Php 如何通过Mailgun发送Twilio短信附件？

背景：我使用自己的web应用程序通过Twilio发送和接收短信。我将图像附件插入邮件正文，但希望将其他附件类型（例如PDF）发送到我的邮件帐户

答：见下文

请注意那些认为我不应该问和回答我自己问题的下层选民：

请花点时间阅读我在写我的文章之前所做的。截至今天，它的内容是

我能回答我自己的问题吗

对!！堆栈交换一直明确鼓励用户回答问题 他们自己的问题。如果你有一个你已经知道答案的问题 回答，你想公开记录这些知识吗 包括你自己在内的其他人可以在以后找到它，这是完美的 可以在Stack Exchange站点上提问并回答您自己的问题

为了鼓励人们这样做，在页面底部有一个复选框 每次你问问题的时候都会翻页。如果你有超过15个 如果您已经知道答案，请单击下面的复选框 在提问页面底部回答您自己的问题。 输入答案，然后同时提交问题和答案

function emailAttachments() {
    // Get global variables for Twilio and Mailgun
    global $twilio_source, $twilio_sid, $twilio_token;
    global $mailTo, $mailFrom, $mailgun_api_key, $mailgun_url, $mailgun_domain;

    // Step through all attachments
    $numMedia = $_REQUEST["NumMedia"];
    if ($numMedia > 0) {
        // Note the recipient's number (in case we need to notify SMS sender of a problem)
        $to = $_REQUEST["To"];

        // Use the sender's number and the time for forming a filename
        $from = $_REQUEST["From"];
        $numericFrom = preg_replace("/[^\d]/", "", $from);
        $timestamp = round(microtime(true));

        // Format the sender's phone number for use in the Subject and Body
        $prefix = substr($from, 1, 1);
        $areaCode = substr($from, 2, 3);
        $exchange = substr($from, 5, 3);
        $line = substr($from, 8);
        $formattedFrom = "{$prefix} ({$areaCode}) {$exchange}-{$line}";

        // Include the attachment count in the Subject (plural if appropriate) 
        $description = $numMedia . " " . ($numMedia == 1 ? "attachment" : "attachments");
        $subject = "Forwarding {$description} from {$formattedFrom}.";

        // Include any SMS Body text in the email's Body
        $body = $_REQUEST["Body"];
        $message = "<p>SMS from {$formattedFrom}</p><p style='margin-left:20px; margin-right:20px; font-family:monospace; color:navy;'>{$body}</p>";

        // Specify the Mailgun parameters (not including the attachments)
        $mailgunParams = array(
            "from" => $mailFrom,
            "to" => $mailTo,
            "subject" => $subject,
            "html" => $message
        );

        // Set a directory and start fetching from Twilio
        $directory = "downloads/";
        for ($i = 0; $i < $numMedia; $i++) {
            // Get the content type that Twilio sent and combine it with the sender's number, the timestamp, file number, and proper extension
            $contentType = $_REQUEST["MediaContentType" . $i];
            $filename = $numericFrom . "." . $timestamp . "." . ($i + 1) . "." . substr($contentType, strrpos($contentType, "/") + 1);

            // Open a file in the download directory
            $file = fopen($directory . $filename, "w+");

            // Fetch the file content with cURL
            $ch = curl_init();
            $options = array(
                CURLOPT_HTTPGET => true,
                CURLOPT_URL => $_REQUEST["MediaUrl" . $i],
                CURLOPT_FOLLOWLOCATION => true,
                CURLOPT_HTTPAUTH => CURLAUTH_BASIC,
                CURLOPT_USERPWD => "$twilio_sid:$twilio_token",
                CURLOPT_FILE => $file
            );
            curl_setopt_array($ch, $options);
            curl_exec($ch);

            // Close connection
            curl_close($ch);

            // Add the file information to the Mailgun array
            $mailgunParams["attachment[$i]"] = curl_file_create($directory . $filename);
        }  

        // Establish cURL connection to Mailgun
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
        curl_setopt($ch, CURLOPT_USERPWD, "api:" . $mailgun_api_key);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_URL, "https://api.mailgun.net/v3/" . $mailgun_domain . "/messages");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $mailgunParams);

        // Parse the result 
        $response = curl_exec($ch);
        $response = strtolower(str_replace("\n", "", trim($response)));
        $result=  json_decode($response, true);
        $status = explode(".", $result["message"]);

        // If the message was not queued, trigger function to notify the sender and post error to log
        if ($status[0] !== "queued") {
            notifySender($from, $to);
            error_log("Message not sent because of " . print_r($status, true));
        }

        // Close connection
        curl_close($ch);

        // Step through the attachment list one more time, and delete the files from the server
        for ($i = 0; $i < $numMedia; $i++) {
            $filename = $numericFrom . "." . $timestamp . "." . ($i + 1) . "." . substr($contentType, strrpos($contentType, "/") + 1);
            unlink($directory . $filename);
        }           
    }
}   

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有道理，对吧？在这种情况下，这篇文章提供了关于两种非常流行的服务的信息，即Twilio和Mailgun。如果一个沮丧的开发人员撞到了墙，为什么他们要问一个问题并等待答案，而不是轻易找到答案？99%的情况下，我在StackExchange上找到答案而不必发帖。

在浏览媒体附件时，我会查找任何不是.jpg、.gif或.png的内容

    // Look for attachments
    $numMedia = $_REQUEST["NumMedia"];
    if ($numMedia > 0) {
        $attachments = "\n\n";

        // Step through list
        for ($i = 0; $i < $numMedia; $i++) {
            // Get the attachment's URL on Twilio
            $attachment = $_REQUEST["MediaUrl" . $i];

            // If not .jpg, .gif, or .png
            if (!preg_match('~(image/jpeg|image/gif|image/png)~', $_REQUEST["MediaContentType" . $i])) {
                // Inform user in message body
                $attachments .= "[A non-image file was sent.]\n\n";

                // Note the presence of a non-image attachment
                $nonImageAttachment = true;
            }

            // If image, add a link and image tag to the message body
            else {
                $attachments .= "<a href='" . $attachment . "' target='_blank'><img src='" . $attachment . "' target='_blank'></a>\n\n";
            }
        }

        // If there are any non-image attachments, trigger the emailAttachment function
        if ($nonImageAttachment) {
            emailAttachments();
        }
    }

如果Mailgun未将邮件排队，请通知发件人通过电子邮件发送附件

函数notifySender$respondTo，$respondingFrom{ //获取通过Twilio发送的参数以及回调URL 全局$twilio_sid，$twilio_令牌； 全球$website\uURL； //获取您希望发件人用于通过电子邮件而不是SMS发送附件的电子邮件地址 全球$mailToAlternative； //设置希望Twilio返回的任何参数，例如，监视性能的起始时间 $timestamp=roundmicrotimetrue； $callback=$website_URL。？origined=.$timestamp； //创建Twilio阵列 $params=数组 From=>$respondingFrom，

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Body=>如果这里有问题的话，那就太好了。你所做的只是发布你拥有的东西，而没有给任何人一个发布解决方案的机会。