Click on a button executes this Ajax request
$.ajax({
type: "GET",
url: "json-responses.php?fct=validationCode&userMail=" + userMail,
success: sendValidationCode()
});
if successfull the sendValidationCode() function is invoked which executes another Ajax request
function sendValidationCode()
{
$.ajax({
type: "GET",
url: "json-responses.php?fct=sendValidationCode&userMail=" + userMail,
success: function()
{
location.replace("reset-forgotten-pw?user=" + userMail);
}
});
}
Here is the code from the json-responses.php file :
if ($_GET['fct'] == 'validationCode')
{
$_SESSION['v_Code'] = random_str(6, '0123456789');
$result = createValidationCode($connectionObject, $_GET['userMail'], do_crypt($_SESSION['v_Code']));
echo $result;
}
if ($_GET['fct'] == 'sendValidationCode')
{
$volTo = $_GET['userMail'];
$volAckString = $image . "<h1>Password assistance</h1><p>To verify your identity, please use the following code:</p>".$_SESSION['v_Code'].;
unset($_SESSION['v_Code']);
}
I was assuming that as the 'validationCode' part is called before the $_SESSION['V_Code'] variable would be set and available when the second file invokes 'sendValidationCode' file. However the mail the user receives does not contain any validation code. Now if I restart the process (means the session remains open during the 'validationCode' part I get a new $_SESSION variable and in the 'sendValidationCode' part the "old" $_SESSION['v_Code'] is sent to the user. (Besides the unset.... does not have any effect.)
Related
Using the following Ajax POST function on form submit (simplified here):
$form.on("submit", function (i) {
i.preventDefault();
var sendEmail = 1;
ValidateForm(sendEmail, "goSignup");
});
function ValidateForm(sendEmail, action) {
$.ajax({
type: "POST",
url: window.location.pathname,
dataType: "json",
data: {
ajaxRequest: 1,
sendEmail: sendEmail,
}
}
After I post this I want to use a conditional GET parameter that equals 1 (i.e https://www.example.com?test-parameter=1) and then if it's present in the URL use one or another function from there if the ajaxRequest is received from $_POST in my PHP:
public function __construct() {
$testingParameter = $_GET["test-parameter"] ?? '';
if (trim($testingParameter) == '1') { // if has get parameter equal
if (!empty($_POST['ajaxRequest'])) { // if JS postRequest has been posted
$this->handlePostRequests();
}
echo 'has get parameter';
} else { // else use old logic
if (!empty($_POST['ajaxRequest'])) {
$this->handleOtherRequests();
}
echo 'no get parameter';
}
}
Issue:
I get the correct echo from PHP but when I submit the form with Ajax its still using the handleOtherRequests(); instead of the handlePostRequests(); function if I'm using the url www.example.com?test-parameter=1.
Likely getting some basic PHP logic wrong here, would appreciate if anyone could guide me in the right direction with this.
url: window.location.pathname,
Your Ajax is never going to POST the data to a URL with a query string because you explicitly took only the path name.
Maybe you want location.href instead.
good afternoon from gmt+8 timezone.
I had built a login/system , now I want to implement a function that will click out users , so i make a status column in the db ,
2 types of values , lock => lock , active => not lock.
I can use crud method to update the status and output in a table. surely i cam lock the user , and status change to lock, that is working fine, but the problem is the locked user still has access the to system , since the session still valid , she/he has to close the browser or their session is terminated.
on the login page I check if user is lock then can login.
since the user still has access when the session still valid , I want to input ajax call the server to check the status on setInterval.
on backend php: check if user is lock , terminate the session , give alerts box and redirect.
but the issue now is my code is not working， here are my ajax call , if I un-comment //console.log('success');, success will be kept in console.log , meaning the call is success.
<script>
function getUserStatus(){
$.ajax({
type: "POST",
url: 'ajax/ajax.php',
data: {username: '<?php echo $_SESSION['admin_username'] ;?>' },
success: function(response){
//console.log('success');
}
});
}
setInterval(function(){
getUserStatus();
},3000);
</script>
on my ajax.php page , I make sure connection to db is working,
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$admin_username = check_input($_POST['username']);
if( isLocked($admin_username) ){
session_destroy();
echo "<script>window.alert('you had been clicked out');window.location.href='../index.php';</script>";
}
}
function to check user is lock
function isLocked($username){
global $connection ;
$query = "SELECT status FROM table where name = '$username' ";
$result = mysqli_query($connection,$query);
confirm($result);
while( $row = fetch_array($result)){
if($row['status'] == 'locked' ){
return true;
}else{
return false;
}
}
}
if i directly access ajax.php with the log user , below action is working .
if( isLocked($admin_username) ){
session_destroy();
echo "<script>window.alert('you had been clickedout');window.location.href='../index.php';</script>"; }
not sure what is wrong with my codes and how to fix it ?
any assistance/suggestion would be highly appreciated .
your ajax.php echos something, that may be data, a json or in your case a js script.
The ajax calls ajax/ajax.php, if the http request succeeds it enters
success:
function(response){
//console.log('success');
}
so the variable response holds the output of that call to ajax/ajax.php. if you use
$.ajax({
type: "POST",
url: 'ajax/ajax.php',
dataType: "script",
data: {username: '<?php echo $_SESSION['admin_username'] ;?>' },
success: function(response){
//console.log('success');
}
the value of "response" will be executed if it is a working script.(without tags)
further information you can find here:
http://api.jquery.com/jQuery.ajax/
without dataType: "script",in the call you could do something like that:
function(response){
//console.log('success');
$('#somediv').html(response);
}
that will insert the result in a div, if it is a well formated js script, it will be executed.
I have a javascript that needs to pass data to a php variable. I already searched on how to implement this but I cant make it work properly. Here is what I've done:
Javascript:
$(document).ready(function() {
$(".filter").click(function() {
var val = $(this).attr('data-rel');
//check value
alert($(this).attr('data-rel'));
$.ajax({
type: "POST",
url: 'signage.php',
data: "subDir=" + val,
success: function(data)
{
alert("success!");
}
});
});
});
Then on my php tag:
<?php
if(isset($_GET['subDir']))
{
$subDir = $_GET['subDir'];
echo($subDir);
}
else
{
echo('fail');
}?>
I always get the fail text so there must be something wrong. I just started on php and jquery, I dont know what is wrong. Please I need your help. By the way, they are on the same file which is signage.php .Thanks in advance!
When you answer to a POST call that way, you need three things - read the data from _POST, put it there properly, and answer in JSON.
$.ajax({
type: "POST",
url: 'signage.php',
data: {
subDir: val,
}
success: function(answer)
{
alert("server said: " + answer.data);
}
});
or also:
$.post(
'signage.php',
{
subDir: val
},
function(answer){
alert("server said: " + answer.data);
}
}
Then in the response:
<?php
if (array_key_exists('subDir', $_POST)) {
$subDir = $_POST['subDir'];
$answer = array(
'data' => "You said, '{$subDir}'",
);
header("Content-Type: application/json;charset=utf-8");
print json_encode($answer);
exit();
}
Note that in the response, you have to set the Content-Type and you must send valid JSON, which normally means you have to exit immediately after sending the JSON packet in order to be sure not to send anything else. Also, the response must come as soon as possible and must not contain anything else before (not even some invisible BOM character before the
Note also that using isset is risky, because you cannot send some values that are equivalent to unset (for example the boolean false, or an empty string). If you want to check that _POST actually contains a subDir key, then use explicitly array_key_exists (for the same reason in Javascript you will sometimes use hasOwnProperty).
Finally, since you use a single file, you must consider that when opening the file the first time, _POST will be empty, so you will start with "fail" displayed! You had already begun remediating this by using _POST:
_POST means that this is an AJAX call
_GET means that this is the normal opening of signage.php
So you would do something like:
<?php // NO HTML BEFORE THIS POINT. NO OUTPUT AT ALL, ACTUALLY,
// OR $.post() WILL FAIL.
if (!empty($_POST)) {
// AJAX call. Do whatever you want, but the script must not
// get out of this if() alive.
exit(); // Ensure it doesn't.
}
// Normal _GET opening of the page (i.e. we display HTML here).
A surer way to check is verifying the XHR status of the request with an ancillary function such as:
/**
* isXHR. Answers the question, "Was I called through AJAX?".
* #return boolean
*/
function isXHR() {
$key = 'HTTP_X_REQUESTED_WITH';
return array_key_exists($key, $_SERVER)
&& ('xmlhttprequest'
== strtolower($_SERVER[$key])
)
;
}
Now you would have:
if (isXHR()) {
// Now you can use both $.post() or $.get()
exit();
}
and actually you could offload your AJAX code into another file:
if (isXHR()) {
include('signage-ajax.php');
exit();
}
You are send data using POST method and getting is using GET
<?php
if(isset($_POST['subDir']))
{
$subDir = $_POST['subDir'];
echo($subDir);
}
else
{
echo('fail');
}?>
You have used method POST in ajax so you must change to POST in php as well.
<?php
if(isset($_POST['subDir']))
{
$subDir = $_POST['subDir'];
echo($subDir);
}
else
{
echo('fail');
}?>
Edit your javascript code change POST to GET in ajax type
$(document).ready(function() {
$(".filter").click(function() {
var val = $(this).attr('data-rel');
//check value
alert($(this).attr('data-rel'));
$.ajax({
type: "GET",
url: 'signage.php',
data: "subDir=" + val,
success: function(data)
{
alert("success!");
}
});
});
});
when you use $_GET you have to set you data value in your url, I mean
$.ajax({
type: "POST",
url: 'signage.php?subDir=' + val,
data: "subDir=" + val,
success: function(data)
{
alert("success!");
}
});
or change your server side code from $_GET to $_POST
I'm currently trying to make live form validation with PHP and AJAX. So basically - I need to send the value of a field through AJAX to a PHP script(I can do that) and then I need to run a function inside that PHP file with the data I sent. How can I do that?
JQuery:
$.ajax({
type: 'POST',
url: 'validate.php',
data: 'user=' + t.value, //(t.value = this.value),
cache: false,
success: function(data) {
someId.html(data);
}
});
Validate.php:
// Now I need to use the "user" value I sent in this function, how can I do this?
function check_user($user) {
//process the data
}
If I don't use functions and just raw php in validate.php the data gets sent and the code inside it executed and everything works as I like, but if I add every feature I want things get very messy so I prefer using separate functions.
I removed a lot of code that was not relevant to make it short.
1) This doesn't look nice
data: 'user=' + t.value, //(t.value = this.value),
This is nice
data: {user: t.value},
2) Use $_POST
function check_user($user) {
//process the data
}
check_user($_POST['user'])
You just have to call the function inside your file.
if(isset($_REQUEST['user'])){
check_user($_REQUEST['user']);
}
In your validate.php you will receive classic POST request. You can easily call the function depending on which variable you are testing, like this:
<?php
if (isset($_POST['user'])) {
$result = check_user($_POST['user']);
}
elseif (isset($_POST['email'])) {
$result = check_email($_POST['email']);
}
elseif (...) {
// ...
}
// returning validation result as JSON
echo json_encode(array("result" => $result));
exit();
function check_user($user) {
//process the data
return true; // or flase
}
function check_email($email) {
//process the data
return true; // or false
}
// ...
?>
The data is send in the $_POST global variable. You can access it when calling the check_user function:
check_user($_POST['user']);
If you do this however remember to check the field value, whether no mallicious content has been sent inside it.
Here's how I do it
Jquery Request
$.ajax({
type: 'POST',
url: "ajax/transferstation-lookup.php",
data: {
'supplier': $("select#usedsupplier").val(),
'csl': $("#csl").val()
},
success: function(data){
if (data["queryresult"]==true) {
//add returned html to page
$("#destinationtd").html(data["returnedhtml"]);
} else {
jAlert('No waste destinations found for this supplier please select a different supplier', 'NO WASTE DESTINATIONS FOR SUPPLIER', function(result){ return false; });
}
},
dataType: 'json'
});
PHP Page
Just takes the 2 input
$supplier = mysqli_real_escape_string($db->mysqli,$_POST["supplier"]);
$clientservicelevel = mysqli_real_escape_string($db->mysqli,$_POST["csl"]);
Runs them through a query. Now in my case I just return raw html stored inside a json array with a check flag saying query has been successful or failed like this
$messages = array("queryresult"=>true,"returnedhtml"=>$html);
echo json_encode($messages); //encode and send message back to javascript
If you look back at my initial javascript you'll see I have conditionals on queryresult and then just spit out the raw html back into a div you can do whatever you need with it though.
NOTE:
I gave up on trying to do the processing in one go, and just let it return after every x number of sends.
Two paths,
/sms?action=send
/sms?action=status
Let's say that the send path starts sending 10,000 sms messages via REST api calls.
I make a call to that page via ajax.
Then every few seconds, I make a call to /sms?action=status to see how the progress is going, and to update a progress bar.
The status path returns false if no messages are being sent.
What ends up happening is that the ajax call to the SEND path gets the ajax success: function called almost instantly, even though I know the script is taking 1+ minute to complete execution.
My progress bar never gets shown because the status ajax call (which is in a set interval with a few second delay) never seems to actually get called until the send call completes.
I'm trying to put the relevant code in here, but it may not be as clear as it should be without all the context.
<script type="text/javascript">
var smsInterval = 0;
var smsSending = false;
$(document).ready(function() {
var charCount = 0;
var smsText = "";
var smsTotal = <?php echo $options["smsTotal"]; ?>;
<?php if($options["sending"]): ?>
smsStatus();
smsSending = true;
smsInterval = setInterval("smsStatus()", 5000);
<?php endif; ?>
$("span#smsadmin_charcount").html(charCount.toString());
//send button
$("div#smssend").click(function() {
if(smsSending == true) {
return false;
}
smsStatus();
var dataString = $("#smsadmin_form").serialize();
smsSending = true;
$("div#smssend").html("Sending...");
$.ajax({
type: "POST",
url: "<?php echo $base_url; ?>/admin/sms",
data : dataString,
success: function(data) {
},
error: function(request, error) {
$("div.notice.sms").html("ERROR "+error+ "REQUEST "+request);
}
});
});
});
function smsStatus() {
var dataString = "smsaction=status&ajax=true";
$.ajax({
type: "POST",
url: "<?php echo $base_url; ?>/admin/sms",
data : dataString,
success: function(data) {
//data being false here indicates the process finished
if(data == false) {
clearInterval(smsInterval);
var basewidth = $("div.sms_progress_bg").width();
$("div.sms_progress_bar").width(parseInt(basewidth));
$("div.sms_progress_notice").html(parseInt(100) + "% Complete");
smsSending = false;
$("div#smssend").html("Send To <?php echo $options["smsTotal"]; ?> Recipients");
} else {
var pcomplete = parseFloat(data);
$("div.sms_progress_bg").show();
var basewidth = $("div.sms_progress_bg").width();
$("div.sms_progress_bar").width(parseInt(basewidth * pcomplete));
$("div.sms_progress_notice").html(parseInt(pcomplete * 100) + "% Complete");
}
},
error: function(request, error) {
$("div.notice.sms").html("ERROR "+error+ "REQUEST "+request);
}
});
}
I might be missing the point, but inside the $("div#smssend").click you got this line:
smsStatus();
shouldn't it be:
smsInterval = setInterval("smsStatus()", 5000);
and INSIDE the success: function(data) for /admin/sms ?
If the send part is sending out 10k messages, and the status returns true if currently sending a message, and false if in between sending, then you have a design issue.
For example, what is status supposed to be showing?
If status is to show how many of a certain block have been sent, then what you can do is to submit the message to be sent (or addresses), and get back some id for that block.
Then, when you ask for a status, pass the id, and your server can determine how many of that group has been sent, and return back the number that were successful, and unsuccessful, and how many are still pending. If you want to get fancy, you can also give an indication how much longer it may be before finishing, based on how many other requests are also pending.
But, how you approach this really depends on what you expect when you ask for the status.