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Lagging behind the first php+mysql province, city, prefecture level 3 linkage non-refresh menu source code using ajax technology_PHP tutorial
Lagging behind the first php+mysql province, city, prefecture level 3 linkage non-refresh menu source code using ajax technology_PHP tutorial
Absolutely original
Test address: http://www.mlmm.cn/mypage/?name=ceshi
Test page code:
regionss Function code:
QUOTE:
function regionss($country="People's Republic of China")
{
global $db; $i = 1;
$text=" ";
id="select2" name= "select2" onchange="startRequesta()" style="width:90px;">n";
$text.="
var xmlHttp;
var xmlHttpa;
function createXMLHttpRequest() {
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
}
}
function createXMLHttpRequesta() {
if (window.ActiveXObject) {
xmlHttpa = new ActiveXObject("Microsoft.XMLHTTP");
}
else if (window.XMLHttpRequest) {
xmlHttpa = new XMLHttpRequest();
}
}
function startRequest() {
createXMLHttpRequest();
createXMLHttpRequesta();
xmlHttp.onreadystatechange = handleStateChange;
xmlHttpa.onreadystatechange = handleStateChangearea;
document.getElementById('select2').options.length = 0;
document.getElementById('select3').options.length = 0;
var url = document.form1.select1.value;
var qurl = "/regions.php?province="+url+"&time="+new Date().getTime();
xmlHttp.open("GET", qurl, true);
xmlHttp.send(null);
//setTimeout("startRequest()",2000);
}
function handleStateChange() {
if(xmlHttp.readyState == 4) {
if(xmlHttp.status == 200) {
var obj = document.getElementById('select2'); //将服务器返回的字符串写到页面中ID为select2的区域
obja = document.getElementById('select3'); //将服务器返回的字符串写到页面中ID为select3的区域
eval(xmlHttp.responseText);
}
}
}
function handleStateChangearea() {
eval(xmlHttpa.responseText);
}
//var ab = new Array();
function startRequesta() {
createXMLHttpRequesta();
xmlHttpa.onreadystatechange = handleStateChangea;
document.getElementById('select3').options.length = 0;
var url = document.form1.select2.value;
var qurl = "/regions.php?city="+url+"&time="+new Date().getTime();
xmlHttpa.open("GET", qurl, true);
xmlHttpa.send(null);
//setTimeout("startRequest()",2000);
}
function handleStateChangea() {
if(xmlHttpa.readyState == 4) {
if(xmlHttpa.status == 200) {
var obja = document.getElementBy Id('select3' );
eval(xmlHttpa.responseText);
//Write the string returned by the server to the area with the ID select3 on the page
} 🎜>
Data Island regions.php page code
Copy code
if($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++;
}
}
?> No changes have been made
This program can be used directly in phpcms3.0. If used elsewhere, please modify it yourself
http://www.bkjia.com/PHPjc/317597.html
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