也许这有点超出最初的问题，但至少在我的情况下，“测试电子邮件”已经发展到定期“从”各个帐户发送自动欢迎电子邮件。虽然我在这里找到了很多有用的东西，但我不得不从各种来源拼凑起来。
为了帮助其他人驾驭这个过程，这里是我提出的一个提炼版本。
关于以下代码的几点说明：
- 这假设您已经跳过了为 Google 服务帐户创建和下载 JSON 的过程（在开发人员仪表板的凭据下，它位于底部。）
- 为清楚起见，我将您需要在“用您自己的数据替换”部分中设置的所有位进行了分组。
- that
mein the send()method 是一个关键字，意思是“使用当前帐户发送此电子邮件”。
// This block is only needed if you're working outside the global namespace
use \Google_Client as Google_Client;
use \Google_Service_Gmail as Google_Service_Gmail;
use \Google_Service_Gmail_Message as Google_Service_Gmail_Message;
// Prep things for PHPMailer
use PHPMailer\PHPMailer\Exception;
use PHPMailer\PHPMailer\PHPMailer;
// Grab the needed files
require_once 'path/to/google-api/vendor/autoload.php';
require_once 'path/to/php-mailer/Exception.php';
require_once 'path/to/php-mailer/PHPMailer.php';
// Replace this with your own data
$pathToServiceAccountCredentialsJSON = "/path/to/service/account/credentials.json";
$emailUser = "sender@yourdomain.com"; // the user who is "sending" the email...
$emailUserName = "Sending User's Name"; // ... and their name
$emailSubjectLine = "My Email's Subject Line";
$recipientEmail = "recipient@somdomain.com";
$recipientName = "Recipient's Name";
$bodyHTML = "<p>Paragraph one.</p><p>Paragraph two!</p>";
$bodyText = "Paragraph one.\n\nParagraph two!";
// Set up credentials and client
putenv("GOOGLE_APPLICATION_CREDENTIALS={$pathToServiceAccountCredentialsJSON}");
$client = new Google_Client();
$client->useApplicationDefaultCredentials();
// We're only sending, so this works fine
$client->addScope(Google_Service_Gmail::GMAIL_SEND);
// Set the user we're going to pretend to be (Subject is confusing here as an email also has a "Subject"
$client->setSubject($emailUser);
// Set up the service
$mailService = new Google_Service_Gmail($client);
// We'll use PHPMailer to build the raw email (since Google's API doesn't do that) so prep it
$mailBuilder = new PHPMailer();
$mailBuilder->CharSet = "UTF-8";
$mailBuilder->Encoding = "base64";
// Not set up the email you want to send
$mailBuilder->Subject = $emailSubjectLine;
$mailBuilder->From = $emailUser;
$mailBuilder->FromName = $emailUserName;
try {
$mailBuilder->addAddress($recipientEmail, $recipientName);
} catch (Exception $e) {
// Handle any problems adding the email address here
}
// Add additional recipients, CC, BCC, ReplyTo, if desired
// Then add the main body of the email...
$mailBuilder->isHTML(true);
$mailBuilder->Body = $bodyHTML;
$mailBuilder->AltBody = $bodyText;
// Prep things so we have a nice, raw message ready to send via Google's API
try {
$mailBuilder->preSend();
$rawMessage = base64_encode($mailBuilder->getSentMIMEMessage());
$rawMessage = str_replace(['+', '/', '='], ['-', '_', ''], $rawMessage); // url safe
$gMessage = new Google_Service_Gmail_Message();
$gMessage->setRaw($rawMessage);
// Send it!
$result = $mailService->users_messages->send('me', $gMessage);
} catch (Exception $e) {
// Handle any problems building or sending the email here
}
if ($result->labelIds[0] == "SENT") echo "Message sent!";
else echo "Something went wrong...";