Swiftmailer：向多个收件人发送电子邮件

Question

我正在尝试通过 swiftmailer 库从联系表单发送电子邮件。我的设置将邮件发送给单个收件人，但是当我尝试发送给多个电子邮件时，它会引发错误：

Address in mailbox given [email1@gmail.com,email2@gmail.com] does not comply with RFC 2822, 3.6.2.

但这两个电子邮件根据规范有效。

这是代码；

$failed = [];
$sent = 0;
$to = [];

if (isset($_POST['recipients'])) {
    $recipients = $_POST['recipients'];
}

// Send the message
foreach ((array) $recipients as $to) {
    $message->setTo($to);
    $sent += $mailer->send($message, $failed);
}

print_r($recipients);   
printf("Sent %d messages\n", $sent);

当我在输入字段中发送一封电子邮件时，print_r($recipients) 之前给了我这个数组：(Array ( [0] => email1@gmail.com ) Sent 1 messages) 但现在它没有给数组。

我了解到 foreach 需要数组，但我没有得到数组。

有一次，我收到一个错误，提示 'recipients' 未定义；这就是为什么我添加了 if isset() 检查。

如何单独发送每封电子邮件？

Answer 1

看起来 $_POST['recipients'] 是一个逗号分隔的字符串。您需要使用 explode() 在逗号上拆分字符串。将其转换为数组不会为您做这些：

// We should give $recipients a default value, in case it's empty.
// Otherwise, you would get an error when trying to use it in your foreach-loop
$recipients = [];

if(!empty($_POST['recipients'])){
    // Explode the string
    $recipients =  explode(',', $_POST['recipients']);
}      

// Send the message
foreach ($recipients as $to) {
    // To be safe, we should trim the addresses as well, removing any potential spaces. 
    $message ->setTo(trim($to));
    $sent += $mailer->send($message, $failed);
}

Swiftmailer：向多个收件人发送电子邮件

Swiftmailer: sending email to multiple recipient

php

arrays

email

foreach

swiftmailer