session_destroy
session_destroy
Destroys all data registered to a session
bool **session_destroy**
destroys all of the data associated
with the current session. It does not unset any of the global variables
associated with the session, or unset the session cookie.
To use the session variables again, has
to be called.
session_destroy``session_start
Opmerking: > You do not have to call from usual code. Cleanup $_SESSION array rather than destroying session data.
session_destroy
In order to kill the session altogether, 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.
may be used for that.
setcookie
When is enabled. You do not have to remove obsolete session ID cookie because session module will not accept session ID cookie when there is no data associated to the session ID and set new session ID cookie. Enabling is recommended for all sites. session.use_strict_modesession.use_strict_mode
Waarschuwing: > Immediate session deletion may cause unwanted results. When there is concurrent requests, other connections may see sudden session data loss. e.g. Requests from JavaScript and/or requests from URL links.
Although current session module does not accept empty session ID cookie, but immediate session deletion may result in empty session ID cookie due to client(browser) side race condition. This will result that the client creates many session ID needlessly.
To avoid these, you must set deletion time-stamp to $_SESSION and reject access while later. Or make sure your application does not have concurrent requests. This applies to also.
session_regenerate_id
return.success
**Voorbeeld: Destroying a session with **
<?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();
?>
session.use_strict_modesession_reset``session_regenerate_id``unset``setcookie