Question

产品页面的三级分类 添加到产品表里面的时候怎么取值呢？

因为有时候我可能只在一级类里面添加图片，也可能在二级类里面添加图片，也可能在三级类里面添加图片 那么我如何取值呢？用判断吗？
<script language="JavaScript">
<!--
var subcat = new Array();
<?php
$i=0;

$sql="select * from dj_jiayao_type where flid=2";

$query=mysql_query($sql,$link);
while($arr=mysql_fetch_array($query))
{

echo "subcat[".$i++."] = new Array('".$arr["tid"]."','".$arr["type"]."','".$arr["id"]."');\n";
}
?>
var subcat2 = new Array();
<?php
$i=0;
$sql="select * from dj_jiayao_type where flid=3";

$query=mysql_query($sql,$link);
while($arr=mysql_fetch_array($query))
{

echo "subcat2[".$i++."] = new Array('".$arr["tid"]."','".$arr["type"]."','".$arr["id"]."');\n";
}
?>
function changeselect1(locationid)
{
document.myform.s2.length = 0;
document.myform.s2.options[0] = new Option('==请选择==','');
for (i=0; i<subcat.length; i++)
{
if (subcat[i][0] == locationid)
{document.myform.s2.options[document.myform.s2.length] = new Option(subcat[i][1], subcat[i][2]);}
}
}
function changeselect2(locationid)
{
document.myform.s3.length = 0;
document.myform.s3.options[0] = new Option('==请选择==','');
for (i=0; i<subcat2.length; i++)
{
if (subcat2[i][0] == locationid)
{document.myform.s3.options[document.myform.s3.length] = new Option(subcat2[i][1], subcat2[i][2]);}
}
}

//-->
</script>

<select name="s1" onChange="changeselect1(this.value)">
<option>==请选择==</option>
<?php
$sql="select * from dj_jiayao_type where flid=1";

$query=mysql_query($sql,$link);
while($arr=mysql_fetch_array($query))
{
echo "<option value=".$arr["id"].">".$arr["type"]."</option>\n";
}
?>

</select>
<select name="s2" onChange="changeselect2(this.value)">
<option>==请选择==</option>
</select>
<select name="s3" onChange="changeselect3(this.value)">
<option>==请选择==</option>
</select>

这个是添加页
$title = $_POST["title"];
$content = $_POST["content1"];
$s1 = $_POST["s1"];
$s2 = $_POST["s2"];
$s3 = $_POST["s3"];
if($s3<>""){
$tid = $s3;
}
elseif($s2<>"" || $s3=="")
{$tid=$s2;}
elseif($s2==""){
$tid = $s1;
}
echo $tid;
$adddate = gmdate("Y-m-d H:i:s",time()+8*3600); //echo $addtime = date('Y-m-d H:i:s');
if (mysql_query("insert into dj_jiayao(title,pic,content,tid,time,tj)values('$title','$pic','$content','$tid','$adddate',1)"))
{
echo "insert into dj_jiayao(title,pic,content,tid,time,tj)values('$title','$pic','$content','$tid','$adddate',1)";
echo "<script>alert('˼Ϣӳɹ!');location.href='admin_jiayao.php';</script>";
}
else{
echo "<script>alert('ʧ!');history.go(-1)</script>";
}
?>

不知道思路对了没 请指点

Answer 1

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