<!doctype html>

<html>

<head>

<meta http-equiv='Content-Type' content='text/html; charset=UTF-8'>

<title>标题</title>

<meta name='Keywords' content=''>

<meta name='Description' content=''>

<style type='text/css'>

div{width: 500px; margin:60px auto;}

</style>

</head>

<body>

<div>

    <a href="javascript:;" data-city='km'>昆明</a>

    <a href="javascript:;" data-city='qj'>曲靖</a>

    <a href="javascript:;" data-city='hh'>红河</a>

</div>

<script src="https://cdn.bootcss.com/jquery/1.8.3/jquery.min.js"></script>

<script type='text/javascript' >

(function(){

    var city = '';

    $('div>a').click(function(){

        city = $(this).data('city');

        var url = "{:U('Jiami/cuncookie')}";

        $.post(url,{city:city},function(data){

            if(data){

                window.location.reload();

            };

        });

    });

})();

</script>

</body>

</html>

<?php

namespace Home\Controller;

use Think\Controller;

class JiamiController extends Controller {

    public function index(){

      $where = array();

      //取cookie

      $cookieData = $_COOKIE['city'];

      $cookieData = encrytion($cookieData,0);

      if($cookieData){

        $where['chengshi'] = $cookieData;

      }

      $obj = D('DiquView')->where($where)->field('title')->select();

      p($obj);

      $this->display();

    }

    public function cuncookie(){

      $value = I('post.city');

      //加密

      $city = encrytion($value,1);

      $res = @setcookie('city',$city,C('COOKIE_LOGIN_TIME'),'/');

      echo $res;

      //解密

      //$city = encrytion($city,0);

      //echo $city;

    }

}