    public function save()
    {
        session_write_close();

        if (!$this->saveHandler->isWrapper() && !$this->saveHandler->isSessionHandlerInterface()) {
            // This condition matches only PHP 5.3 with internal save handlers
            $this->saveHandler->setActive(false);
        }

        $this->closed = true;
        $this->started = false;
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.