在php中使用gmail api发送带有附件的邮件答案

【问题标题】：sending mail with attachment using gmail api in php在php中使用gmail api发送带有附件的邮件
【发布时间】：2018-08-28 22:10:48
【问题描述】：

当我尝试使用 php.text 发送邮件时，也可以将其作为名为 noname.html 的附件发送。请为我提供解决方案。我用这个库发送电子邮件https://github.com/google/google-api-php-client。我的代码是这样的。任何帮助将不胜感激。

$client->setAccessToken($_SESSION['gmail_access_token']);            
    $objGMail = new Google_Service_Gmail($client);

   $strMailContent = 'This is a test mail which is <b>sent via</b> using Gmail API client library.<br/><br/><br/>Thanks,<br/><b>Premjith K.K..</b>';
   // $strMailTextVersion = strip_tags($strMailContent, '');

    $strRawMessage = "";
    $boundary = uniqid(rand(), true);
    $subjectCharset = $charset = 'utf-8';
    $strToMailName = 'NAME';
    $strToMail = 'name@gmail.com';
    $strSesFromName = 'Premjith GMAIL API';
    $strSesFromEmail = 'premji341800@gmail.com';
    $strSubject = 'Test mail using GMail API - with attachment - ' . date('M d, Y h:i:s A');

    $strRawMessage .= 'To: ' .$strToMailName . " <" . $strToMail . ">" . "\r\n";
    $strRawMessage .= 'From: '.$strSesFromName . " <" . $strSesFromEmail . ">" . "\r\n";

    $strRawMessage .= 'Subject: =?' . $subjectCharset . '?B?' . base64_encode($strSubject) . "?=\r\n";
    $strRawMessage .= 'MIME-Version: 1.0' . "\r\n";
    $strRawMessage .= 'Content-type: Multipart/Mixed; boundary="' . $boundary . '"' . "\r\n";

    $filePath = 'abc.pdf';
    $finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
    $mimeType = finfo_file($finfo, $filePath);
    $fileName = 'abc.pdf';
    $fileData = base64_encode(file_get_contents($filePath));

    $strRawMessage .= "\r\n--{$boundary}\r\n";
    $strRawMessage .= 'Content-Type: '. $mimeType .'; name="'. $fileName .'";' . "\r\n";            
    $strRawMessage .= 'Content-ID: <' . $strSesFromEmail . '>' . "\r\n";            
    $strRawMessage .= 'Content-Description: ' . $fileName . ';' . "\r\n";
    $strRawMessage .= 'Content-Disposition: attachment; filename="' . $fileName . '"; size=' . filesize($filePath). ';' . "\r\n";
    $strRawMessage .= 'Content-Transfer-Encoding: base64' . "\r\n\r\n";
    $strRawMessage .= chunk_split(base64_encode(file_get_contents($filePath)), 76, "\n") . "\r\n";
    $strRawMessage .= '--' . $boundary . "\r\n";

    $strRawMessage .= "\r\n--{$boundary}\r\n";
    $strRawMessage .= 'Content-Type: text/plain; charset=' . $charset . "\r\n";
    $strRawMessage .= 'Content-Transfer-Encoding: 7bit' . "\r\n\r\n";
   // $strRawMessage .= $strMailTextVersion . "\r\n";

    $strRawMessage .= "--{$boundary}\r\n";
    $strRawMessage .= 'Content-Type: text/html; charset=' . $charset . "\r\n";
    $strRawMessage .= 'Content-Transfer-Encoding: quoted-printable' . "\r\n\r\n";
    $strRawMessage .= $strMailContent . "\r\n";

    //Send Mails
    //Prepare the message in message/rfc822
    try {
        // The message needs to be encoded in Base64URL
        $mime = rtrim(strtr(base64_encode($strRawMessage), '+/', '-_'), '=');
        $msg = new Google_Service_Gmail_Message();
        $msg->setRaw($mime);
        $objSentMsg = $objGMail->users_messages->send("me", $msg);

        print('Message sent object');
       // print($objSentMsg);

    } catch (Exception $e) {
        print($e->getMessage());
        unset($_SESSION['access_token']);
    }

当我更改代码行时 $strRawMessage .= 'Content-type: Multipart/Mixed; boundary="' . $boundary . '"' . "\r\n"; 到 $strRawMessage .= 'Content-type: Multipart/Alternative; boundary="' . $boundary . '"' . "\r\n"; 邮件仅以 html 格式发送，不带附件。请帮帮我

【问题讨论】：

你为什么不用phpmailer？
Codeiginter 已内置电子邮件库
需要Gmail身份验证，并且需要使用登录的员工帐户发送邮件。
我认为第一个代码是正确的，Content-type: Multipart/Mixed。您也可以查看教程send mail through Gmail API 和相关的SO post。希望这会有所帮助。
@Mr.Rebot，我提到了您提供的两个链接，它可以在我的代码中看到。但邮件发送正文也作为名称为 noname.html 的附件。

标签： php codeigniter gmail-api

【解决方案1】：

我已经像这样更改了我的代码，它对我来说效果很好。谢谢大家的支持。

$client->setAccessToken($_SESSION['gmail_access_token']);            
    $objGMail = new Google_Service_Gmail($client);

   $strMailContent = 'This is a test mail which is <b>sent via</b> using Gmail API client library.<br/><br/><br/>Thanks,<br/><b>Premjith K.K..</b>';
   // $strMailTextVersion = strip_tags($strMailContent, '');

    $strRawMessage = "";
    $boundary = uniqid(rand(), true);
    $subjectCharset = $charset = 'utf-8';
    $strToMailName = 'NAME';
    $strToMail = 'name@gmail.com';
    $strSesFromName = 'Premjith GMAIL API';
    $strSesFromEmail = 'premji341800@gmail.com';
    $strSubject = 'Test mail using GMail API - with attachment - ' . date('M d, Y h:i:s A');

    $strRawMessage .= 'To: ' .$strToMailName . " <" . $strToMail . ">" . "\r\n";
    $strRawMessage .= 'From: '.$strSesFromName . " <" . $strSesFromEmail . ">" . "\r\n";

    $strRawMessage .= 'Subject: =?' . $subjectCharset . '?B?' . base64_encode($strSubject) . "?=\r\n";
    $strRawMessage .= 'MIME-Version: 1.0' . "\r\n";
    $strRawMessage .= 'Content-type: Multipart/Mixed; boundary="' . $boundary . '"' . "\r\n";

    $filePath = 'abc.pdf';
    $finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
    $mimeType = finfo_file($finfo, $filePath);
    $fileName = 'abc.pdf';
    $fileData = base64_encode(file_get_contents($filePath));

    $strRawMessage .= "\r\n--{$boundary}\r\n";
    $strRawMessage .= 'Content-Type: '. $mimeType .'; name="'. $fileName .'";' . "\r\n";            
    $strRawMessage .= 'Content-ID: <' . $strSesFromEmail . '>' . "\r\n";            
    $strRawMessage .= 'Content-Description: ' . $fileName . ';' . "\r\n";
    $strRawMessage .= 'Content-Disposition: attachment; filename="' . $fileName . '"; size=' . filesize($filePath). ';' . "\r\n";
    $strRawMessage .= 'Content-Transfer-Encoding: base64' . "\r\n\r\n";
    $strRawMessage .= chunk_split(base64_encode(file_get_contents($filePath)), 76, "\n") . "\r\n";
    $strRawMessage .= "--{$boundary}\r\n";
    $strRawMessage .= 'Content-Type: text/html; charset=' . $charset . "\r\n";
    $strRawMessage .= 'Content-Transfer-Encoding: quoted-printable' . "\r\n\r\n";
    $strRawMessage .= $strMailContent . "\r\n";

    //Send Mails
    //Prepare the message in message/rfc822
    try {
        // The message needs to be encoded in Base64URL
        $mime = rtrim(strtr(base64_encode($strRawMessage), '+/', '-_'), '=');
        $msg = new Google_Service_Gmail_Message();
        $msg->setRaw($mime);
        $objSentMsg = $objGMail->users_messages->send("me", $msg);

        print('Message sent object');
       // print($objSentMsg);

    } catch (Exception $e) {
        print($e->getMessage());
        unset($_SESSION['access_token']);
    }

【讨论】：

它对我来说工作正常，但现在我作为电子邮件正文输入的每个文本都被转换为中文字符。有人有解决办法吗？
如何添加多个收件人和多个cc，bcc，以及多个附件？

【解决方案2】：

以上代码适用于单个附件。

如果您想发送多个附件，只需遵循此代码即可发送带有多个附件的邮件正文部分。

$client->setAccessToken($_SESSION['gmail_access_token']);            
$objGMail = new Google_Service_Gmail($client);
$strMailContent = 'This is a test mail which is <b>sent via</b> using Gmail API client library.<br/><br/><br/>Thanks,<br/><b>Premjith K.K..</b>';
$strRawMessage = "";
$boundary = uniqid(rand(), true);
$subjectCharset = $charset = 'utf-8';
$strToMailName = 'NAME';
$strToMail = 'name@gmail.com';
$strSesFromName = 'Premjith GMAIL API';
$strSesFromEmail = 'premji341800@gmail.com';
$strSubject = 'Test mail using GMail API - with attachment - ' . date('M d, Y h:i:s A');

$strRawMessage .= 'To: ' .$strToMailName . " <" . $strToMail . ">" . "\r\n";
$strRawMessage .= 'From: '.$strSesFromName . " <" . $strSesFromEmail . ">" . "\r\n";

$strRawMessage .= 'Subject: =?' . $subjectCharset . '?B?' . base64_encode($strSubject) . "?=\r\n";
$strRawMessage .= 'MIME-Version: 1.0' . "\r\n";
$strRawMessage .= 'Content-type: Multipart/Mixed; boundary="' . $boundary . '"' . "\r\n";
$strRawMessage .= "\r\n--{$boundary}\r\n";
$strRawMessage .= 'Content-Type: text/html; charset=' . $charset . "\r\n";
$strRawMessage .= "Content-Transfer-Encoding: base64" . "\r\n\r\n";
$strRawMessage .= $sentMailData->body . "\r\n";
$strRawMessage .= "--{$boundary}\r\n";

foreach ($files as $key => $filePath) {
    if($filePath!=""){
        $array = explode('/', $filePath);
        $finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
        $mimeType = finfo_file($finfo, $filePath);
        $fileName = $array[sizeof($array)-1];
        $fileData = base64_encode(file_get_contents($filePath));

        $strRawMessage .= "\r\n--{$boundary}\r\n";
        $strRawMessage .= 'Content-Type: '. $mimeType .'; name="'. $fileName .'";' . "\r\n";            
        $strRawMessage .= 'Content-ID: <' . $sentMailData->email. '>' . "\r\n";            
        $strRawMessage .= 'Content-Description: ' . $fileName . ';' . "\r\n";
        $strRawMessage .= 'Content-Disposition: attachment; filename="' . $fileName . '"; size=' . filesize($filePath). ';' . "\r\n";
        $strRawMessage .= 'Content-Transfer-Encoding: base64' . "\r\n\r\n";
        $strRawMessage .= chunk_split(base64_encode(file_get_contents($filePath)), 76, "\n") . "\r\n";
        $strRawMessage .= "--{$boundary}\r\n";
    }
}

//Send Mails
//Prepare the message in message/rfc822
try {
    // The message needs to be encoded in Base64URL
    $mime = rtrim(strtr(base64_encode($strRawMessage), '+/', '-_'), '=');
    $msg = new Google_Service_Gmail_Message();
    $msg->setRaw($mime);
    $objSentMsg = $service->users_messages->send("me", $msg);
    echo '<pre>'; print_r($objSentMsg); echo '</pre>';
    if($sentMailData->attachments!=""){
        $files = explode(',', $sentMailData->attachments);
        foreach ($files as $key => $filePath) {
            if($filePath!=""){
                @unlink($filePath);
            }
        }
    }
    echo '<pre>'; print_r($sentMailData); echo '</pre>';
} catch (Exception $e) {
    print($e->getMessage());
}

【讨论】：