php+mysql 採用ajax技術的 省 市 地 3級聯動無重新整理菜單 源碼_PHP教程

很簡單的

1.先把
加到 header.html 頁
2.把 regionss() 函數 加到 /include/tag.php 裡
3.在你網站的根目錄建立個 regions.php 檔案
4.在你的模板的適當的地方加入 {$regionss(中華人民共和國)} 即可

注意： 表單的名字可根據你的需要可以自己修改...


測試頁代碼：



php+ajax動態產生下拉式功能表

regionss 函數代碼：
//省市地3級聯動下拉式功能表函數 regionss 省.市.地
function regionss($country="中華人民共和國")
{
global $db; $i = 1;
$text="省/市/自治區\n"; $result = $db->query("SELECT province FROM ".TABLE_PROVINCE." WHERE country='$country' ORDER BY provinceid"); while($r = $db->fetch_array($result)) { $text .= "".$r['province']." "; $i++; } $text.="";
$text.=" 市/縣/區\n";
$text.="縣級市/縣\n";
return $text;

}

regions.js 的代碼：

//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'); //將伺服器返回的字串寫到頁面中ID為select2的地區
obja = document.getElementById('select3'); //將伺服器返回的字串寫到頁面中ID為select3的地區
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);
//將伺服器返回的字串寫到頁面中ID為select3的地區

}
}
}

資料島 regions.php 頁面代碼

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++;
}
}
?>

地址資訊資料庫：

採用的是phpcms3.0裡內建的資料庫，我沒有進行任何改動

本程式可以在phpcms3.0裡直接使用，若在其他地方使用請自己修改

http://www.bkjia.com/PHPjc/631911.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/631911.htmlTechArticle很簡單的 1.先把 script language=JavaScript src=../include/js/regions.js/script 加到 header.html 頁 2.把 regionss() 函數 加到 /include/tag.php 裡 3.在你網站的根目...

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