Thursday, February 7, 2013

How to kill and destroy php session completely


To kill the session altogether, like to log the user out, the session id must also be unset. If a cookie is used to propagate the session id (default behavior), then the session cookie must be deleted. setcookie() may be used for that.
PHP CODE :
// Initialize user session.
// If you are using session_name("demo_value"), don't forget it now!
session_start();

// Unset all 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();
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