Tag {php} throws an error Malformed tag contents in ... #376

            {php
                    $accessCssClass = 'btn-danger';
                    $accessText = '';

                    if ( $last_access ) {
                        $now = new \DateTime();
                        $to_time = $last_access->getTimestamp();
                        $from_time = $now->getTimestamp();
                        $minute = round(abs($to_time - $from_time) / 60, 2);

                        if ( $minute <= 20 ) {
                            $accessCssClass = 'btn-success';
                            $accessText = $presenter->translate("device.online", "Online");
                        }
                        else {
                            $accessCssClass = 'btn-warning';
                            $accessText = $presenter->translate("device.offline", "Offline");
                        }
                    }
                    else {
                        $accessText = $presenter->translate("device.never_connected", "Never connected");
                    }
            }
            <span class="btn btn-xs {$accessCssClass}">{$accessText}</span>