php+js实现省市[select下拉列表]二级关联菜单效果

php+js实现省市[select下拉列表]二级关联菜单效果

$link = mysql_connect('localhost','root','root') or die( mysql_error());
  mysql_select_db('cshouse',$link) or die('db error');
  mysql_query("set Names'gbk'");
  /*$sql = "Select * from zgy_classplace where upid=0 order by id asc";
  $result = mysql_query( $sql );
  $i =1;
  $count = mysql_num_rows( $result );
  $b=',';
  while( $rs = mysql_fetch_array( $result  ) )
  {
   if( $i==$count ){ $b =''; }
   echo " new Array("$rs[id]","$rs[cntitle]")$b nt";
   $i++;
  }
  echo ");";
  */
  
  ?>

 
  ---请选择省份---
      $sql_pr = "Select * from zgy_classplace where upid=0";
  $result_pr = mysql_query( $sql_pr );
  while( $rs_pr = mysql_fetch_array( $result_pr ) )
  {
   echo "$rs_pr[cntitle] nt";
  }
  ?>  
 
 
  ---请选择城市---
   
 
 
 
 

if($_POST)
{
 print_r($_POST);
}

?>