Question

编辑：我忘记了我自己创建了SendMail();函数，这就是为什么解释一开始没有提到它的作用。

在尝试发送两封电子邮件时，我遇到了PHPMailer（https://github.com/PHPMailer/PHPMailer）的问题，其中一封是直接发送的。

该脚本几乎完全“开箱即用”，只需进行一些修改，例如foreach循环，以允许多个地址，并且一切仍然完美。

但是，如果我尝试调用SendMail();的多个实例，我会收到错误消息：

Fatal error: Cannot override final method Exception::__clone() in .... online 0

以前我使用的是内置mail();函数，它允许我快速连续使用它多次，但使用PHPmailer似乎并不那么简单：

$to = me@me.com;
$to2 = me2@me2.com';
$headers = 'php headers etc';
$subject = 'generic subject';
$message = 'generic message';
mail($to, $subject, $message, $headers);
mail($to2, $subject, $message, $headers);

上述操作会导致两封相同的电子邮件发送给不同的人，但我无法轻松地使用PHPmailer复制此功能。

有没有办法堆叠这些请求，以便我可以发送连续的电子邮件而不会失败？

：强制脚本等到第一封电子邮件发送完毕后也是可以接受的。

正如我所提到的，我知道它只在调用一个实例时有效，但我似乎无法重复使用该功能。

我没有包含源代码，尽管它可以在上面提供的链接上找到。

提前致谢

按要求编辑

// First Email
$to = array(
'test@test.com',
 'test2@test.com',);
$subject = "Subject";
$message = $message_start.$message_ONE.$message_end;

sendMail();

// Second Email
$to = array(
'test@test.com',
 'test2@test.com',);
$subject = "Subject";
$message = $message_start.$message_TWO.$message_end;

sendMail();

以上是我希望这项工作的方式，因为它适用于mail();。第一封电子邮件可以正常工作，第二封邮件不会。

SendMail（）代码

这是来自PHPmailer网站，定义为SendMail();。与示例的唯一区别是AddAddress的循环，以及$to作为全局变量的包含。

$mail = new PHPMailer();

$mail->IsSMTP();                                      // set mailer to use SMTP
$mail->Host = "smtp1.example.com;smtp2.example.com";  // specify main and backup server
$mail->SMTPAuth = true;     // turn on SMTP authentication
$mail->Username = "jswan";  // SMTP username
$mail->Password = "secret"; // SMTP password

$mail->From = "from@example.com";
$mail->FromName = "Mailer";
foreach($to as $to_add){
$mail->AddAddress($to_add);                  // name is optional
}
$mail->AddReplyTo("info@example.com", "Information");

$mail->WordWrap = 50;                                 // set word wrap to 50 characters
$mail->AddAttachment("/var/tmp/file.tar.gz");         // add attachments
$mail->AddAttachment("/tmp/image.jpg", "new.jpg");    // optional name
$mail->IsHTML(true);                                  // set email format to HTML

$mail->Subject = "Here is the subject";
$mail->Body    = "This is the HTML message body <b>in bold!</b>";
$mail->AltBody = "This is the body in plain text for non-HTML mail clients";

if(!$mail->Send())
{
   echo "Message could not be sent. <p>";
   echo "Mailer Error: " . $mail->ErrorInfo;
   exit;
}

echo "Message has been sent";

Answer 1

你还没有发布这个代码让我得出一个完整的结论，但是从Exception和你在函数中定义一个重写类的方式，你可能每次都加载class.phpmailer.php这样：

require('class.phpmailer.php');

或

include('class.phpmailer.php');

您应该将该行更改为

require_once('class.phpmailer.php');

您需要将其更改为require_once的原因是，当您尝试创建新的/ PHPMailer类时，PHP将不会第二次加载类文件。否则，行class PHPMailer会抛出__clone()例外。

Answer 2

在下面添加了一个示例：

<?php
/**
 * This example shows how to send a message to a whole list of recipients efficiently.
 */

//Import the PHPMailer class into the global namespace
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

error_reporting(E_STRICT | E_ALL);

date_default_timezone_set('Etc/UTC');

require '../vendor/autoload.php';

//Passing `true` enables PHPMailer exceptions
$mail = new PHPMailer(true);

$body = file_get_contents('contents.html');

$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->SMTPAuth = true;
$mail->SMTPKeepAlive = true; // SMTP connection will not close after each email sent, reduces SMTP overhead
$mail->Port = 25;
$mail->Username = 'yourname@example.com';
$mail->Password = 'yourpassword';
$mail->setFrom('list@example.com', 'List manager');
$mail->addReplyTo('list@example.com', 'List manager');

$mail->Subject = 'PHPMailer Simple database mailing list test';

//Same body for all messages, so set this before the sending loop
//If you generate a different body for each recipient (e.g. you're using a templating system),
//set it inside the loop
$mail->msgHTML($body);
//msgHTML also sets AltBody, but if you want a custom one, set it afterwards
$mail->AltBody = 'To view the message, please use an HTML compatible email viewer!';

//Connect to the database and select the recipients from your mailing list that have not yet been sent to
//You'll need to alter this to match your database
$mysql = mysqli_connect('localhost', 'username', 'password');
mysqli_select_db($mysql, 'mydb');
$result = mysqli_query($mysql, 'SELECT full_name, email, photo FROM mailinglist WHERE sent = FALSE');

foreach ($result as $row) {
    try {
        $mail->addAddress($row['email'], $row['full_name']);
    } catch (Exception $e) {
        echo 'Invalid address skipped: ' . htmlspecialchars($row['email']) . '<br>';
        continue;
    }
    if (!empty($row['photo'])) {
        //Assumes the image data is stored in the DB
        $mail->addStringAttachment($row['photo'], 'YourPhoto.jpg');
    }

    try {
        $mail->send();
        echo 'Message sent to :' . htmlspecialchars($row['full_name']) . ' (' . htmlspecialchars($row['email']) . ')<br>';
        //Mark it as sent in the DB
        mysqli_query(
            $mysql,
            "UPDATE mailinglist SET sent = TRUE WHERE email = '" .
            mysqli_real_escape_string($mysql, $row['email']) . "'"
        );
    } catch (Exception $e) {
        echo 'Mailer Error (' . htmlspecialchars($row['email']) . ') ' . $mail->ErrorInfo . '<br>';
        //Reset the connection to abort sending this message
        //The loop will continue trying to send to the rest of the list
        $mail->getSMTPInstance()->reset();
    }
    //Clear all addresses and attachments for the next iteration
    $mail->clearAddresses();
    $mail->clearAttachments();
}

Answer 3

除了@Amr 最优秀的代码。为了在 cron fasion 中使用它，两个 add 很有用。

$mail-> SMTPDebug = true;
$mail-> Debugoutput = function( $str, $level ) {_log($str);};

_log 函数由您决定。写入文件、数据库或任何地方。我个人已将其减少到

$mail-> Debugoutput = function( $str, $level ) {if( $level===3 ) {_log( $str ); } };

只写更有趣的消息

Answer 4

解决方案是像这样重置收件人数据：

$Mailer->clearAddresses()

使用您自己的变量作为 PHPMailer 的实例（而不是 $Mailer）

使用PHPmailer发送多封电子邮件

4 个答案: