How can I attach the POST variable values to a new SESSION variable in AJAX and call it from other script?

Question

I checked the accepted answer of this question it but didn't help

I'm trying to make an AJAX Post Request to sumbit my signup form, the ajax.php file will check the entered information, example passwords match or not, and then attach the $_POST variable to a $_SESSION variable so that I can call the submitted data from any other page later.

Ajax.php

...
if ($everythingValid) {
// add this user to db
$_SESSION["signup_details"] = $_POST;
echo "SUCCESS@".$core->signupPaymentUrl($package); // tried without this line but didn't work
exit(); // tried without this line but didn't work
} else {
foreach ($errors as $e) print "<br>".$e;
exit();     
}
...

The jquery code that I'm using to call the file is the below:

var form = $('#signup');

 $("#submit").click(function() {

$.ajax( {
  type: "POST",
  dataType: 'html',
  crossDomain: true,
  url: form.attr( 'action' ),
  data: form.serialize(),
  success: function( response ) {
  if ("SUCCESS" === $.trim(response.split('@')[0])) {
  // user created, redirect to payment page
  var paymentUrl = $.trim(response.split('@')[1]);
  window.location.href = paymentUrl;
  } else {
    $("b#signupErr").hide();
    $("b#signupErr").html(response);
    $("b#signupErr").fadeIn();
    }
  }
} );

});

After submitting the form, I successfully get redirected to the payment Url, however, after accessing the page where I want to use my session, I cannot figure out how to retrieve my session although I'm pretty sure that I have included session_start in both of ajax.php and completeOrder.php and no blank spaces before the opening php tag.

here is the line that I included in both files :

if(!session_id())  session_start();

I tried to var_dump the $_SESSION variable on ajax.php and It looks okay. However when I var_dump the session variable on completeOrder.php it shows me NULL

Finally here is the completeOrder.php content

if(!session_id())  session_start();

require_once("core.php");
$core = new coreOptions();
$email = $_SESSION["signup_details"]["email"];
$password = $_SESSION["signup_details"]["password"];
$package = $_SESSION["signup_details"]["pkg"];

$options = $core->attachOptions($package);

if ($core->registerUser($email,$password,$options,$package)) 
$core->redirect("registrationCompleted.php");

How should we know what your `completeOrder.php` file does and how it does look? — idmean, Jun 21 '14 at 20:43

score 0 · Answer 1 · answered Jun 21 '14 at 20:47

0

in the completeOrder.php file remove if(!session_id()) session_start();

and then only add session_start(); and it will do the trick!

answered Jun 21 '14 at 20:47

Amin Jafari

7,157
2
18
43

score 0 · Answer 2 · answered Jun 21 '14 at 20:48

0

session_id() will return an empty string in ajax.php if there was no call to session_start() before. So the in ajax.php session_start() will never be called and the content of $_SESSION won't be stored anywhere.

So just use:

session_start();

in both files.

answered Jun 21 '14 at 20:48

idmean

14,540
9
54
83

I used only session_start on both files but that didn't help. – Rafik Bari Jun 21 '14 at 20:59
Yes but with this if clause. Remove the if clause completely. – idmean Jun 21 '14 at 21:00
This `session_start();` replaces this `if(!session_id()) session_start();`completely. – idmean Jun 21 '14 at 21:01
I know that. I did exactly what you mentioned in your answer. – Rafik Bari Jun 21 '14 at 21:01
Does `core.php` do anything to sessions? – idmean Jun 21 '14 at 21:03
Thank you.. I was destroying the session in _construct function. Thank you for help. That was very stupid mistake – Rafik Bari Jun 21 '14 at 21:06

How can I attach the POST variable values to a new SESSION variable in AJAX and call it from other script?

2 Answers2