在heroku上部署php消息传递应用，并使用twilio发送消息 - Deploying php messaging app on heroku and using twilio to send messages

Deploying php messaging app on heroku and using twilio to send messages

我正在尝试部署一个用PHP编写的短信应用程序，我正在Heroku上部署它，并使用Twilio发送消息。当有人在我的Twilio号码上发送消息时，这个应用程序会对该消息发送适当的回复。我在这个应用程序中面临着一个开关语句的问题。我是PHP编码的新手，我无法做到这一点。我在下面粘贴我的代码。请帮我修一下。提前谢谢你。

<?php
    session_start();
    header("content-type: text/xml");
    switch ($answer) {
        case 'headache' : {
            print('OTC Crocin may help!');
            break;
        case 'stomachache' : {
            print('OTC Tylenol may help!');
            break;
        case 'cough' : {
            print('OTC Robitussin Cough may help!');
            break;
        case 'cold' : {
            print('OTC Aspirin may help!');
            break;  
        case 'vomiting' : {
            print('OTC Pepto-Bismol may help!');
            break;
        case 'headache doctor' : {
            print('Dr. Lorem Ipsum - Here is the address! Call at +1 xxx xxx xxxx');
            break;
        case 'stomachache doctor' : {
            print('Dr. Lorem Ipsum - Here is the address! Call at +1 xxx xxx xxxx');
            break;
        case 'cough doctor' : {
            print('Dr. Lorem Ipsum - Here is the address! Call at +1 xxx xxx xxxx');
            break;
        case 'cold doctor' : {
            print('Dr. Lorem Ipsum - Here is the address! Call at +1 xxx xxx xxxx');
            break;
        case 'vomiting doctor' : {
            print('Dr. Lorem Ipsum - Here is the address! Call at +1 xxx xxx xxxx');
            break;
    }


    $from   = $_POST['From'];
    $answer = $_POST['Body'];
    $reply  = array();

    echo "<?xml version='"1.0'" encoding='"UTF-8'"?>'n";
?>
<Response>
    <Sms>
            <?php
                if(is_array($reply)){
                    foreach($reply as $key => $value){
                        echo $value;
                    }
                }
                else{
                    echo $reply;
                }
            ?>
    </Sms>
</Response>

这里是Twilio开发者布道者。

您正在响应传入的SMS消息，但是您正在使用<Sms> TwiML动词。<Sms>仅用于语音通话时发送短信

相反，您要使用<Message> TwiML动词，用于回复SMS消息。因此，代码的最后一部分应该看起来像:

<Response>
    <Message>
            <?php
                if(is_array($reply)){
                    foreach($reply as $key => $value){
                        echo $value;
                    }
                }
                else{
                    echo $reply;
                }
            ?>
    </Message>
</Response>