如何在PHP中使用队列实现发送带附件的邮件？

class MailSender {
    public function send($to, $subject, $message, $attachments = []) {
        // 创建邮件任务
        $job = [
            'to' => $to,
            'subject' => $subject,
            'message' => $message,
            'attachments' => $attachments
        ];
        // 将任务放入队列
        $this->putJobToQueue($job);
    }

    private function putJobToQueue($job) {
        // 连接Beanstalkd服务器
        $pheanstalk = new PheanstalkPheanstalk('127.0.0.1');

        // 将任务数据转换为JSON字符串
        $jobData = json_encode($job);

        // 将任务放入队列
        $pheanstalk->useTube('mail')->put($jobData);
    }
}

require 'vendor/autoload.php';

use PheanstalkPheanstalk;

// 连接Beanstalkd服务器
$pheanstalk = new Pheanstalk('127.0.0.1');

// 设置监听的队列tube
$pheanstalk->watch('mail');

while (true) {
    // 获取队列中的任务
    $job = $pheanstalk->reserve();

    // 从任务数据中解析出邮件信息
    $jobData = json_decode($job->getData(), true);
    $to = $jobData['to'];
    $subject = $jobData['subject'];
    $message = $jobData['message'];
    $attachments = $jobData['attachments'];

    // 发送邮件
    $mail = new PHPMailerPHPMailerPHPMailer();
    $mail->isSMTP();
    // 配置SMTP服务器等相关信息
    // ...
    $mail->Subject = $subject;
    $mail->Body = $message;
    $mail->addAddress($to);

    foreach ($attachments as $attachment) {
        $mail->addAttachment($attachment['path'], $attachment['name']);
    }

    if ($mail->send()) {
        // 邮件发送成功，删除队列中的任务
        $pheanstalk->delete($job);
    } else {
        // 邮件发送失败，将任务放回队列，稍后重试
        $pheanstalk->release($job, 10);
    }
}

$mailSender = new MailSender();

// 发送带附件的邮件
$mailSender->send('to@example.com', '测试邮件', '这是一封带附件的测试邮件', [
    [
        'path' => '/path/to/attachment1.pdf',
        'name' => 'attachment1.pdf'
    ],
    [
        'path' => '/path/to/attachment2.jpg',
        'name' => 'attachment2.jpg'
    ]
]);