等待排序数据为
$array = array( 0=>array("","河北"), 1=>array("","北京"), 2=>array(0,"保定"), 3=>array(1,"海淀"), 4=>array(3,"中关村"), 5=>array(2,"涿州") );
处理后返回如下:
河北
-保定
--涿州
北京
-海淀
--中关村
function typeArray($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]." " ; } return $con ; }