PHP city-linked classification sorting program_PHP tutorial

A netizen wrote a PHP classification program for linking prefectures and cities. You can refer to it.

Write a function to convert the data

代码如下	复制代码
$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") );

After processing, the return is as follows:
Hebei
-Baoding
--Zhuozhou
Beijing
-Haidian
--Zhongguancun

The code is as follows  代码如下 复制代码 function typeArray($array){    $con = null;    foreach ($array as $k=>$v){         $na[$k] = is_numeric($v[0]) ? $na[$v[0]].$k."|" : $k."|";     }    asort($na);    foreach ($na as $k=>$v){      $s = substr_count($v,"|");       $con .= str_repeat("-",($s-1)).$array[$k][1]."n";     }     return $con; }	Copy code
function typeArray($array){

$con = null; foreach ($array as $k=>$v){

$na[$k] = is_numeric($v[0]) ? $na[$v[0]].$k."|" : $k."|";

http://www.bkjia.com/PHPjc/631581.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631581.htmlTechArticleA php classification program for prefecture-city linkage written by a netizen, you can refer to it. Write a function to convert the data. The code is as follows. Copy the code $array = array( 0=array(,Hebei), 1=array(,Beijing),...