PHP AJAX - Php session variables are null on other php files.

[PHP] AJAX - Php session variables are null on other php files. - Printable Version

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+---- Thread: [PHP] AJAX - Php session variables are null on other php files. (/showthread.php?tid=6074158)

AJAX - Php session variables are null on other php files. - Aussie - May 3, 2020

Duly note, I am using session_start(); preceding any code in both these php files:

Problem in a minimum reduced format:

index.php

PHP Code 


<?php
  session_start();
  $_SESSION['msg'] = 'hello';
?>

Inside index.php, posting to add_to_cart.php using AJAX.

PHP Code 


<?php 
$.ajax({
                type:"POST",
                url:"add_to_cart.php",
                async: false, //tested with this true and now false
                data:{test_product:productName},
                success:function(response){
                  alert(response);
                }
              }); 

add_to_cart.php:

PHP Code 


<?php
    session_start();

    echo json_encode($_SESSION['msg']);
?>

The output of the alert is null

RE: AJAX - Php session variables are null on other php files. - Charger - May 3, 2020

in add_to_cart.php do this and see what happens.

PHP Code 


<?php
    session_start();
    print_r($_SESSION);
    echo json_encode($_SESSION['msg']);
?>

RE: AJAX - Php session variables are null on other php files. - Aussie - May 3, 2020

Hi,

I have done a var_dump on two servers. My home nginx, and my apache.

The vardump reveals session is intact in apache, however null on nginx. I will tweak the settings accordingly. There seems to be no issue with the code.

Thanks to the above answers.

Thread closed.