php 地区分类排序算法_PHP教程

写一个函数，将数据
$array = array(
    0=>array("","河北"),
    1=>array("","北京"),
    2=>array(0,"保定"),
    3=>array(1,"海淀"),
    4=>array(3,"中关村"),
    5=>array(2,"涿州")
);
处理后返回如下：
河北
-保定
--涿州
北京
-海淀
--中关村

复制代码 代码如下:

function typeArray($array){
        $con = null;
        foreach ($array as $k=>$v){
            $na[$k] = is_numeric($v[0]) ? $na[$v[0]].$k."|" : $k."|";
        }
        asort($na); //排序
        foreach ($na as $k=>$v){
          $s = substr_count($v,"|");
          $con .= str_repeat("-",($s-1)).$array[$k][1]."\n";
        }
        return $con;
    }

http://www.bkjia.com/PHPjc/327956.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/327956.htmlTechArticle写一个函数，将数据 $array = array( 0=array("","河北"), 1=array("","北京"), 2=array(0,"保定"), 3=array(1,"海淀"), 4=array(3,"中关村"), 5=array(2,"涿州") ); 处理...