时间:2021-07-01 10:21:17 帮助过:7人阅读
本文实例为大家分享了ajax三级联动展示的具体代码,供大家参考,具体内容如下
1. test.php
<script src="../jquery-1.11.2.min.js"></script> <script src="sanji.js"></script> <title>无标题文档</title> </head> <body> <h1>三级联动</h1> <p id="sanji"></p> </body> </html>
2. sanji.js
3. chuli.php
<?php //给一个父级代号,返回该父级代号下所有的子地区 require "DBDA.class.php"; $db=new DBDA(); $pcode=$_POST["pcode"]; $sql="select areacode,areaname from chinastates where parentareacode='{$pcode}'"; echo $db->StrQuery($sql);
引用的封装类里面返回字符串的方法
<?php class DBDA { public $host = "localhost"; public $uid = "root"; public $pwd = "123"; public $dbname = "test_123"; //执行SQL语句返回相应的结果 //$sql 要执行的SQL语句 //$type 代表SQL语句的类型,0代表增删改,1代表查询 function query($sql,$type=0) { $db = new MySQLi($this->host,$this->uid,$this->pwd,$this->dbname); $result = $db->query($sql); if($type) { //如果是查询,显示数据 return $result->fetch_all(); } else { //如果是增删改,返回true或者false return $result; } } //返回字符串的方法 public function strquery($sql,$type=1) { $db = new MySQLi($this->host,$this->uid,$this->pwd,$this->dbname); $result = $db->query($sql); $arr = $result->fetch_all(); $str=""; foreach($arr as $v) { $str = $str.implode("^",$v)."|"; } $str = substr($str,0,strlen($str)-1); return $str; } //返回JSON function JSONQuery($sql,$type=1) { $db = new MySQLi($this->host,$this->uid,$this->pwd,$this->dbname); $r = $db->query($sql); if($type==1) { return json_encode($r->fetch_all(MYSQLI_ASSOC)); } else { return $r; } } }
以上就是ajax三级联动实现代码_AJAX相关的详细内容,更多请关注Gxl网其它相关文章!