各位高手:
小弟有一问题,请各位高手帮忙,我想写个三级联动,三个下拉列表的值都是从数据库里获取的.
用到SMARTY,在PHP页用mysql_fetch_array(),用$tpl->assign("main_list",$array);
将值传到模板页里.在模板页里用 <select name="s1" id="s1">
<option value="0">请选择</option>
{/foreach from=$main_list item=nav_id/}
<option value="{/$nav_id.nav_id/}">{/$nav_id.nav_name/}</option>
{//foreach/}
</select>
将数据库的值输入到下拉列表中,这种情况怎么样才能做个三级联动呀.各位高手帮帮忙.
还有一个问题就是,我怎么样用一条SQL语句,将数据同时插入两个表中.
小弟有一问题,请各位高手帮忙,我想写个三级联动,三个下拉列表的值都是从数据库里获取的.
用到SMARTY,在PHP页用mysql_fetch_array(),用$tpl->assign("main_list",$array);
将值传到模板页里.在模板页里用 <select name="s1" id="s1">
<option value="0">请选择</option>
{/foreach from=$main_list item=nav_id/}
<option value="{/$nav_id.nav_id/}">{/$nav_id.nav_name/}</option>
{//foreach/}
</select>
将数据库的值输入到下拉列表中,这种情况怎么样才能做个三级联动呀.各位高手帮帮忙.
还有一个问题就是,我怎么样用一条SQL语句,将数据同时插入两个表中.
include "lib/session.php";
@ $db = new mysqli("localhost","root","admin","cjcx");
$query2 = "select * from major ";
$result2 = $db ->query($query2);
$num_major = $result2->num_rows;
if($_GET[pid]!=""){ $_SESSION["pid"]=$_GET[pid]; }
if($_GET[cid]!=""){ $_SESSION["cid"]=$_GET[cid]; }
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<LINK href="css/admin.css" type="text/css" rel="stylesheet">
</HEAD>
<script language="javascript">
function selectdepartment(x){
if(x!="请选择"){
window.location.href='sgrade.php?pid='+x;
}
}
function selectmajor(x){
if(x!="请选择") {
window.location.href='sgrade.php?cid='+x+"&pid="+form1.select2.value;
}
}
</script>
<BODY>
<TABLE cellSpacing=0 cellPadding=0 width="100%" align=center border=0>
<form name="form1" method="post" action="editsgrade.php">
<TR height=28>
<TD background=images/title_bg1.jpg>当前位置: </TD></TR>
<TR>
<TD bgColor=#b1ceef height=1></TD></TR>
<TR height=20>
<TD background=images/shadow_bg.jpg></TD></TR></TABLE>
<table align="center">
<tr>
<td>请选择班级：</td><td><select name="select2" onChange="selectdepartment(this.value);" >
<option value="请选择" selected="selected"> 请选择</option>
<?php for($i = 0; $i < $num_major; $i++)
{
$row2 = $result2->fetch_assoc();
?>
<option value="<?php echo $row2[name]; ?>"
<?php
if($_SESSION["pid"]!="") {
if($_SESSION["pid"]==$row2[name]){
echo "selected=\"selected\"";
}
}
?> > <?php echo $row2[name];?></option>
}
<?php
}
?>
</select></td>
<td>请选择课程：</td><td><select name="select5" onChange="selectmajor(this.value);" >
<option value="请选择" selected="selected"> 请选择</option>
<?php if($_GET[pid]!="") { ?>
<?php
$query5="select * from teachersourse where major='".$_GET[pid]."'";
$result5 = $db ->query($query5);
$num_teachercourse = $result5->num_rows;
?>
<?php for($i = 0; $i < $num_teachercourse; $i++)
{
$row5 = $result5->fetch_assoc();
?>
<option value="<?php echo $row5[course]; ?>"
<?php
if($_SESSION["cid"]!="") {
if($_SESSION["cid"]==$row5[course]){
echo "selected=\"selected\"";
}
}
?> > <?php echo $row5[course];?></option>
}
<?php
}}
?>
</select></td>
<td><input type="submit" value="查找" /></td>
</tr>
</table>
</body>
</html>这个是我做的二级联动