html+js:
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <title>城市联动示例</title> </head> <body> <select name="province" id="province" onchange="loadRegion('province',2,'city','{:U('Index/getRegion')}');"> <option value="0" selected>省份/直辖市</option><volist name="province" id="vo"> <option value="{$vo.id}" >{$vo.name}</option></volist> </select> <select name="city" id="city" onchange="loadRegion('city',3,'town','{:U('Index/getRegion')}');"> <option value="0">市/县</option> </select> <select name="town" id="town"> <option value="0">镇/区</option> </select> </body> <script type="text/javascript" src="__PUBLIC__/js/jquery-1.8.0.min.js"></script> <script> function loadRegion(sel,type_id,selName,url){ jQuery("#"+selName+" option").each(function(){ jQuery(this).remove(); }); jQuery("<option value=0>请选择</option>").appendTo(jQuery("#"+selName)); if(jQuery("#"+sel).val()==0){ return; } jQuery.getJSON(url,{pid:jQuery("#"+sel).val(),type:type_id}, function(data){ if(data){ jQuery.each(data,function(idx,item){ jQuery("<option value="+item.id+">"+item.name+"</option>").appendTo(jQuery("#"+selName)); }); }else{ jQuery("<option value='0'>请选择</option>").appendTo(jQuery("#"+selName)); } } ); } </script> </html>
php:
<?php namespace HomeController; use ThinkController; class IndexController extends Controller{ /** * 用户信息查询 */ public function index(){ $province = M('Tree')->where ( array('pid'=>1) )->select (); $this->assign('province',$province); $this->display(); } public function getRegion(){ $Region=M("Tree"); $map['pid']=$_REQUEST["pid"]; $map['type']=$_REQUEST["type"]; $list=$Region->where($map)->select(); echo json_encode($list); } }
sql语句:
DROP TABLE IF EXISTS `gc_tree`; CREATE TABLE `gc_tree` ( `id` int(5) unsigned NOT NULL AUTO_INCREMENT, `pid` int(5) unsigned NOT NULL DEFAULT '0', `name` varchar(120) DEFAULT NULL, `type` tinyint(1) DEFAULT '2', PRIMARY KEY (`id`) ) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
数据文件:链接: https://pan.baidu.com/s/1jHMAxCU 密码: 5y79