HTTPRequest ajax error with slesh in end of Uri in codeigniter - javascript

Help guest...
i make web using framework Codeigniter and also using ajax XMLHttp Request to load some data from DB.
if i open the link Like this
localhost/web/topsales
every things is OK like this. Images
but if i add slash in end of url
localhost/web/topsales/
the result is error. Ajax load and duplicate the pages view like this image
i use AJAX XMLHttp Request for load the data:
function showdata()
{
var idunit = document.getElementById('idunit').value;
var month = document.getElementById('month').value;
var year = document.getElementById('year').value;
var xmlhttp;
document.getElementById("result").innerHTML = "<div class='text-center'>Loading...</div>"; //xmlhttp.responseText
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("result").innerHTML = xmlhttp.responseText; //xmlhttp.responseText
}
}
xmlhttp.open("POST","showresult",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send("idunit="+idunit+"&month="+month+"&year="+year);
}
please i need help, thanks so much for some advice.

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thanks!
<script>
var txt = "";
txt=httpGet("https://www.google.com");
alert(txt.length.toString());
function httpGet(theUrl) {
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
else {// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
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So I'd have to say your best bet would be to look into making an HTTP (or XHR) request from javascript.
check: Return HTML content as a string, given URL. Javascript Function
function httpGet(theUrl)
{
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
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{
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}
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function ReadFromFile(filename)
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xmlhttp = new XMLHttpRequest();
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I am working on a webpage that needs to store data on the server in a .json file.
Here is what I have tried so far:
Javascript code:
// variable j = our json
var j;
function loadDoc(){
var xmlhttp;
if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
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var xhr;
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xhr.onreadystatechange = function(){
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};
The PHP file:
<?php
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file_put_contents('things.json', $data);
?>
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Cheers!
If you vote down, please tell me why.
To POST data like an HTML form, add an HTTP header with setRequestHeader(). (w3school page)
so it must be :
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I have a website that uses a javascript function below to populate List 2 when an item from the drop down List 1 is chosen. What I would like to achieve is to have List 2 and List 3 updated. The function is shown below works for both List 2 and List 3 separately but using an alert I can see that it stops after the first send if I put them together. How can I am make them both work together?
This is the Select that calls the function checkTeacherList which is working fine.
<select name="department_list" id="department_list" selected="All" onchange="checkTeacherList(this.value, '<?php echo $user_login;?>');" >
Th eJavaScript function checkTeacherList
<script type="text/javascript">
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{
var xmlhttp;
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if (window.XMLHttpRequest)
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xmlhttp=new XMLHttpRequest();
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else
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xmlhttp.send();
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else
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The alert is not called because you are calling "xmlhttp.send();" twice.
The second call yields an error.
it is not really a good way to solve this problem. I should focus on setting up ONE AJAX connection , that the script just have to ask one connection.
The major advantage of using this method is the time required to gather all data. It will be double faster then doing it twice.
However, i am not sure if you can modify the php files.
If so, please edit it. I have noticed that both requests contains of same parameters.
in js;
// function to fill option
var fillOptions = function(data) {
// use data to fill drop down boxes
var teacher1 = data["teacher1"]; // get $teacher1 which is in 'teacher1'
var teacher2 = data["teacher2"]; // get $teacher2 which is in 'teacher2'
}
// function to check teacher list
function checkTeacherList(departmentName, schoolName)
{
// create object by browser type
var xmlhttp;
// code for IE7+, Firefox, Chrome, Opera, Safari
if (window.XMLHttpRequest) xmlhttp=new XMLHttpRequest();
// for IE6, IE5
else xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
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xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
// get data
var data = JSON.parse(xmlhttp.responseText);
// send to function to handle it
fillOptions(data);
}
}
// open link
xmlhttp.open("GET","http://website/getAllTeachers.php?schoolName="+schoolName+"&departmentName="+departmentName+"&nocache="+d.getSeconds(),true);
// send
xmlhttp.send();
}
and in getAllTeachers.php ( a new php file, but you can wrap your two php file in one if you want)
$teacher1 = ... // teacher1 list
$teacher2 = ... // teacher2 list
// return with a JSON type
header('Content-Type: application/json');
// reply with json format
echo json_encode(array('teacher1' => $teacher1, 'teacher2' => $teacher2));
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(i don't know the response content, but
document.getElementById("nondepartmentTeachers").innerHTML = data["teacher2"];
should achieve the same result as intended )
If you want to go with your solution, you have called .send() function twice, which the second one will return into errors.

sending image as a parameter in xmlhttprequest Post method failed

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