public function __construct($namespace = 'izzum', $session_id = null) { if (session_status() === PHP_SESSION_NONE) { if ($session_id !== null) { session_id($session_id); } session_start(); } $this->namespace = $namespace; if (!isset($_SESSION)) { $_SESSION = array(); } if (!isset($_SESSION[$this->namespace])) { $_SESSION[$this->namespace] = array(); } }