Develop Reference

PHP not accessing Javascript cookie

I am creating a small CRUD web app where I need the user to enter their password when they wish to delete an item from the database, I have an onClick() on the delete button on the HTML table which passes the ID of the product to be deleted to the js function.
When the function runs I wish to confirm that they really want to delete the product and then ask for their password and store it in a cookie. BUT IT DOES NOT SEEM TO WORK :(
I am setting a cookie using javascript like
document.cookie = 'password=${userPassword},expires=${now.toGMTString()},path=/../includes/delete-product.inc.php;
With this line of code, when I console.log(document.cookie), it shows me the cookie in the console like
password=admin,expires=Sat, 12 Dec 2020 08:40:38 GMT,path=/../includes/delete-product.inc.php; PHPSESSID=3n1l3q6ksqitdpc76hjrero9ja
when I redirect to another PHP page using window.open() I can not access this cookie.
print_r($_COOKIE); <- only shows me the PHPSESSID only.
When I explicitly try to access the cookie using the following line
$userPassword = $_COOKIE[password]; it gives me undefined index 'password'
This is my code.
myproject/admin/view-products.php (This is the page where I try to set the cookie using javascript)
function deletePrompt(id) {
const now = new Date();
const time = now.getTime();
const expiresIn = time + (50 * 1000);
now.setTime(expiresIn);
const path = `../includes/delete-product.inc.php`;
const intent = confirm("Are you sure you want to delete this products");
if (intent === true) {
const userPassword = prompt("Enter password");
document.cookie = `password=${userPassword},expires=${now.toGMTString()},path=/../includes/delete-product.inc.php`;
console.log(document.cookie);
return;
window.open(`../includes/delete-product.inc.php?id=${id}`, "_self");
}
}
myproject/includes/delete-product.inc.php (This is the PHP page where I need to access the cookie)
<?php
require_once "./database-connection.inc.php";
require_once "./functions.inc.php";
if (isset($_SESSION["adminId"])) {
$productId = $_GET["id"];
$userPassword = $_COOKIE["password"]; //<- This throws undefined index error
if (deleteProduct($connection, $productId, $userPassword)) {
header("location: ../admin/view-products.php?msg=deleted");
exit();
}
else {
header("location: ../admin/view-products.php?msg=incorrectPass");
exit();
}
}
else {
header("location: ../admin/login.php");
exit();
}

To anyone else facing this the problem, the solution is that cookies don't get sent across directories, so you need to have the recipient file in the same domain if you wish to transfer cookies across them otherwise it won't work.
eg.
Following pattern will work
youProject/someDirectory/file1
youProject/someDirectory/file2
Following will NOT WORK
youProject/someDirectory/file1
youProject/someOtherDirectory/file2

Pass data between two HTML pages (Google Apps Script)

I'm trying to pass var 'id' from the page 'a.html' to 'b.html'. The var content comes from 'code.gs' as below:
code.gs
function data(){
var id = 1;
return id;
}
Next, I get this var and I show it in 'a.html':
a.html
<?
var id = data();
?>
<h1><?= id ?></h1>
Go to B.html
By clicking 'Go to B.html', the system directs the user to there. I need to bring the same value of var 'id' from the page 'a.html' to 'b.html'.
Ps: searching for a little, I saw that there's a kind to send this var by the command 'localStorage', but it's not working for me. :(
Can anybody help me?

Use localstorage
a.html
localStorage.setItem('id',1)
b.html
var id = localStorage.getItem('id')
the other way is to put it in a js file and import it in both html

Storing & Retrieving html data on the server
Client Side JavaScript:
<script>
function saveId(v) {
google.script.run.saveKeyValue({key:'id',value:v});
}
function getId() {
google.script.run
.withSuccessHandler(function(v){
alert('The value is ' + v );
})
.getKeyValue('id');
}
</script>
Server Side Google Apps Script:
function saveKeyValue(obj) {
PropertiesService.getScriptProperties().setProperty(obj.key,obj.value);
}
function getKeyValue(key) {
return PropertiesService.getScriptProperties().getProperty(key);
}
You could also replace PropertiesService with CacheService.
Client To Server Communications
Properties Service

Can't show data in javascript console

I have a registration form in my Laravel project. I submit that registration form data to laravel controller using ajax from javascript. After successfully stored those registration data in database I return the insertedID from controller to javascript and use console.log() function to show that id. In my javascript, console.log() shows that id and auto disappear after half mili second. But I don't want it to disappear.
Here is my js code
var name = $('#reg_name').val(); //reg_name is the id of the input field
var email = $('#reg_email').val(); //reg_email is the id of the input field
$.get( 'signup', {'name': name, 'email': email,'_token':$('input[name=_token]').val()}, function( data )
{
//Here 'signup' is my route name
console.log(data);
});
Here is my controller function
public function signup(RegistrationFormValidation $request)
{
$data = new User();
$data->name = $request->name;
$data->email = $request->email;
$data->save();
$lastInsertedId = $data->id;
if($lastInsertedId > 0)
{
return $lastInsertedId;
}
else
{
return 0;
}
}
Here I concise my code.
What's the problem in my javascript ?

If you are loading a new page, the default behaviour of the Chrome Dev Tools is to clear the logs. You can enable the Preserve log checkbox at the top of the console to prevent this behaviour.
In other situations, the data emitted to the console is modified after the logging to reflect subsequent updates. To prevent this, one can log a JSON serialized version of the data:
console.log(JSON.stringify(data))
(but probably this is not your case).

Executing php script on button click and returning value by ob_start

I have button which in enclosed by <a> tag. When clicked, it executes redirect.php script.
login.php - contains
<input type = "button" id = "loginButton2" class = "btn btn-primary" value = "Login | Twitter " style = "left:650px; margin-top: -32px; position:relative"/>
redirect.php contains twitter authentication code. If authenticated successfully then gives id and name. I want to fetch these both value in index.php
Using ob_start(); I can receive values from php script to JS function via json.
But I am confused about how to manage the code in index.php to execute script on button click and receiving these two value also.
redirect.php
<?php
session_start();
require_once('twitteroauth/twitteroauth.php');
require_once('config.php');
if (empty($_SESSION['access_token']) || empty($_SESSION['access_token']['oauth_token']) || empty($_SESSION['access_token']['oauth_token_secret'])) {
header('Location: ./clearsessions.php');
}
$access_token = $_SESSION['access_token'];
$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $access_token['oauth_token'], $access_token['oauth_token_secret']);
$content = $connection->get('account/verify_credentials');
$twitteruser = $content->{'screen_name'};
$notweets = 5;
$tweets = $connection->get("https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=".$twitteruser."&count=".$notweets);
$id = $content->{'id'};
$name = $content->{'name'};
?>
Please let me know if you need further explaination.
Bottomline:
Rather executing redirect.php script on link click, I want it to execute via function on button click event.
Getting id and name from redirect.php to index.php after redirect script executed
I already have session_start() to manage the twitter session. So dont want to mess up using mutiple session if not necessary ..
UPDATE after david's answer
<body>
<input type="button" value="Run somePHPfile.php" id = "b1" />
<script>
$('#b1').click(function () {
window.location.href = 'redirect.php';
$.get('index.php', function(data) { //If I put this out side click then it gives undefined value for name and id before redirect.php gets executed
// data.id is the id
var id= data.id;
var name = data.name;
alert(name);
});
});
</script>
</body>
Apologize to say:
On button click redirect.php script executed. redirect.php includes other files, which finally reach to index.php. And index.php returns name and id.
So is this enough to manage it : $.get('index.php', function(data) { ... }

To bind to a click event of an HTML button, you would use JavaScript. Since you tagged the question with jQuery, I'll assume its use. The event handler would look something like this:
$('#loginButton2').click(function () {
window.location.href = 'redirect.php';
});
Note: This simulates an anchor click effectively. If you instead want to more closely resemble an HTTP redirect, you might want to use this instead:
window.location.replace('redirect.php');
As for the id and name values, how exactly does this flow return the user to index.php in the first place? Your redirect.php has, well, a redirect (though not all code paths result in that) so it kind of assumes non-AJAX interaction. (I think XHR follows redirects sometimes, but the behavior is different from one browser to another.)
If the redirect isn't terribly important and you just want to make an AJAX call to redirect.php, then you can do that with a simple AJAX request:
$.get('redirect.php');
In order to get those values back to the page, they'll need to be emitted from redirect.php. Something like this:
echo json_encode((object) array('id' => $id, 'name' => $name));
Then in the client-side code you would have those values available in the AJAX callback:
$.get('redirect.php', function(data) {
// data.id is the id
// data.name is the name
// use these values client-side however you need
});

<script>
$("#loginButton2").on('click',function(){
window.location.href="redirect.php";
});
</script>
and in redirect.php file
$_SESSION['id']=$id ;
$_SESSION['name']=$name;
and also
<input type = "button" id = "loginButton2" class = "btn btn-primary" value = "Login | Twitter " style = "left:650px; margin-top: -32px; position:relative"/>
to
<input type = "button" id = "loginButton2" class = "btn btn-primary" value = "Login | Twitter " style = "left:650px; margin-top: -32px; position:relative"/>

How to send variable from javascript to PHP on azure websites?

To simplify the problem, all I want is passing 3 variable from javascript to PHP. So let say I have 4 varible : a,b,c,message.
I have tried the following ways:
1)The code below is in my javascript file
window.location.href="somewebsite.php?x=" + a + "&y=" + b + "&z=" + c + "&msg=" + message;
I saw that it actually passing the values to URL, it jump to the PHP website that specifies in the code above but somehow nothing is getting from $_POST['x'] ( I even try $_GET['x'] and $_REQUEST('x') but none of them works at all)
2) Then I tried with ajax
$.post("somewebsite.php",{x:a, y:b, z:c, msg:message})
And same as above nothing are passed to the PHP website.
3) I tried with form submit
I put everything into a form and submit it to the PHP website but what I get from $_POST is an empty array.
So I conclude that something is wrong with azurewebsites server. This is the first time I used window azure so I don't know how it even works. Any suggestion would be appreciated.

you can try out ajax function
$.ajax({
url:"url",
method:"post",
data:{x:a, y:b, z:c, msg:message},
success:function(data)
{
// success code
},
error:function(error)
{
// error code ;
}
});

Should work:
Your js file:
$(document).ready(function(){
var aval = "testas";
var bval = "testas2";
var cval = "testas3";
var msg = "testas4";
$.post('test.php',{a:aval,b:bval,c:cval,message:msg},function(resp){
alert(resp);
});
});
php file should look like:
<?php
$resp = "";
foreach($_POST as $key => $val){
$resp .= $key.":".$val." \n";
}
echo $resp;
?>
After post alert should give response of all sent post values.
I hope it helped you. If yes, don't forget resp. Thanks.

Try sending an array to your somewebsite.php write this inside a function on jquery code.
It must work if you place it on a good place on your code.
var x=new Array();
x[0]='field0';
x[1]='field1';
x[2]='fieldN';
$.post('somewebsite.php',x,function(x){
alert(x);
});
Your somewebsite.php could be like this.
<?php
if(!isset($_POST['x']))$x=array();else $x=#$_POST['x'];
for($i=0;$i<count($x);$i++)
echo "X ($i) = ".$x[$i];
?>
Happy codings!