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php多级联动

发布时间: 2022-04-25 00:20:12

A. php页面,下拉框二级联动,如何从数据库读取数据填入

上面说的没错。具体流程如下:一级下拉框选择其中一个值时,触发事件,通过ajax讲选择的值进行sql查询,将返回的结果通过js写入到第二级下拉框中

B. PHP 三级联动菜单

把sql语句发上一份,帮忙的人好测试

C. 如何用PHP实现select二级联动,根据第一个下拉框选择的内容来选择第二个下拉框的内容

给第一个select加js事件,点击它的时候动态加载第二个select的内容,比如写个ajax获取第一个select的value(这个value是哪个quanx_id),然后去后台请求,后无论是用缓存还是说直接从数据库中查,得到这个value对应的field,再返回数据到前台进行处理。也可以在页面加载的时候就直接吧每个quanx_id的对应关系全部查找并在模板中的js用相应变量存储后,再采用上面的思路去动态加载就是了。反正最终都是当select1的value发生变化,动态加载select2的value.

D. PHP如何循环多个二级联动

javaSCRIPT就可以写了 你把JAVASCRIPT追加到PHP代码里面就OK另外
具体 代码
<head>
<script language="javascript" type="text/javascript">
var 后盾网=Array("后盾IT教育","后盾网php培训","朝阳","孙河");
var 后盾网=Array("php培训","IT教育");
var 其余地方=Array("国外","未知地址");
function change()
{
shengList=document.getElementById("sheng");
nIndex=shengList.selectedIndex;
cityList=document.getElementById("city");
switch(nIndex)
{
case 1:
doChange(cityList,北京);
break;
case 2:
doChange(cityList,朝阳);
break;
case 3:
doChange(cityList,其余地方);
break;
default:
cityList.options.length=1;
cityList.options[0].text="--请选择--";
break;
}
}
function doChange(myList,MyItem)
{
var iLength=MyItem.length;
myList.options.length=iLength;
for(var i=0;i<iLength;i++)
{
myList.options[i].text=MyItem[i];
}
}
</script>
</head>

<body>
<select name="sheng" onchange="change()">
<option value="chooseSheng">请选择</option>
<option value="北京">朝阳</option>
<option value="后盾网">php培训</option>
<option value="其他地方">其他地方</option>
</select>
<select name="city"><option value="chooseCity" selected="selected">请选择</option></select></td>

E. 如何实现PHPmvc框架里的二级联动

js代码
var currentShowCity=0;
$(document).ready(function(){
$("#province").change(function(){
$("#province option").each(function(i,o){
if($(this).attr("selected"))
{

$(".city").hide();
$(".city").eq(i).show();
currentShowCity=i;
}
});
});
$("#province").change();
});
function getSelectValue(){
alert("1级="+$("#province").val());

$(".city").each(function(i,o){

if(i == currentShowCity){
alert("2级="+$(".city").eq(i).val());
}
});
}

html代码
<select id="province">
<option>----请选择省份----</option>
<option>北京</option>
<option>上海</option>
<option>江苏</option>
</select>
<select class="city">
<option>----请选择城市----</option>
</select>
<select class="city">
<option>东城</option>
<option>西城</option>
<option>崇文</option>
<option>宣武</option>
<option>朝阳</option>
</select>
<select class="city">
<option>黄浦</option>
<option>卢湾</option>
<option>徐汇</option>
<option>长宁</option>
<option>静安</option>
</select>
<select class="city">
<option>南京</option>
<option>镇江</option>
<option>苏州</option>
<option>南通</option>
<option>扬州</option>
</select>

F. PHPCMS 多级联动菜单怎么设置

后台——扩扩展——联动菜单——添加

表单就可以选择这个新加的联动菜单了。

G. php里多级联动下拉菜单如何做

数据库设计:
database:db;
table:sort1,sort2;
sort1-data:idnamevablue
1aa
2bb

sort2-data:idnameparent_id
1aa-a1
2aa-x1
3bb-m2
4bb-j2
在dw中放置2个跳转菜单,
在第一个select中添如下代码:
<option>---请选择---</option>
<?php
$host="localhost";
$db_name="db";
$username="root";
$password="";
$conn=mysql_connect($host,$username,$password)ordie("不能链接到数据库!");
$db=mysql_select_db($db_name,$conn);
$sql="select*fromsort1orderbyidASC";
$result=mysql_db_query($db_name,$sql);
while($row=mysql_fetch_array($result)){
$sort1_id=$row["id"];
$sort1_name=$row["name"];
$sort1_value=$row["value"];
if(!$sort1_value){
$str="<optionvalue='?data1=$sort1_id'";
if($row["id"]==$data1){
$str.="selected";
}
}
else{
$str="<optionvalue='$sort1_value'";
}
$str.=">$sort1_name</option>";
echo$str;
}
?>

H. php三级联动,能不能这样写呢我只能做到2级联动,三级的jQ不会学

二级联动和三级联动基本上是一样的!就是多了一个关系,其他的和原来的二级联动一样的

I. php 三级联动

<html>
<head>
<title>JS省市县三级联动</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style>
body,select
{
font-size:9pt;
font-family:Verdana;
}
a
{
color:red;
text-decoration:none;
}
a:hover{
text-decoration:underline;
}
</style>
<SCRIPT LANGUAGE="JavaScript">
<!--
function Dsy()
{
this.Items = {};
}
Dsy.prototype.add = function(id,iArray)
{
this.Items[id] = iArray;
}
Dsy.prototype.Exists = function(id)
{
if(typeof(this.Items[id]) == "undefined") return false;
return true;
}
function change(v){
var str="0";
for(i=0;i<v;i++){ str+=("_"+(document.getElementById(s[i]).selectedIndex-1));};
var ss=document.getElementById(s[v]);
with(ss){
length = 0;
options[0]=new Option(opt0[v],opt0[v]);
if(v && document.getElementById(s[v-1]).selectedIndex>0 || !v)
{
if(dsy.Exists(str)){
ar = dsy.Items[str];
for(i=0;i<ar.length;i++)options[length]=new Option(ar[i],ar[i]);
if(v)options[1].selected = true;
}
}
if(++v<s.length){change(v);}
}
}
var dsy = new Dsy();
dsy.add("0",["北京","安徽","福建","甘肃","广东","广西","贵州","海南","河北","河南","黑龙江","湖北","湖南","吉林","江苏","江西","辽宁","内蒙古","宁夏","青海","山东","山西","陕西","上海","四川","天津","西藏","新疆","云南","浙江","重庆"]);
dsy.add("0_0",["北京"]);
dsy.add("0_0_0",["北京市","东城","西城","崇文","宣武","朝阳","丰台","石景山","海淀","门头沟","房山","通州","顺义","昌平","大兴","平谷","怀柔","密云","延庆"]);
dsy.add("0_1",["安庆","蚌端口","巢湖","池州","滁州","阜阳","合肥","淮北","淮南","黄山","六安","马鞍山","宿州","铜陵","芜湖","宣城","亳州"]);
dsy.add("0_1_0",["安庆市","怀宁县","潜山县","宿松县","太湖县","桐城市","望江县","岳西县","枞阳县"]);
dsy.add("0_1_1",["蚌端口市","固镇县","怀远县","五河县"]);
dsy.add("0_1_2",["巢湖市","含山县","和县","庐江县","无为县"]);
dsy.add("0_1_3",["池州市","东至县","青阳县","石台县"]);
dsy.add("0_1_4",["滁州市","定远县","凤阳县","来安县","明光市","全椒县","天长市"]);
dsy.add("0_1_5",["阜南县","阜阳市","界首市","临泉县","太和县","颖上县"]);
dsy.add("0_1_6",["长丰县","肥东县","肥西县"]);
dsy.add("0_1_7",["淮北市","濉溪县"]);
dsy.add("0_1_8",["凤台县","淮南市"]);
dsy.add("0_1_9",["黄山市","祁门县","休宁县","歙县","黟县"]);
dsy.add("0_1_10",["霍邱县","霍山县","金寨县","六安市","寿县","舒城县"]);
dsy.add("0_1_11",["当涂县","马鞍山市"]);
dsy.add("0_1_12",["灵璧县","宿州市","萧县","泗县","砀山县"]);
dsy.add("0_1_13",["铜陵市","铜陵县"]);
dsy.add("0_1_14",["繁昌县","南陵县","芜湖市","芜湖县"]);
dsy.add("0_1_15",["广德县","绩溪县","郎溪县","宁国市","宣城市","泾县","旌德县"]);
dsy.add("0_1_16",["利辛县","蒙城县","涡阳县","亳州市"]);
dsy.add("0_2",["福州","龙岩","南平","宁德","莆田","泉州","三明","厦门","漳州"]);
dsy.add("0_2_0",["长乐市","福清市","福州市","连江县","罗源县","闽侯县","闽清县","平潭县","永泰县"]);
dsy.add("0_2_1",["长汀县","连城县","龙岩市","上杭县","武平县","永定县","漳平市"]);
dsy.add("0_2_2",["光泽县","建阳市","建瓯市","南平市","浦城县","邵武市","顺昌县","松溪县","武夷山市","政和县"]);
dsy.add("0_2_3",["福安市","福鼎市","古田县","宁德市","屏南县","寿宁县","霞浦县","周宁县","柘荣县"]);
dsy.add("0_2_4",["莆田市","仙游县"]);
dsy.add("0_2_5",["安溪县","德化县","惠安县","金门县","晋江市","南安市","泉州市","石狮市","永春县"]);
dsy.add("0_2_6",["大田县","建宁县","将乐县","明溪县","宁化县","清流县","三明市","沙县","泰宁县","永安市","尤溪县"]);
dsy.add("0_2_7",["厦门市"]);
dsy.add("0_2_8",["长泰县","东山县","华安县","龙海市","南靖县","平和县","云霄县","漳浦县","漳州市","诏安县"]);
dsy.add("0_3",["白银","定西","甘南藏族自治州","嘉峪关","金昌","酒泉","兰州","临夏回族自治州","陇南","平凉","庆阳","天水","武威","张掖"]);
dsy.add("0_3_0",["白银市","会宁县","景泰县","靖远县"]);
dsy.add("0_3_1",["定西县","临洮县","陇西县","通渭县","渭源县","漳县","岷县"]);
dsy.add("0_3_2",["迭部县","合作市","临潭县","碌曲县","玛曲县","夏河县","舟曲县","卓尼县"]);
dsy.add("0_3_3",["嘉峪关市"]);
dsy.add("0_3_4",["金昌市","永昌县"]);
dsy.add("0_3_5",["阿克塞哈萨克族自治县","安西县","敦煌市","金塔县","酒泉市","肃北蒙古族自治县","玉门市"]);
dsy.add("0_3_6",["皋兰县","兰州市","永登县","榆中县"]);
dsy.add("0_3_7",["东乡族自治县","广河县","和政县","积石山保安族东乡族撒拉族自治县","康乐县","临夏市","临夏县","永靖县"]);
dsy.add("0_3_8",["成县","徽县","康县","礼县","两当县","文县","武都县","西和县","宕昌县"]);
dsy.add("0_3_9",["崇信县","华亭县","静宁县","灵台县","平凉市","庄浪县","泾川县"]);
dsy.add("0_3_10",["合水县","华池县","环县","宁县","庆城县","庆阳市","镇原县","正宁县"]);
dsy.add("0_3_11",["甘谷县","秦安县","清水县","天水市","武山县","张家川回族自治县"]);
dsy.add("0_3_12",["古浪县","民勤县","天祝藏族自治县","武威市"]);
dsy.add("0_3_13",["高台县","临泽县","民乐县","山丹县","肃南裕固族自治县","张掖市"]);
dsy.add("0_4",["潮州","东莞","佛山","广州","河源","惠州","江门","揭阳","茂名","梅州","清远","汕头","汕尾","韶关","深圳","阳江","云浮","湛江","肇庆","中山","珠海"]);
dsy.add("0_4_0",["潮安县","潮州市","饶平县"]);
dsy.add("0_4_1",["东莞市"]);
dsy.add("0_4_2",["佛山市"]);
dsy.add("0_4_3",["从化市","广州市","增城市"]);
dsy.add("0_4_4",["东源县","和平县","河源市","连平县","龙川县","紫金县"]);
dsy.add("0_4_5",["博罗县","惠东县","惠阳市","惠州市","龙门县"]);
dsy.add("0_4_6",["恩平市","鹤山市","江门市","开平市","台山市"]);
dsy.add("0_4_7",["惠来县","揭东县","揭西县","揭阳市","普宁市"]);
dsy.add("0_4_8",["电白县","高州市","化州市","茂名市","信宜市"]);
dsy.add("0_4_9",["大埔县","丰顺县","蕉岭县","梅县","梅州市","平远县","五华县","兴宁市"]);
dsy.add("0_4_10",["佛冈县","连南瑶族自治县","连山壮族瑶族自治县","连州市","清新县","清远市","阳山县","英德市"]);
dsy.add("0_4_11",["潮阳市","澄海市","南澳县","汕头市"]);
dsy.add("0_4_12",["海丰县","陆丰市","陆河县","汕尾市"]);
dsy.add("0_4_13",["乐昌市","南雄市","曲江县","仁化县","乳源瑶族自治县","韶关市","始兴县","翁源县","新丰县"]);
dsy.add("0_4_14",["深圳市"]);
dsy.add("0_4_15",["阳春市","阳东县","阳江市","阳西县"]);
dsy.add("0_4_16",["罗定市","新兴县","郁南县","云安县","云浮市"]);
dsy.add("0_4_17",["雷州市","廉江市","遂溪县","吴川市","徐闻县","湛江市"]);
dsy.add("0_4_18",["德庆县","封开县","高要市","广宁县","怀集县","四会市","肇庆市"]);
dsy.add("0_4_19",["中山市"]);
dsy.add("0_4_20",["珠海市"]);
dsy.add("0_5",["百色","北海","崇左","防城港","桂林","贵港","河池","贺州","来宾","柳州","南宁","钦州","梧州","玉林"]);
dsy.add("0_5_0",["百色市","德保县","靖西县","乐业县","凌云县","隆林各族自治县","那坡县","平果县","田东县","田林县","田阳县","西林县"]);
dsy.add("0_5_1",["北海市","合浦县"]);
dsy.add("0_5_2",["崇左市","大新县","扶绥县","龙州县","宁明县","凭祥市","天等县"]);
dsy.add("0_5_3",["东兴市","防城港市","上思县"]);
dsy.add("0_5_4",["恭城瑶族自治县","灌阳县","桂林市","荔浦县","临桂县","灵川县","龙胜各族自治县","平乐县","全州县","兴安县","阳朔县","永福县","资源县"]);
dsy.add("0_5_5",["桂平市","贵港市","平南县"]);
dsy.add("0_5_6",["巴马瑶族自治县","大化瑶族自治县","东兰县","都安瑶族自治县","凤山县","河池市","环江毛南族自治县","罗城仡佬族自治县","南丹县","天峨县","宜州市"]);
dsy.add("0_5_7",["富川瑶族自治县","贺州市","昭平县","钟山县"]);
dsy.add("0_5_8",["合山市","金秀瑶族自治县","来宾市","武宣县","象州县","忻城县"]);
dsy.add("0_5_9",["柳城县","柳江县","柳州市","鹿寨县","融安县","融水苗族自治县","三江侗族自治县"]);
dsy.add("0_5_10",["宾阳县","横县","隆安县","马山县","南宁市","上林县","武鸣县","邕宁县"]);
dsy.add("0_5_11",["灵山县","浦北县","钦州市"]);
dsy.add("0_5_12",["苍梧县","蒙山县","藤县","梧州市","岑溪市"]);
dsy.add("0_5_13",["北流市","博白县","陆川县","容县","兴业县","玉林市"]);
dsy.add("0_6",["安顺","毕节","贵阳","六盘水","黔东南苗族侗族自治州","黔南布依族苗族自治州","黔西南布依族苗族自治州","铜仁","遵义"]);
dsy.add("0_6_0",["安顺市","关岭布依族苗族自治县","平坝县","普定县","镇宁布依族苗族自治县","紫云苗族布依族自治县"]);
dsy.add("0_6_1",["毕节市","大方县","赫章县","金沙县","纳雍县","黔西县","威宁彝族回族苗族自治县","织金县"]);
dsy.add("0_6_2",["贵阳市","开阳县","清镇市","息烽县","修文县"]);
dsy.add("0_6_3",["六盘水市","六枝特区","盘县","水城县"]);
dsy.add("0_6_4",["从江县","丹寨县","黄平县","剑河县","锦屏县","凯里市","雷山县","黎平县","麻江县","三穗县","施秉县","台江县","天柱县","镇远县","岑巩县","榕江县"]);
dsy.add("0_6_5",["长顺县","都匀市","独山县","福泉市","贵定县","惠水县","荔波县","龙里县","罗甸县","平塘县","三都水族自治县","瓮安县"]);
dsy.add("0_6_6",["安龙县","册亨县","普安县","晴隆县","望谟县","兴仁县","兴义市","贞丰县"]);
dsy.add("0_6_7",["德江县","江口县","石阡县","思南县","松桃苗族自治县","铜仁市","万山特区","沿河土家族自治县","印江土家族苗族自治县","玉屏侗族自治县"]);
dsy.add("0_6_8",["赤水市","道真仡佬族苗族自治县","凤冈县","仁怀市","绥阳县","桐梓县","务川仡佬族苗族自治县","习水县","余庆县","正安县","遵义市","遵义县","湄潭县"]);
dsy.add("0_7",["白沙黎族自治县","保亭黎族苗族自治县","昌江黎族自治县","澄迈县","定安县","东方","海口","乐东黎族自治县","临高县","陵水黎族自治县","琼海","琼中黎族苗族自治县","三亚","屯昌县","万宁","文昌","五指山","儋州"]);
dsy.add("0_7_0",["白沙黎族自治县"]);
dsy.add("0_7_1",["保亭黎族苗族自治县"]);
dsy.add("0_7_2",["昌江黎族自治县"]);
dsy.add("0_7_3",["澄迈县"]);
dsy.add("0_7_4",["定安县"]);
dsy.add("0_7_5",["东方市"]);
dsy.add("0_7_6",["海口市"]);
dsy.add("0_7_7",["乐东黎族自治县"]);
dsy.add("0_7_8",["临高县"]);
dsy.add("0_7_9",["陵水黎族自治县"]);
dsy.add("0_7_10",["琼海市"]);
dsy.add("0_7_11",["琼中黎族苗族自治县"]);
dsy.add("0_7_12",["三亚市"]);
dsy.add("0_7_13",["屯昌县"]);
dsy.add("0_7_14",["万宁市"]);
dsy.add("0_7_15",["文昌市"]);
dsy.add("0_7_16",["五指山市"]);
dsy.add("0_7_17",["儋州市"]);
dsy.add("0_8",["保定","沧州","承德","邯郸","衡水","廊坊","秦皇岛","石家庄","唐山","邢台","张家口"]);
dsy.add("0_8_0",["安国市","安新县","保定市","博野县","定兴县","定州市","阜平县","高碑店市","高阳县","满城县","清苑县","曲阳县","容城县","顺平县","唐县","望都县","雄县","徐水县","易县","涞水县","涞源县","涿州市","蠡县"]);
dsy.add("0_8_1",["泊头市","沧县","沧州市","东光县","海兴县","河间市","黄骅市","孟村回族自治县","南皮县","青县","任丘市","肃宁县","吴桥县","献县","盐山县"]);
dsy.add("0_8_2",["承德市","承德县","丰宁满族自治县","宽城满族自治县","隆化县","滦平县","平泉县","围场满族蒙古族自治县","兴隆县"]);
dsy.add("0_8_3",["成安县","磁县","大名县","肥乡县","馆陶县","广平县","邯郸市","邯郸县","鸡泽县","临漳县","邱县","曲周县","涉县","魏县","武安市","永年县"]);
dsy.add("0_8_4",["安平县","阜城县","故城县","衡水市","冀州市","景县","饶阳县","深州市","武强县","武邑县","枣强县"]);
dsy.add("0_8_5",["霸州市","大厂回族自治县","大城县","固安县","廊坊市","三河市","文安县","香河县","永清县"]);
dsy.add("0_8_6",["昌黎县","抚宁县","卢龙县","秦皇岛市","青龙满族自治县"]);
dsy.add("0_8_7",["高邑县","晋州市","井陉县","灵寿县","鹿泉市","平山县","深泽县","石家庄市","无极县","辛集市","新乐市","行唐县","元氏县","赞皇县","赵县","正定县","藁城市","栾城县"]);
dsy.add("0_8_8",["乐亭县","滦南县","滦县","迁安市","迁西县","唐海县","唐山市","玉田县","遵化市"]);
dsy.add("0_8_9",["柏乡县","广宗县","巨鹿县","临城县","临西县","隆尧县","南宫市","南和县","内丘县","宁晋县","平乡县","清河县","任县","沙河市","威县","新河县","邢台市","邢台县"]);
dsy.add("0_8_10",["赤城县","崇礼县","沽源县","怀安县","怀来县","康保县","尚义县","万全县","蔚县","宣化县","阳原县","张北县","张家口市","涿鹿县"]);
dsy.add("0_9",["安阳","鹤壁","济源","焦作","开封","洛阳","南阳","平顶山","三门峡","商丘","新乡","信阳","许昌","郑州","周口","驻马店","漯河","濮阳"]);
dsy.add("0_9_0",["安阳市","安阳县","滑县","林州市","内黄县","汤阴县"]);
dsy.add("0_9_1",["","鹤壁市","浚县","淇县"]);
dsy.add("0_9_2",["济源市"]);
dsy.add("0_9_3",["博爱县","焦作市","孟州市","沁阳市","温县","武陟县","修武县"]);
dsy.add("0_9_4",["开封市","开封县","兰考县","通许县","尉氏县","杞县"]);
dsy.add("0_9_5",["洛宁县","洛阳市","孟津县","汝阳县","新安县","伊川县","宜阳县","偃师市","嵩县","栾川县"]);
dsy.add("0_9_6",["邓州市","方城县","南阳市","南召县","内乡县","社旗县","唐河县","桐柏县","西峡县","新野县","镇平县","淅川县"]);
dsy.add("0_9_7",["宝丰县","鲁山县","平顶山市","汝州市","舞钢市","叶县","郏县"]);
dsy.add("0_9_8",["灵宝市","卢氏县","三门峡市","陕县","义马市","渑池县"]);
dsy.add("0_9_9",["民权县","宁陵县","商丘市","夏邑县","永城市","虞城县","柘城县","睢县"]);
dsy.add("0_9_10",["长垣县","封丘县","辉县市","获嘉县","卫辉市","新乡市","新乡县","延津县","原阳县"]);
dsy.add("0_9_11",["固始县","光山县","淮滨县","罗山县","商城县","息县","新县","信阳市","潢川县"]);
dsy.add("0_9_12",["长葛市","襄城县","许昌市","许昌县","禹州市","鄢陵县"]);
dsy.add("0_9_13",["登封市","巩义市","新密市","新郑市","郑州市","中牟县","荥阳市"]);
dsy.add("0_9_14",["郸城县","扶沟县","淮阳县","鹿邑县","商水县","沈丘县","太康县","西华县","项城市","周口市"]);
dsy.add("0_9_15",["泌阳县","平舆县","确山县","汝南县","上蔡县","遂平县","西平县","新蔡县","正阳县","驻马店市"]);
dsy.add("0_9_16",["临颍县","舞阳县","郾城县","漯河市"]);
dsy.add("0_9_17",["范县","南乐县","清丰县","台前县","濮阳市","濮阳县"]);
dsy.add("0_10",["大庆","大兴安岭","哈尔滨","鹤岗","黑河","鸡西","佳木斯","牡丹江","七台河","齐齐哈尔","双鸭山","绥化","伊春"]);
dsy.add("0_10_0",["大庆市","杜尔伯特蒙古族自治县","林甸县","肇源县","肇州县"]);
dsy.add("0_10_1",["呼玛县","漠河县","塔河县"]);
dsy.add("0_10_2",["阿城市","巴彦县","宾县","方正县","哈尔滨市","呼兰县","木兰县","尚志市","双城市","通河县","五常市","延寿县","依兰县"]);
dsy.add("0_10_3",["鹤岗市","萝北县","绥滨县"]);
dsy.add("0_10_4",["北安市","黑河市","嫩江县","孙吴县","五大连池市","逊克县"]);
dsy.add("0_10_5",["虎林市","鸡东县","鸡西市","密山市"]);
dsy.add("0_10_6",["抚远县","富锦市","佳木斯市","汤原县","同江市","桦川县","桦南县"]);
dsy.add("0_10_7",["东宁县","海林市","林口县","牡丹江市","穆棱市","宁安市","绥芬河市"]);
dsy.add("0_10_8",["勃利县","七台河市"]);
dsy.add("0_10_9",["拜泉县","富裕县","甘南县","克东县","克山县","龙江县","齐齐哈尔市","泰来县","依安县","讷河市"]);
dsy.add("0_10_10",["宝清县","集贤县","饶河县","双鸭山市","友谊县"]);
dsy.add("0_10_11",["安达市","海伦市","兰西县","明水县","青冈县","庆安县","绥化市","绥棱县","望奎县","肇东市"]);
dsy.add("0_10_12",["嘉荫县","铁力市","伊春市"]);
dsy.add("0_11",["鄂州","恩施土家族苗族自治州","黄冈","黄石","荆门","荆州","潜江","神农架林区","十堰","随州","天门","武汉","仙桃","咸宁","襄樊","孝感","宜昌"]);
dsy.add("0_11_0",["鄂州市"]);
dsy.add("0_11_1",["巴东县","恩施市","鹤峰县","建始县","来凤县","利川市","咸丰县","宣恩县"]);
dsy.add("0_11_2",["红安县","黄冈市","黄梅县","罗田县","麻城市","团风县","武穴市","英山县","蕲春县","浠水县"]);
dsy.add("0_11_3",["大冶市","黄石市","阳新县"]);
dsy.add("0_11_4",["荆门市","京山县","沙洋县","钟祥市"]);
dsy.add("0_11_5",["公安县","洪湖市","监利县","江陵县","荆州市","石首市","松滋市"]);
dsy.add("0_11_6",["潜江市"]);
dsy.add("0_11_7",["神农架林区"]);
dsy.add("0_11_8",["丹江口市","房县","十堰市","郧西县","郧县","竹山县","竹溪县"]);
dsy.add("0_11_9",["广水市","随州市"]);
dsy.add("0_11_10",["天门市"]);
dsy.add("0_11_11",["武汉市"]);
dsy.add("0_11_12",["仙桃市"]);
dsy.add("0_11_13",["赤壁市","崇阳县","嘉鱼县","通城县","通山县","咸宁市"]);
dsy.add("0_11_14",["保康县","谷城县","老河口市","南漳县","襄樊市","宜城市","枣阳市"]);
dsy.add("0_11_15",["安陆市","大悟县","汉川市","孝昌县","孝感市","应城市","云梦县"]);
dsy.add("0_11_16",["长阳土家族自治县","当阳市","五峰土家族自治县","兴山县","宜昌市","宜都市","远安县","枝江市","秭归县"]);
dsy.add("0_30",["重庆"]);
dsy.add("0_30_0",["城口县","大足县","垫江县","丰都县","奉节县","合川市","江津市","开县","梁平县","南川市","彭水苗族土家族自治县","荣昌县","石柱土家族自治县","铜梁县","巫山县","巫溪县","武隆县","秀山土家族苗族自治县","永川市","酉阳土家族苗族自治县","云阳县","忠县","重庆市","潼南县","璧山县","綦江县"]);
//-->
</SCRIPT>
<SCRIPT LANGUAGE = JavaScript>
<!--

var s=["s1","s2","s3"];
var opt0 = ["省份","地级市","市、县级市、县"];
function setup()
{
for(i=0;i<s.length-1;i++)
document.getElementById(s[i]).onchange=new Function("change("+(i+1)+")");
change(0);
}
//-->
</SCRIPT>
</head>
<body bgcolor="#E0E0E0" onload="setup()">
多级关联菜单:
<form name="frm">
<select id="s1"><option>省份</option></select>
<select id="s2"><option>地级市</option></select>
<select id="s3"><option>市、县级市、县</option></select>
</form>
</body>
</html>

J. php实现省份和城市的联动,联动起来了,省份下拉框里可以选择省份,城市下拉框里却没有城市的数据

注意一下,你的异步传输的页面编码问题,如果返回的信息为乱码,也会导致没反映的现象。

建议中文内容改成英文内容进行调试。

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