
        $re=$r;
            foreach ($result as $value) {
                if ($arr[$re]['name'] == $value['name'] || $arr[$re]['uid'] == $value['uid']) {

                    $re = $re + 1;
                    $this->check($result, $arr, $re);
                }
            }
            return $re;

        }
//以下为主方法
public function xxxxxxxxxxxxxxxx() {

        $arr = array(
            array('id' => 1, 'name' => 'aaa', 'uid' => 1),
            array('id' => 2, 'name' => 'bbb', 'uid' => 2),
            array('id' => 3, 'name' => 'ccc', 'uid' => 3),
            array('id' => 4, 'name' => 'ddd', 'uid' => 4),
            array('id' => 5, 'name' => 'ccc', 'uid' => 3),
            array('id' => 6, 'name' => 'bbb', 'uid' => 2),
            array('id' => 7, 'name' => 'bbb', 'uid' => 2),
            array('id' => 8, 'name' => 'fff', 'uid' => 6),
            array('id' => 9, 'name' => 'ccc', 'uid' => 3),
            array('id' => 10, 'name' => 'bbb', 'uid' => 2),
            array('id' => 11, 'name' => 'ddd', 'uid' => 4),
            array('id' => 12, 'name' => 'eee', 'uid' => 5),
            array('id' => 13, 'name' => 'fff', 'uid' => 6),
        );

        $result = array();
        for ($i = 1; $i <= 5; $i++) {
            $r = $i * 2;
            $r = $r -2;
            $r = $this->check($result, $arr, $r);
            $result[] = $arr[$r];
        }
        var_mp($result);
    }

输出结果为

array (size=5)
0 =>
array (size=3)
'id' => int 1
'name' => string 'aaa' (length=3)
'uid' => int 1
1 =>
array (size=3)
'id' => int 3
'name' => string 'ccc' (length=3)
'uid' => int 3
2 =>
array (size=3)
'id' => int 6
'name' => string 'bbb' (length=3)
'uid' => int 2
3 =>
array (size=3)
'id' => int 8
'name' => string 'fff' (length=3)
'uid' => int 6
4 =>
array (size=3)
'id' => int 11
'name' => string 'ddd' (length=3)
'uid' => int 4

（我午饭没吃帮你弄这个，真够闲的，采纳不采纳看着办）