In this example we create two files
(1) is index.php, which is client side file.
(2) is ajax_results.php, which is server side file.
You can download code from this url
In index.php file
[php]
<html>
<head>
<script>
function Ajaxfun(){
var ajaxRequest; // The variable that makes Ajax possible!
try{
// Opera 8.0+, Firefox, Safari
ajaxRequest = new XMLHttpRequest();
}catch (e){
// Internet Explorer Browsers
try{
ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
}catch (e) {
try{
ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
}catch (e){
// Something went wrong
alert("Your browser broke!");
return false;
}
}
}
// Now get the value from user name, user sex and pass it to
// server script.
var uname = document.getElementById(‘uname’).value;
var usex = document.getElementById(‘usex’).value;
var queryString = "?uname=" + uname ;
queryString += "&usex=" + usex;
ajaxRequest.open("GET", "ajax-results.php" + queryString, true);
ajaxRequest.send(null);
// Create a function that will receive data
// sent from the server and will show data on the ajax div.
ajaxRequest.onreadystatechange = function(){
if(ajaxRequest.readyState == 4){
var ajaxDisplay = document.getElementById(‘ajaxDiv’);
ajaxDisplay.innerHTML = ajaxRequest.responseText;
}
}
}</script>
</head>
<body>
<form>
<div>
<div style="float: left;width:30%">
Your Name
</div>
<div style="float: left;width:70%">
<input type="text" id="uname" />
</div>
</div>
<div>
<div style="float: left;width:30%">
Your Sex
</div>
<div style="float: left;width:70%">
<select name="usex" id="usex">
<option value="">Select</option>
<option value="male">Male</option>
<option value="female">Female</option>
</select>
</div>
</div>
<div style="clear: both"></div>
<div align="center" onClick="Ajaxfun()">
<span style="background-color:#3a5795; color:#fff; cursor: pointer;">Get</span>
</div>
<div style="clear: both"></div>
<div id="ajaxDiv"></div>
</form>
</body>
</html>
[/php]
In ajax_request.php
[php]
<?php
$uname=$_REQUEST[‘uname’];
$usex=$_REQUEST[‘usex’];
$errmsg="";
$err_count=0;
if($uname==”)
{
$errmsg .="Please write the name";
$err_count++;
}
if($usex ==”)
{
$errmsg .="Please select the sex";
$err_count++;
}
if($err_count==0)
{
echo "Hi, your name is $uname and sex is $usex";
}else{
echo $errmsg;
}
?>
[/php]
Output is:-
