Horde_Group_Base::_checkExistsCache PHP Method

    protected function _checkExistsCache($gid)
    {
        // Use strlen() to catch "0" and "1".
        try {
            if (strlen($exists = $this->_cache->get($this->_sig('exists_' . $gid), 0))) {
                return (bool) $exists;
            }
        } catch (Horde_Cache_Exception $e) {
        }
    }