easyui省市二级联动

                                easyui省市二级联动

1、[html]

    

        
所属区域:
        

            
            
        
    

2、[js]

3、[PHP]

    /**
    * @todo 得到省市信息，
     * 根据参数pid是否存在判断是省还是市
     */
    public function getprovincecityAction(){
        $pid = isset($_GET['pid']) ? (int)$_GET['pid'] : '';
        $where = [];
        $mArea = new AreaModel();
        if($pid){
            $info = $mArea->getOne([['id', $pid]]);
            $type = $info['type'];
            if($type == 3 || $type == 4 ){    //没有市的直接返回自己
                die(json_encode([['id'=>$info['id'],'name'=>$info['name']]]));
            }else{
                $where[] = ['pid', $pid];
            }
        }else{
            $where[] = ['pid', 0];
        }
        
        $areaList = $mArea->getList( $where, 'id,name');
        die(json_encode($areaList));
    }

4、[省市数据表结构]
    

CREATE TABLE `area` (
    `id` smallint(11) unsigned NOT NULL COMMENT 'id',
    `pid` smallint(3) unsigned NOT NULL COMMENT '父id',
    `name` varchar(20) NOT NULL COMMENT '名称',
    `type` tinyint(1) NOT NULL COMMENT '类型',
    `tel_code` char(5) NOT NULL DEFAULT '' COMMENT '区号',
    `district` tinyint(1) unsigned NOT NULL DEFAULT '0' COMMENT '大区',
    PRIMARY KEY (`id`),
    KEY `pid` (`pid`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='区域表';

   
5、[返回数据示例]

 [
    {"id":83,"name":"\u957f\u6625"},{"id":84,"name":"\u5409\u6797"},
    {"id":85,"name":"\u56db\u5e73"},{"id":86,"name":"\u8fbd\u6e90"},
    {"id":87,"name":"\u901a\u5316"},{"id":88,"name":"\u767d\u5c71"},
    {"id":89,"name":"\u677e\u539f"},{"id":90,"name":"\u767d\u57ce"},
    {"id":91,"name":"\u5ef6\u8fb9"}
]