Update PHP session variable on change

Question

I have an event listener on an input that executes an ajax request to set PHP session variable.

This works on the first event trigger, but after that, the PHP session variable remains unchanged.

This is my PHP chunk

session_start();
if(isset($_GET['driver'])){ 
        $driver = $_GET['driver'];
        $_SESSION['driver'] = $driver;
}

This is my javascript

$('#save').change(function() {
$.ajax({
                url: 'index.php',
                method: 'GET',
                data: {
                    'driver': 'example'
                }
});

This is my console log. Starting with the first change trigger. I am using dump_session to output the contents of the php variables. Right before the "Attempting ajax request" would be the new modified inputs that are being sent in the ajax request.

builder.js:168 (2) [_.P, _.P]
builder.js:170 ["Galerías Toluca"]
builder.js:171 Attempting ajax request
builder.js:318 array(2) {
  ["destinos"]=>
  string(22) "["GalerÃas Toluca"]"
  ["markers"]=>
  string(82) "[{"lat":19.2889701,"lng":-99.61342109999998},{"lat":19.2898867,"lng":-99.6226059}]"
}

builder.js:168 (3) [_.P, _.P, _.P]
builder.js:170 (2) ["Galerías Toluca", "IEDIS TOLUCA"]
builder.js:171 Attempting ajax request
builder.js:318 array(2) {
  ["destinos"]=>
  string(22) "["GalerÃas Toluca"]"
  ["markers"]=>
  string(82) "[{"lat":19.2889701,"lng":-99.61342109999998},{"lat":19.2898867,"lng":-99.6226059}]"
}

Why would it if you send the same hard coded value each time? Did you want to send a different value each time and if so from what source? — charlietfl
– charlietfl, Commented Nov 17, 2018 at 15:25
I trimmed down my code for readability, these sessions vars will pass to the next page where there is no way to change them, the data from the event listener actually comes from Google Map locations, and markers. This is to be used by an app in my place of work, to control Driver's routes. — Alejandro Jurado
– Alejandro Jurado, Commented Nov 17, 2018 at 15:40

Abdullah Ockba · Accepted Answer · 2018-11-17 16:58:20Z

1

I assume that you already used unset($_SESSION['driver']); before update $_SESSION['driver'] = $driver; and the problem still the same

answered Nov 17, 2018 at 16:58

Abdullah Ockba

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1 Comment

Alejandro Jurado Over a year ago

I hadn't and it worked. Thank you very much sir. You answered my question.

aminelch · Accepted Answer · 2018-11-17 18:35:17Z

1

try this code

require "src/akSession.php" ; 

$session= akSession::getInstance();

if(isset($_GET['driver'])){ 
        $driver = $_GET['driver'];
        $session->set('driver', $driver);
}

don't forget to add composer require aminelch/ak-session to your composer file

answered Nov 17, 2018 at 18:35

aminelch

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