public function SessionManager::start in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Session/SessionManager.php \Drupal\Core\Session\SessionManager::start()

File

core/lib/Drupal/Core/Session/SessionManager.php, line 97

Class

SessionManager

Manages user sessions.

Namespace

Drupal\Core\Session

Code

public function start() {
  if (($this->started || $this->startedLazy) && !$this->closed) {
    return $this->started;
  }
  $request = $this->requestStack
    ->getCurrentRequest();
  $this
    ->setOptions($this->sessionConfiguration
    ->getOptions($request));
  if ($this->sessionConfiguration
    ->hasSession($request)) {

    // If a session cookie exists, initialize the session. Otherwise the
    // session is only started on demand in save(), making
    // anonymous users not use a session cookie unless something is stored in
    // $_SESSION. This allows HTTP proxies to cache anonymous pageviews.
    $result = $this
      ->startNow();
  }
  if (empty($result)) {

    // Initialize the session global and attach the Symfony session bags.
    $_SESSION = [];
    $this
      ->loadSession();

    // NativeSessionStorage::loadSession() sets started to TRUE, reset it to
    // FALSE here.
    $this->started = FALSE;
    $this->startedLazy = TRUE;
    $result = FALSE;
  }
  return $result;
}