jQuery+php+mysql,轻松实现ajax无刷新省市二级联动

用jQuery的ajax方法,结合PHP,轻松实现省市级的二级联动:

新建area.php

 1   2 $dbc=mysqli_connect("localhost","xxxx","xxxxxxxxxx","test") or die("can not connect to mysql ".mysqli_error());
 3 mysqli_query($dbc,"set names utf8");
 4 header("Content-Type:text/html;charset=utf-8");
 5 
 6 if($_REQUEST['do']=="search" && $_REQUEST['pid']){
 7  $str="";
 8  $str='';
 9 
10 $r="select areaid,name from `china_areas` where parentid='".$_REQUEST['pid']."' order by vieworder asc;";
11 $q=mysqli_query($dbc,$r);
12  while(list($areaid,$name)=mysqli_fetch_array($q,MYSQLI_NUM)){
13  
14  $str.='$areaid.'">'.$name.'';
15  
16  }
17  
18  $str.='';
19  
20  echo $str;exit;
21  }
22 ?>
23 PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
24 
25 
26 
27 
28 
29 
41 
44 
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47 
 
48 

49 地区:
50 
51 52 $r="select areaid,name from `china_areas` where parentid='0' order by vieworder asc;";
53 $q=mysqli_query($dbc,$r);
54 while(list($areaid,$name)=mysqli_fetch_array($q,MYSQLI_NUM)){
55 ?>
56 $areaid;?>">$name;?>
57 58 }
59 ?>
60    
61 
62 

效果如图:

 下拉选择广东省后:

转载于:https://www.cnblogs.com/ShunYea/archive/2012/12/22/2829442.html