使PHP的mail()异步

Question

我有PHP mail()使用ssmtp,它没有队列/假脱机,并且与AWS SES同步.

我听说我可以使用SwiftMail来提供一个假脱机,但是我无法像我目前那样找到一个简单的配方来使用它mail().

我希望用最少量的代码来提供异步邮件.我不在乎电子邮件是否发送失败,但是有一个日志会很好.

任何简单的提示或技巧？没有运行一个完整的邮件服务器？我在想sendmail包装器可能是答案,但我无法解决nohup.

Answer 1

你有很多方法可以做到这一点,但处理线程不一定是正确的选择.

• register_shutdown_function:发送响应后调用shutdown函数.它不是真正的异步,但至少它不会减慢您的请求.关于实现,请参阅示例.
• Swift池:使用symfony,你可以轻松使用线轴.
• 队列:注册要在队列系统中发送的邮件(可以使用RabbitMQ,MySQL,redis或其他任何东西),然后运行一个消耗队列的cron.可以用简单的东西作为一个MySQL表来完成与像场from,to,message,sent(Boolean设置为true当你发送的电子邮件).

register_shutdown_function的示例

<?php
class MailSpool
{
  public static $mails = [];

  public static function addMail($subject, $to, $message)
  {
    self::$mails[] = [ 'subject' => $subject, 'to' => $to, 'message' => $message ];
  }

  public static function send() 
  {
    foreach(self::$mails as $mail) {
      mail($mail['to'], $mail['subject'], $mail['message']);
    }
  }
}

//In your script you can call anywhere
MailSpool::addMail('Hello', 'contact@example.com', 'Hello from the spool');


register_shutdown_function('MailSpool::send');

exit(); // You need to call this to send the response immediately

Answer 2

PHP-FPM

您必须运行php-fpm才能使fastcgi_finish_request可用.

echo "I get output instantly";
fastcgi_finish_request(); // Close and flush the connection.
sleep(10); // For illustrative purposes. Delete me.
mail("test@example.org", "lol", "Hi");

在完成对用户的请求后,将任意代码排队等待处理非常容易:

$post_processing = [];
/* your code */
$email = "test@example.org";
$subject = "lol";
$message = "Hi";

$post_processing[] = function() use ($email, $subject, $message) {
  mail($email, $subject, $message);
};

echo "Stuff is going to happen.";

/* end */

fastcgi_finish_request();

foreach($post_processing as $function) {
  $function();
}

行家背景工作者

立即超时卷曲并让新请求处理它.我之前在共享主机上这样做很酷.(它永远不会酷)

if(!empty($_POST)) {
  sleep(10);
  mail($_POST['email'], $_POST['subject'], $_POST['message']);
  exit(); // Stop so we don't self DDOS.
}

$ch = curl_init("http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);

curl_setopt($ch, CURLOPT_TIMEOUT, 1);
curl_setopt($ch, CURLOPT_NOSIGNAL, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, [
  'email' => 'noreply@example.org',
  'subject' => 'foo',
  'message' => 'bar'
]);

curl_exec($ch);
curl_close($ch);

echo "Expect an email in 10 seconds.";

Answer 3

将AWS SES与PHPMailer一起使用.

这种方式非常快(每秒数百条消息),并且所需的代码不多.

$mail = new PHPMailer;
$mail->isSMTP();                                      // Set mailer to use SMTP
$mail->Host = 'ssl://email-smtp.us-west-2.amazonaws.com';  // Specify main and backup SMTP servers

$mail->SMTPAuth = true;                               // Enable SMTP authentication

$mail->Username = 'blah';                 // SMTP username
$mail->Password = 'blahblah';                           // SMTP password


$mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
$mail->Port = 443; 

不确定我是否正确解释了你的问题,但我希望这会有所帮助.