如何在PHPMailer中添加文件附件？

<?php
require 'path/to/PHPMailer/PHPMailerAutoload.php';

// 创建一个PHPMailer实例
$mail = new PHPMailer;

// 配置SMTP服务器信息
$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->Port = 587;
$mail->SMTPAuth = true;
$mail->Username = 'your-email@example.com';
$mail->Password = 'your-password';

// 设置发件人信息
$mail->setFrom('your-email@example.com', 'Your Name');

// 设置收件人信息
$mail->addAddress('recipient@example.com', 'Recipient Name');

// 设置邮件主题和内容
$mail->Subject = 'Test Email with Attachment';
$mail->Body = 'This is a test email with attachment.';

// 添加文件附件
$mail->addAttachment('/path/to/file.pdf', 'Attachment.pdf');

// 发送邮件
if ($mail->send()) {
    echo 'Email sent successfully!';
} else {
    echo 'Email could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
}
?>