我正在尝试添加一个附件到我起草的电子邮件，但似乎不能让它工作。我试着在这里和这里效仿，但没有成功。
到目前为止我能做的是:
- 连接到Exchange服务器
- 打开邮箱
- 起草html电子邮件
- 将电子邮件附加到邮箱，并使其正确呈现html。(当使用text/html作为内容类型时)。使用其他任何方式都将html显示为明文。
作为附加说明，在起草后，电子邮件被附加到Exchange 2010服务器上的邮箱中，并通过Outlook 2010查看然后发送。
下面是我的mailer类和起草邮件的代码。
mailer.php
<?php
class mailer
{
const USER = 'user';
const PASSWORD = 'pass';
const MAILBOX = '{conn}DRAFTS';
// STRING ORDER: $content-type . $from . $to . $cc . $subject . "'r'n'r'n" . $message
public $message;
public $imap_conn;
public $boundary;
function __construct()
{
// Open the message property so we can start appending strings.
$this->message = '';
// Open the IMAP connection
$this->imap_conn = imap_open(self::MAILBOX,self::USER,self::PASSWORD);
}
public function content_type($string_type)
{
$this->message .= "Content-type:{$string_type}'r'n";
}
public function from($string_from)
{
$this->message .= "From:{$string_from}'r'n";
}
public function to($string_to)
{
$this->message .= "To:{$string_to}'r'n";
}
public function cc($string_cc)
{
$this->message .= "Cc:{$string_cc}'r'n";
}
public function mime($float_mime_version)
{
$this->message .= "MIME-Version:{$float_mime_version}'r'n";
}
public function subject($string_subject)
{
$this->message .= "Subject:{$string_subject}'r'n'r'n";
}
public function message($string_message)
{
$this->message .= "{$string_message}'r'n";
}
public function set_boundary($string_boundary)
{
$this->boundary = $string_boundary;
}
public function append()
{
imap_append($this->imap_conn,self::MAILBOX,$this->message,"''Draft");
imap_close($this->imap_conn);
}
}
?>
// A random hash used for the boundary
$rh = md5(date('c',time()));
$data = chunk_split(base64_encode('Testing'));
$m = new mailer;
$m->set_boundary('--PHP-mixed-' . $rh);
$m->content_type('multipart/mixed; boundary="' . $m->boundary . '"');
$m->mime('1.0');
$m->from('from@mail.com');
$m->to('to@mail.com');
$m->cc('cc1@mail.com,cc2@mail.com');
$m->subject('A new email');
$m->message("
{$m->boundary}
Content-Type: text/html; charset='"utf-8'"
Content-Transfer-Encoding: base64
Testing my <b>HTML</b>
</br>
{$m->boundary}
Content-Type: application/octet-stream; name='"test.txt'"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename='"test.txt'"
{$data}
{$m->boundary}--
"));
$m->append();
后面的
Content-type:multipart/mixed; boundary="--PHP-mixed-b408f941593cf92b5a8bd365abb4e64f"
MIME-Version:1.0
From:from@mail.com
To:to@mail.com
Cc:cc1@mail.com
Subject:New Message
--PHP-mixed-b408f941593cf92b5a8bd365abb4e64f
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: "base64"
My <b>html</b> content
--PHP-mixed-b408f941593cf92b5a8bd365abb4e64f
Content-Type: application/octet-stream; name="test.txt"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="test.txt"
--PHP-mixed-b408f941593cf92b5a8bd365abb4e64f--
问题:如何通过IMAP将附件添加到PHP起草的电子邮件中?
答案:简而言之，问题出在两个地方。换行符放置不当('r'n)。每个标题后面应该有一个换行符，每个节的结束标题后面应该有两个换行符。
不当边界。边界应该以——开头，后跟一个唯一的字符串。消息的结束边界应该以——(参见图2
)开始和结束。
Content-Type: text/html'r'n
Content-Encoding: base64'r'n'r'n
"Message text here."'r'n
--unique
Content-Type: text/html'r'n
Content-Encoding: base64'r'n'r'n
HTML stuff here.'r'n
--unique
Content-Type: application/octet-stream'r'n
Content-Disposition: attachment; filename='"logs.csv'"'r'n
Content-Transfer-Encoding: base64'r'n'r'n
Attachment(s)'r'n
--unique--
我打算写一篇更深入的文章，因为我花了非常很长时间才把它写对。
了解到目前为止调试的更多信息将会很有帮助。文件是否读取成功?有东西送到邮箱了吗?它还可以帮助我在最后追加之前看到完整消息的输出。
我不知道这是否会解决它，但从我成功的代码和你的第二个例子中，你的消息应该有一个额外的文件名属性，并在引号中包装的值。
Content-Type: application/octet-stream; name="test.txt"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="test.txt"