落伍首发 php+mysql 采用ajax技术的 省 市 地 3级联动无刷新菜单 源码
绝对原创
测试地址: http://www.mlmm.cn/mypage/?name=ceshi
测试页代码:
复制代码 代码如下:
<script></script>
regionss 函数代码:
QUOTE:
复制代码 代码如下:
//省市地3级联动下拉菜单函数 regionss 省.市.地
function regionss($country="中华人民共和国")
{
global $db; $i = 1;
$text="";
$text.=" \n";
$text.="\n";
return $text;
}
regions.js 的代码:
复制代码 代码如下:
//var ab = new Array();
var xmlHttp;
var xmlHttpa;
function createXMLHttpRequest() {
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
}
}
function createXMLHttpRequesta() {
if (window.ActiveXObject) {
xmlHttpa = new ActiveXObject("Microsoft.XMLHTTP");
}
else if (window.XMLHttpRequest) {
xmlHttpa = new XMLHttpRequest();
}
}
function startRequest() {
createXMLHttpRequest();
createXMLHttpRequesta();
xmlHttp.onreadystatechange = handleStateChange;
xmlHttpa.onreadystatechange = handleStateChangearea;
document.getElementById('select2').options.length = 0;
document.getElementById('select3').options.length = 0;
var url = document.form1.select1.value;
var qurl = "/regions.php?province="+url+"&time="+new Date().getTime();
xmlHttp.open("GET", qurl, true);
xmlHttp.send(null);
//setTimeout("startRequest()",2000);
}
function handleStateChange() {
if(xmlHttp.readyState == 4) {
if(xmlHttp.status == 200) {
var obj = document.getElementById('select2'); //将服务器返回的字符串写到页面中ID为select2的区域
obja = document.getElementById('select3'); //将服务器返回的字符串写到页面中ID为select3的区域
eval(xmlHttp.responseText);
}
}
}
function handleStateChangearea() {
eval(xmlHttpa.responseText);
}
//var ab = new Array();
function startRequesta() {
createXMLHttpRequesta();
xmlHttpa.onreadystatechange = handleStateChangea;
document.getElementById('select3').options.length = 0;
var url = document.form1.select2.value;
var qurl = "/regions.php?city="+url+"&time="+new Date().getTime();
xmlHttpa.open("GET", qurl, true);
xmlHttpa.send(null);
//setTimeout("startRequest()",2000);
}
function handleStateChangea() {
if(xmlHttpa.readyState == 4) {
if(xmlHttpa.status == 200) {
var obja = document.getElementById('select3');
eval(xmlHttpa.responseText);
//将服务器返回的字符串写到页面中ID为select3的区域
}
}
}
数据岛 regions.php 页面代码
复制代码 代码如下:
require "common.php";
$city = $city ? $city : "";
$area = $area ? $area : "";
if($province && $city==''){
global $db; $i = 1;
$result = $db->query("SELECT DISTINCT city FROM ".TABLE_CITY." WHERE province='$province' ORDER BY cityid");
while($r = $db->fetch_array($result))
{
$r[city]=iconv('gb2312','UTF-8',$r[city]);
echo "obj.options[obj.options.length] = new Option('".$r[city]."','".$r[city]."');\n";
$i++;
}
$resultarea = $db->query("SELECT DISTINCT city FROM ".TABLE_CITY." WHERE province='$province' ORDER BY cityid");
$r = $db->fetch_array($resultarea);
$city = $r[city];
$resulta = $db->query("SELECT DISTINCT area FROM ".TABLE_CITY." WHERE city='$city' ORDER BY cityid");
while($ra = $db->fetch_array($resulta))
{
$ra[area]=iconv('gb2312','UTF-8',$ra[area]);
echo "obja.options[obja.options.length] = new Option('".$ra[area]."','".$ra[area]."');\n";
$i++;
}
}
if($city && $province==''){
global $db; $i = 1;
$result = $db->query("SELECT DISTINCT area FROM ".TABLE_CITY." WHERE city='$city' ORDER BY cityid");
while($r = $db->fetch_array($result))
{
$r[area]=iconv('gb2312','UTF-8',$r[area]);
echo "obja.options[obja.options.length] = new Option('".$r[area]."','".$r[area]."');\n";
$i++;
}
}
?>
地址信息数据库:
采用的是phpcms3.0里自带的数据库,我没有进行任何改动
本程序可以在phpcms3.0里直接使用,若在其他地方使用请自己修改

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Is the F5 key not working properly on your Windows 11/10 PC? The F5 key is typically used to refresh the desktop or explorer or reload a web page. However, some of our readers have reported that the F5 key is refreshing their computers and not working properly. How to enable F5 refresh in Windows 11? To refresh your Windows PC, just press the F5 key. On some laptops or desktops, you may need to press the Fn+F5 key combination to complete the refresh operation. Why doesn't F5 refresh work? If pressing the F5 key fails to refresh your computer or you are experiencing issues on Windows 11/10, it may be due to the function keys being locked. Other potential causes include the keyboard or F5 key

What do you think of furmark? 1. Set the "Run Mode" and "Display Mode" in the main interface, and also adjust the "Test Mode" and click the "Start" button. 2. After waiting for a while, you will see the test results, including various parameters of the graphics card. How is furmark qualified? 1. Use a furmark baking machine and check the results for about half an hour. It basically hovers around 85 degrees, with a peak value of 87 degrees and room temperature of 19 degrees. Large chassis, 5 chassis fan ports, two on the front, two on the top, and one on the rear, but only one fan is installed. All accessories are not overclocked. 2. Under normal circumstances, the normal temperature of the graphics card should be between "30-85℃". 3. Even in summer when the ambient temperature is too high, the normal temperature is "50-85℃

This paper explores the problem of accurately detecting objects from different viewing angles (such as perspective and bird's-eye view) in autonomous driving, especially how to effectively transform features from perspective (PV) to bird's-eye view (BEV) space. Transformation is implemented via the Visual Transformation (VT) module. Existing methods are broadly divided into two strategies: 2D to 3D and 3D to 2D conversion. 2D-to-3D methods improve dense 2D features by predicting depth probabilities, but the inherent uncertainty of depth predictions, especially in distant regions, may introduce inaccuracies. While 3D to 2D methods usually use 3D queries to sample 2D features and learn the attention weights of the correspondence between 3D and 2D features through a Transformer, which increases the computational and deployment time.

Journey through the vastness and set foot on the journey to the west! Today, Zhengtu IP officially announced that it will launch a cross-border cooperation with CCTV animation "Journey to the West" to jointly create a cultural feast that combines tradition and innovation! This cooperation not only marks the in-depth cooperation between the two major domestic classic brands, but also demonstrates the unremitting efforts and persistence of the Zhengtu series on the road of promoting Chinese traditional culture. Since its birth, the Zhengtu series has been loved by players for its profound cultural heritage and diversified gameplay. In terms of cultural inheritance, the Zhengtu series has always maintained respect and love for traditional Chinese culture, and skillfully integrated traditional cultural elements into the game, bringing more fun and inspiration to players. The CCTV animation "Journey to the West" is a classic that has accompanied the growth of generations.

Build an autocomplete suggestion engine using PHP and Ajax: Server-side script: handles Ajax requests and returns suggestions (autocomplete.php). Client script: Send Ajax request and display suggestions (autocomplete.js). Practical case: Include script in HTML page and specify search-input element identifier.

The "Inaction Test" of the new fantasy fairy MMORPG "Zhu Xian 2" will be launched on April 23. What kind of new fairy adventure story will happen in Zhu Xian Continent thousands of years after the original work? The Six Realm Immortal World, a full-time immortal academy, a free immortal life, and all kinds of fun in the immortal world are waiting for the immortal friends to explore in person! The "Wuwei Test" pre-download is now open. Fairy friends can go to the official website to download. You cannot log in to the game server before the server is launched. The activation code can be used after the pre-download and installation is completed. "Zhu Xian 2" "Inaction Test" opening hours: April 23 10:00 - May 6 23:59 The new fairy adventure chapter of the orthodox sequel to Zhu Xian "Zhu Xian 2" is based on the "Zhu Xian" novel as a blueprint. Based on the world view of the original work, the game background is set

On the date, "Backwater Cold" officially announced that it will launch a linkage with KFC from April 19th to May 12th. However, the specific content of the linkage has left many people stunned. They repeatedly said, "It's embarrassing to heaven" and "It's important to society." died"! The reason lies in the slogan of this theme event. Friends who have seen the KFC linkage of "Genshin Impact" and "Beng Tie" must have the impression that "encountering another world and enjoying delicious food" has become a reality in "Ni Shui Han" Now: shout out to the clerk, "God is investigating the case, who are you?" The clerk needs to reply, "Fried chicken is a big business, and there is no room for error!" Training guide for employees: Never laugh! Not only that, this collaboration also held a dance competition. If you go to the theme store and perform the "Dance when you hear 'Ji'" dance move, you can also get a small rocking music stand. Embarrassing, so embarrassing! But that's what I want

In September 23, the paper "DeepModelFusion:ASurvey" was published by the National University of Defense Technology, JD.com and Beijing Institute of Technology. Deep model fusion/merging is an emerging technology that combines the parameters or predictions of multiple deep learning models into a single model. It combines the capabilities of different models to compensate for the biases and errors of individual models for better performance. Deep model fusion on large-scale deep learning models (such as LLM and basic models) faces some challenges, including high computational cost, high-dimensional parameter space, interference between different heterogeneous models, etc. This article divides existing deep model fusion methods into four categories: (1) "Pattern connection", which connects solutions in the weight space through a loss-reducing path to obtain a better initial model fusion
