Inpsyde\MultilingualPress\Module\AlternativeLanguageTitleInAdminBar\AlternativeLanguageTitles::update PHP Метод

    public function update()
    {
        $site_id = isset($_REQUEST['id']) ? (int) $_REQUEST['id'] : get_current_blog_id();
        if (1 > $site_id) {
            return false;
        }
        $titles = wp_cache_get($this->cache_key, $this->cache_group);
        if (!isset($titles[$site_id])) {
            return false;
        }
        unset($titles[$site_id]);
        wp_cache_set($this->cache_key, $titles, $this->cache_group);
        return true;
    }