Calling Php Function With Ajax Request to change session variable

Question

I have a communication problem between home.php page and user.php page.

on Homepage there is link for Log out

<span class="log_out"> <a id="logOut">Log Out</a></span>

When a user click this page ajax call will be started

Here is my ajax call

<script>
    $( document ).ready(function() {
        $( "#logOut" ).click(function() {
        $.ajax({
         url: 'class/user.php',
         data: "logout=1",
         success: function(data) {
            $('body').append(data);
         }
         });
        });
});

in user.php I have this

<?php
    if(isset($_GET['logout'])){
        echo "alert";
        $_SESSION['user'] = 0;
    }
?>

When I click logout, alert is being appended in body, but session variable was not changed at all.

I dont know what's going on here.

@ShankarDamodaran yeah I just added it, at least I am not getting session warning, but the problem is still here — Mehmet Eren Yener
– Mehmet Eren Yener, Commented Apr 19, 2014 at 2:29
@PoomrokcThe3years but when i click log out body is appending alert — Mehmet Eren Yener
– Mehmet Eren Yener, Commented Apr 19, 2014 at 2:29

Ryan · Accepted Answer · 2014-04-19 02:28:33Z

1

You need to add session_start(); to the top of your user.php file and also debug with the echo after a session is set, otherwise you'll get the warning you're getting at the moment.

answered Apr 19, 2014 at 2:28

Ryan

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1 Comment

Mehmet Eren Yener Over a year ago

thanks for helping but, it is already done in every page, I posted the answer bleow

Mehmet Eren Yener · Accepted Answer · 2014-04-19 02:34:04Z

1

if(isset($_GET['logout'])){
    if(!isset($_SESSION)) 
    { 
        session_start(); 
    } 
    $_SESSION['user'] = 0;
    Print_r ($_SESSION);

}

I found solution thanks for helping guys, I just need to add session validation on my if else clause, although I have this validation on top of the page, when I added it inside the function, problem fixed

answered Apr 19, 2014 at 2:34

Mehmet Eren Yener

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1 Comment

Shankar Narayana Damodaran Over a year ago

I don't see any else here .. or did you just mean if ?

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