Viber 机器人发送重复消息

Question

我创建了一个带有按钮和开关的 viber 机器人。当我选择汽车品牌和型号时，一切正常，但机器人会从 @media only screen and (max-width: 600px) { .fa-barcode { right: 20px !important; } #cameras-selection { position: absolute; pointer-events: visible; margin: 10px; } #close-camera-container { position: absolute; right: 0; margin: 10px; pointer-events: visible; } } #container { display: none; pointer-events: none; width: 320px; height: 240px; } .test { width: 100%; } 发送额外的消息。这是它的外观：Screenshot of chat with this bug。 我没有添加带有第一个按钮（带有品牌）的代码，因为它们一切正常 按钮：

->setText('Model')

用答案切换：

->onText('||', function ($event) use ($bot, $botSender, $log) {

$caseNumber = $event->getMessage()->getText();
            $log->info('onText demo handler #' . $caseNumber);
            $client = $bot->getClient();
            $receiverId = $event->getSender()->getId();
            switch ($caseNumber) {
                case 0:
                     $client->sendMessage(
                        (new \Viber\Api\Message\Text())
                            ->setSender($botSender)
                            ->setReceiver($receiverId)
                            ->setText('Model')
                            ->setKeyboard(
                                (new \Viber\Api\Keyboard())
                                    ->setButtons([
                                        (new \Viber\Api\Keyboard\Button())
                                            ->setBgColor('#ffffff')
                                            ->setTextSize('small')
                                            ->setTextHAlign('center')
                                            ->setActionType('reply')
                                            ->setActionBody('Megane')
                                            ->setText('Megane'),
                                                                                    (new \Viber\Api\Keyboard\Button())
                                            ->setBgColor('#ffffff')
                                            ->setTextSize('small')
                                            ->setTextHAlign('center')
                                            ->setActionType('reply')
                                            ->setActionBody('Zoe')
                                            ->setText('Zoe'),
                                                                                    (new \Viber\Api\Keyboard\Button())
                                            ->setBgColor('#ffffff')
                                            ->setTextSize('small')
                                            ->setTextHAlign('center')
                                            ->setActionType('reply')
                                            ->setActionBody('Scenic')
                                            ->setText('Scenic'),
                                                                                    (new \Viber\Api\Keyboard\Button())
                                            ->setBgColor('#ffffff')
                                            ->setTextSize('small')
                                            ->setTextHAlign('center')
                                            ->setActionType('reply')
                                            ->setActionBody('Renault Grand')
                                            ->setText('Grand'),
                                                                                                                                (new \Viber\Api\Keyboard\Button())
                                            ->setBgColor('#ffffff')
                                            ->setTextSize('small')
                                            ->setTextHAlign('center')
                                            ->setActionType('reply')
                                            ->setActionBody('Kangoo')
                                            ->setText('Kangoo'),
                                                                                                                                (new \Viber\Api\Keyboard\Button())
                                            ->setBgColor('#ffffff')
                                            ->setTextSize('small')
                                            ->setTextHAlign('center')
                                            ->setActionType('reply')
                                            ->setActionBody('Talisman')
                                            ->setText('Talisman'),
                                    ])
                            )
                    );
            }

如何删除多余的 $caseNumber1 = preg_replace('||', '', $event->getMessage()->getText()); switch ($caseNumber1) { case 'Megane': $client->sendMessage( (new \Viber\Api\Message\Text()) ->setSender($botSender) ->setReceiver($receiverId) ->setText('Renault Megane'), $buttons ); } 消息？