$session API variable / Session class

Maintains sessions in ProcessWire, authentication, persistent variables, notices and redirects.

Click any linked item for full usage details and examples. Hookable methods are indicated with the icon. In addition to those shown below, the Session class also inherits all the methods and properties of: Wire.

Redirects

Name	Return	Summary
$session->location() $session->location(string $url) $session->location(string $url, int $status = 302)	(nothing)	Perform a temporary redirect
$session->redirect() $session->redirect(string $url) $session->redirect(string $url, $status = 301)	(nothing)	Redirect this session to another URL.

Get

Name	Return	Summary
$session->get() $session->get($key) $session->get($key, string $_key = null)	`mixed`	Get a session variable
$session->getAll() $session->getAll() $session->getAll($ns = null)	`array`	Get all session variables in an associative array
$session->getAllFor() $session->getAllFor($ns) $session->getAllFor($ns)	`array`	Get all session variables for given namespace and return associative array
$session->getFor() $session->getFor($ns, string $key) $session->getFor($ns, string $key)	`mixed`	Get a session variable within a given namespace
$session->getVal() $session->getVal(string $key) $session->getVal(string $key, mixed $val = null)	`mixed`	Get a session variable or return $val argument if session value not present
$session->getValFor() $session->getValFor($ns, string $key) $session->getValFor($ns, string $key, mixed $val = null)	`mixed`	Get a session variable or return $val argument if session value not present

Set

Name	Return	Summary
$session->set() $session->set($key, $value) $session->set($key, $value, mixed $_value = null)	`$this`	Set a session variable
$session->setFor() $session->setFor($ns, string $key, mixed $value) $session->setFor($ns, string $key, mixed $value)	`$this`	Set a session variable within a given namespace

Remove

Name	Return	Summary
$session->remove() $session->remove($key) $session->remove($key, $_key = null)	`$this`	Unset a session variable
$session->removeAllFor() $session->removeAllFor($ns) $session->removeAllFor($ns)	`$this`	Remove all session variables in given namespace
$session->removeFor() $session->removeFor($ns, string $key) $session->removeFor($ns, string $key)	`$this`	Unset a session variable within a namespace

Info

Name	Return	Summary
$session->getIP() $session->getIP() $session->getIP(bool $int = false, $useClient = false)	`string` `int`	Get the IP address of the current user
$session->hasCookie() $session->hasCookie() $session->hasCookie(bool $checkLogin = false)	`bool`	Are session cookie(s) present?
$session->hasLoginCookie() $session->hasLoginCookie() $session->hasLoginCookie()	`bool`	Is a session login cookie present?

Notices

Name	Return	Summary
$session->error() $session->error(string $text) $session->error(string $text, int $flags = 0)	`$this`	Queue an error to appear on the next pageview
$session->message() $session->message(string $text) $session->message(string $text, int $flags = 0)	`$this`	Queue a message to appear on the next pageview
$session->removeNotices() $session->removeNotices() $session->removeNotices()	(nothing)	Remove queued notices
$session->warning() $session->warning(string $text) $session->warning(string $text, int $flags = 0)	`$this`	Queue a warning to appear the next pageview

Authentication

Name	Return	Summary
$session->forceLogin() $session->forceLogin($user) $session->forceLogin($user)	`User` `null`	Login a user without requiring a password
$session->login() $session->login($name, string $pass) $session->login($name, string $pass, bool $force = false)	`User` `null`	Login a user with the given name and password
$session->logout() $session->logout() $session->logout(bool $startNew = true)	`$this`	Logout the current user, and clear all session variables

Advanced

Name	Return	Summary
$session->CSRF() $session->CSRF() $session->CSRF()	`SessionCSRF`	Return an instance of ProcessWire’s CSRF object, which provides an API for cross site request forgery protection. Can also be used as property: $session->CSRF
$session->getHistory() $session->getHistory() $session->getHistory()	`array`	Get the session history (if enabled)

For hooks

These methods are only useful for hooking and should not be called directly.

Name	Return	Summary
$session->allowLogin() $session->allowLogin(string $name) $session->allowLogin(string $name, $user = null)	`bool`	Allow the user $name to login? Provided for use by hooks.
$session->allowLoginAttempt() $session->allowLoginAttempt(string $name) $session->allowLoginAttempt(string $name)	`bool`	Allow login attempt for given name at all?
$session->authenticate() $session->authenticate(User $user, string $pass) $session->authenticate(User $user, string $pass)	`bool`	Return true or false whether the user authenticated with the supplied password
$session->init() $session->init() $session->init()	(nothing)	Start the session
$session->isValidSession() $session->isValidSession(int $userID) $session->isValidSession(int $userID)	`bool`	Checks if the session is valid based on a challenge cookie and fingerprint
$session->loginFailure() $session->loginFailure(string $name, string $reason) $session->loginFailure(string $name, string $reason)	(nothing)	Login failure method for hooks
$session->loginSuccess() $session->loginSuccess(User $user) $session->loginSuccess(User $user)	(nothing)	Login success method for hooks
$session->logoutSuccess() $session->logoutSuccess(User $user) $session->logoutSuccess(User $user)	(nothing)	Logout success method for hooks

Common

Name	Return	Summary
$session->close() $session->close() $session->close()	(nothing)	Manually close the session, before program execution is done

Additional methods and properties

In addition to the methods and properties above, Session also inherits the methods and properties of these classes:

Wire

API reference based on ProcessWire core version 3.0.236