a log-out hyperlink in PHP? - php

Question

In case somebody knows, how can I make a hyperlink in PHP...
<?php
echo( 'Log-out' );
?>
that would not only to navigate to the first page, but also remove cookies?
Thanks!

Answer 1

You can make another page which clears all the cookies (i.e. sets them to expire in the past) and then redirects to index.php:
// page: clear.php
<?php
session_start();
$_SESSION = array();
session_destroy();
setcookie('cookie1', '', strtotime('-2 days'));
setcookie('cookie2', '', strtotime('-2 days'));
// etc.
header('Location: index.php');
exit();

Answer 2

I usually use the method prescribed by the manual:
<?php
// Initialize the session.
// If you are using session_name("something"), don't forget it now!
session_start();
// Unset all of the session variables.
$_SESSION = array();
// If it's desired to kill the session, also delete the session cookie.
// Note: This will destroy the session, and not just the session data!
if (ini_get("session.use_cookies")) {
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]
);
}
// Finally, destroy the session.
session_destroy();
?>
The only thing that remains is header('Location: index.php');

Answer 3

Submit a parameter in your link like index.php?logout=true, check for that parameter in your index.php and if set, delete cookies:
http://php.net/manual/de/function.setcookie.php
If you set the "lifetime" (expire) of a cookie to something in the past (or leave it out completely), it will be removed on the next pageload (do a Google search for "php delete cookie" to find help). Force a page reload, if needed.
You may also want to destroy the user's session.

Answer 4

Here's your HTML link
Log-out
And your PHP to handle to logging out
if(isset($_GET['logout'])) {
// clear the session variable, display logged out message
}

Answer 5

Use link like that:
<?php
echo( 'Log-out' );
?>
And index.php is:
<?php
$link = $_GET["link"];
if($link == "logout")
{
session_destroy();
}
?>

Answer 6

In the navigation menu:
Log out
In logout.php:
<?php
// kill the session
header('Location: index.php');
exit();
For killing the session, see the example at session_destroy() in the PHP manual.

Answer 7

Logout Link:
Log Out
logout.php
<?php
session_start();
session_destroy();
?>