logout and redirecting session in php

Question

the below one is the link in my php site.. after clicking this button the user's session should be terminated and he should be redirected again to the home page.. i have written the coding for this concept as follows but it shows me only a blank page(it is not redirected to the home page).. please correct my codings

<a href="Logout.php">
click here to log out</a>

codings in the Logout.php a follows

<?
session_start();
session_unset();
session_destroy();
ob_start();
header("location:home.php");
ob_end_flush(); 
include 'home.php';
//include 'home.php';
exit();
?>

devasia2112 · Accepted Answer · 2011-01-05 19:12:53Z

57

Only this is necessary

session_start();
unset($_SESSION["nome"]);  // where $_SESSION["nome"] is your own variable. if you do not have one use only this as follow **session_unset();**
header("Location: home.php");

answered Jan 5, 2011 at 19:12

devasia2112

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1 Comment

devasia2112 Over a year ago

All right, nice it is working for you. The session is something very strange at a first glance, but once you learned how to use you will never forget it. :-)

Poelinca Dorin · Accepted Answer · 2011-01-05 19:10:51Z

23

Use this instead:

<?
session_start();
session_unset();
session_destroy();

header("location:home.php");
exit();
?>

answered Jan 5, 2011 at 19:10

Poelinca Dorin

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4 Comments

Dinesh Kumar Over a year ago

it is not working .. i dont know the reason.. otherthings works very well except the logout page

Poelinca Dorin Over a year ago

use ini_set('display_errors',1); error_reporting(E_ALL); before sesson_start and see if any errors popup ( tough it shouldn't )

Dinesh Kumar Over a year ago

"Fernando Costa's" answer worked for me ..i thank you too for ur immediate response

user2188550 Over a year ago

session_unset() is unnecesary.

user463535 · Accepted Answer · 2011-01-05 19:19:45Z

6

<?php
session_start();
session_destroy();
header("Location: home.php");
?>

answered Jan 5, 2011 at 19:19

user463535

Comments

Meenesh Jain · Accepted Answer · 2015-09-29 04:12:14Z

4

<?php

session_start();

session_unset();

session_destroy();

header("location:home.php");

exit();

?>

edited Sep 29, 2015 at 4:12

Meenesh Jain

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answered Sep 29, 2015 at 3:28

Datu Taklob

411 bronze badge

Comments

Joseph at SwiftOtter · Accepted Answer · 2012-12-07 02:32:08Z

0

<?php //initialize the session if (!isset($_SESSION)) {   session_start(); } 
// ** Logout the current user. **
$logoutAction = $_SERVER['PHP_SELF']."?doLogout=true";
if ((isset($_SERVER['QUERY_STRING'])) && ($_SERVER['QUERY_STRING'] != "")){
    $logoutAction .= "&". htmlentities($_SERVER['QUERY_STRING']); 
}

if ((isset($_GET['doLogout'])) &&($_GET['doLogout']=="true")) {
    // to fully log out a visitor we need to clear the session variables
    $_SESSION['MM_Username'] = NULL;
    $_SESSION['MM_UserGroup'] = NULL;
    $_SESSION['PrevUrl'] = NULL;
    unset($_SESSION['MM_Username']);  
    unset($_SESSION['MM_UserGroup']);
    unset($_SESSION['PrevUrl']);
    $logoutGoTo = "index.php";

    if ($logoutGoTo) {
        header("Location: $logoutGoTo");
        exit;
    }
} ?>

edited Dec 7, 2012 at 2:32

Joseph at SwiftOtter

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answered Dec 7, 2012 at 2:00

alex

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2 Comments

Lee Taylor Over a year ago

Please don't just post code-only answers. Please explain why your code is the answer.

Erdal G. Over a year ago

ahahaha responding to @LeeTaylor by a line of code, I don't know if I want to cry or to laugh

416E64726577 · Accepted Answer · 2020-09-10 16:58:41Z

0

The simplest way to log out and redirect back to the login or index:

<?php
    if (!isset($_SESSION)) { session_start(); }
    $_SESSION = array(); 
    session_destroy(); 
    header("Location: login.php"); // Or wherever you want to redirect
    exit();
?>

edited Sep 10, 2020 at 16:58

416E64726577

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answered Sep 10, 2020 at 15:14

UniDoX

1

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