PHPMailer 使用 AddStringAttachment 和 AddAttachment

Question

我有一个从用户输入生成 PDF 的表单，以及一个文件上传选项。

所以用户可以上传或不上传文件，我使用AddAttachment作为这部分，AddStringAttachment作为生成的PDF。

这是我的代码：

//PDF
$pdf = $dompdf->output();    

//Configuration
$mail = new PHPMailer;
$mail->IsSMTP();
$mail->CharSet  = 'UTF-8';
$mail->Host     = 'localhost';
$mail->SMTPAuth = false;

//Email details
$mail->From     = 'email@email.com'; 
$mail->FromName = 'My email'; 
$mail->Subject  = 'You have a new email';
$mail->Body     = 'Hi there, You have a new message.<br>';
$mail->AltBody  = 'Hi there, You have a new message.';

//Loop through recipients
$recipients = ['email1@email.com', 'email2@email.com'];

foreach ($recipients as $recipient) {
    $mail->addAddress($recipient);
    $mail->AddStringAttachment($pdf, 'name.pdf'); 
    if (!empty($_FILES['upload']['tmp_path'])) {
        $mail->AddAttachment($_FILES['upload']['tmp_path'], 'upload.pdf');    
    }

    if ( !$mail->Send() ) {
        echo 'Not sent';     
    } else {
        echo 'Sent';
    }

    // Clear all addresses and attachments for next loop
    $mail->clearAddresses();
    $mail->clearAttachments();
}

问题是，当我上传文件时，我收到 2 封电子邮件： 1-带有附件和生成的PDF（这是预期的） 2-仅使用生成的pdf。但是内容乱七八糟，看起来不对。

当我不上传文件时，我只会收到一封电子邮件。

我尝试只发送到 1 封电子邮件，但结果相同。

Answer 1

如果可行，请不要将其标记为 Gview 的答案，我只是展示了代码并修复了资源问题。

虽然 Gview 的答案应该可以解决问题，但您确实不应该在循环内添加和删除附件

这是使用 gview 发布的修复程序的完整代码版本，不会浪费 CPU 资源不必要地附加和删除您的 PDF 附件。正如 miken32 在 cmets 中所说的那样。

//Configuration
$mail = new PHPMailer;
$mail->IsSMTP();
$mail->CharSet  = 'UTF-8';
$mail->Host     = 'localhost';
$mail->SMTPAuth = false;

//Email details
$mail->From     = 'email@email.com'; 
$mail->FromName = 'My email'; 
$mail->Subject  = 'You have a new email';
$mail->Body     = 'Hi there, You have a new message.<br>';
$mail->AltBody  = 'Hi there, You have a new message.';

//Loop through recipients
$mail->AddStringAttachment($pdf, $filename); 
if (!empty($attach)) {
    $mail->AddAttachment($path, $report);    
}

foreach ($recipients as $recipient) {
    $mail->addAddress($recipient);

    if ( !$mail->Send() ) {
        echo 'Not sent';     
    } else {
        echo 'Sent';
    }

    // Clear all addresses and attachments for next loop
    $mail->clearAllRecipients();
}

$mail->clearAttachments();