mysql php无刷新三级联动菜单

一款联动菜单，利用了js php mysql实现的无刷新效果，有需要的朋友可以直接下载哦。

代码如下

复制代码

$sql="select * from ptypes where sid = 0 and ssid =0"; $result=mysql教程_query($sql,$conn) or die("查询数据库教程出错1"); while($row=mysql_fetch_object($result)) { $i=0; $rs2=""; $sql2="select * from ptypes where sid='".$row->id."'"; $result2=mysql_query($sql2,$conn) or die("查询数据出错2"); while($row2=mysql_fetch_object($result2)) { if ($i==0){ $t=""; }else{ $t=","; } $rs2.=$t."{txt:'".$row2->title."',val:'".$row2->id."'}n"; $n=0; $rs3=""; $sql3="select * from ptypes where ssid='".$row2->id."'"; $result3=mysql_query($sql3,$conn) or die("查询是数据库出错3"); while($row3=mysql_fetch_object($result3)) { if ($n==0) { $t1=""; }else{ $t1=","; } $rs3.=$t1."{txt:'".$row3->title."',val:'".$row3->id."'}n"; $n=1; } echo("sidArr['".$row2->id."']=[".$rs3."];"); $i=1; } echo("sidArr['".$row->id."']=[".$rs2."];"); } ?> function setCity(province) { removeOptions(document.getElementById('sid')); removeOptions(document.getElementById('ssid')); setSelectOption('sid', "", '-请选择-'); setSelectOption('ssid', "", '-请选择-'); if (!sidArr[province] || sidArr[province]==""){ document.getElementById('sid').disabled=true; document.getElementById('ssid').disabled=true; }else{ document.getElementById('sid').disabled=false; document.getElementById('ssid').disabled=false; setSelectOption('sid', sidArr[province], '-请选择-'); } } function setssid(province) { removeOptions(document.getElementById('ssid')); setSelectOption('ssid', "", '-请选择-'); if (!sidArr[province] || sidArr[province]==""){ document.getElementById('ssid').disabled=true; }else{ document.getElementById('ssid').disabled=false; setSelectOption('ssid', sidArr[province], '-请选择-'); } } -请选择- $sql="select * from ptypes where sid=0 and ssid = 0"; $result=mysql_query($sql,$conn) or die("返回数据记录出错!"); while($row=mysql_fetch_object($result)) { echo ("".$row->title.""); } ?> 一级 -请选择- 二级 -请选择- 三级

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