PHP mail（）-HTML在添加文件附件后显示为附件

终于解决了所有的bug，现在他们说“哦，我们需要添加附件…”所以，这发送了一封纯文本版本的html邮件，效果非常好。现在我已经收到了附件，邮件客户端将以内联方式显示纯文本版本，html版本作为另一个附件，然后是一个93字节的空文件，文件名为ATT00248.txt

有谁能从后面猛击我的头，或者告诉我哪里出了问题？我希望在邮件用户界面中可以使用HTML内联，在HTML不可用的地方使用纯文本版本，并将单个附件作为附件

有什么帮助吗

<?php
$template = $_SERVER['DOCUMENT_ROOT'] . '/leads/templates/'.$_SESSION['templateFile'];
ob_start();
include($template);
$html = ob_get_contents();
ob_end_clean();

if (strlen($html) == 0) {
    echo "The template at $template did not load.";
    exit;
}

$email   = $_SESSION['user']->email;
$name    = $_SESSION['user']->first_name . ' ' . $_SESSION['user']->last_name;
$from = "$name <$email>";
$subject = unslash($_SESSION['subject']);

$TextMessage =  strip_tags(unslash($_SESSION['message']));

$notice_text = "This is a multi-part message in MIME format.";
$plain_text =  str_replace('&nbsp;',' ', $TextMessage);

if ($_SESSION['attachment']) {
    $fileatt = 'files/' . $_SESSION['attachment'];
    $file = fopen($fileatt,'rb');
    $data = fread($file,filesize($fileatt));
    fclose($file);
    $data = chunk_split(base64_encode($data));
    $mailtype = 'mixed';

    $fileatt_type = "application/octet-stream"; 
    $fileatt_name = $_SESSION['attachment'];
} else {
    $mailtype = 'alternative';
}

$semi_rand = md5(time());
$mime_boundary = "==MULTIPART_BOUNDARY_$semi_rand";
$mime_boundary_header = chr(34) . $mime_boundary . chr(34);

$body = "$notice_text

--$mime_boundary
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

$plain_text

--$mime_boundary
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit

$html

--$mime_boundary
";

$body .= "Content-Type: {$fileatt_type};\n" .
" name=\"{$fileatt_name}\"\n" .
"Content-Disposition: attachment;\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--$mime_boundary\n";



// #1  //
if ($to = $_SESSION['recipients'][0]) {
    mail($to, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header);

    echo "Email sent to " . htmlentities($to) . ".<br />";
}


// #2  //
if ($to = $_SESSION['recipients'][1]) {
    mail($to, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header);
    echo "Email sent to " . htmlentities($to) . ".<br />";
}

// #3  //
if ($to = $_SESSION['recipients'][2]) {
    mail($to, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header);
    echo "Email sent to " . htmlentities($to) . ".<br />";
}

// #4  //
if ($to = $_SESSION['recipients'][3]) {
    mail($to, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header);
    echo "Email sent to " . htmlentities($to) . ".<br />";
}

// #5 //
if ($to = $_SESSION['recipients'][4]) {
    mail($to, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header);
    echo "Email sent to " . htmlentities($to) . ".<br />";
}

// CC self?  //
if ($_SESSION['cc_me']) {
    mail($from, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header);
    echo "Email sent to " . htmlentities($from) . ".<br />";
}

if ($fileatt) {
    unlink($fileatt);
}

echo "<a href='email_start.php'>Click here</a> to send another email.";
list($_SESSION['email'], $_SESSION['subject'], $_SESSION['bullets'], $_SESSION['message'], 
    $_SESSION['templateFile'], $_SESSION['template'], $_SESSION['cc_me'], $_SESSION['recipients']) = '';
?>

---

我想将此作为评论发布，但它太长了

// #1  //
if ($to = $_SESSION['recipients'][0]) {
    mail($to, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header);

    echo "Email sent to " . htmlentities($to) . ".<br />";
}


// #2  ... #3 ... #4 ... #5

或者，如果你真的想给每个人发邮件，或者

foreach ($_SESSION['recipients'] as $to ) {
    if (mail($to, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header)) {
        echo "Email sent to " . htmlentities($to) . ".<br />";
    }
}

foreach（$\u会话['recipients']作为$to）{
如果（邮件（$收件人，$主题，$正文），
From:“.$From.”\n。
“MIME版本：1.0\n”。
“内容类型：multipart/$mailtype；\n”。
“boundary=“.mime_boundary_header））{
回显“电子邮件发送至”.htmlentities（$to）。”
；
}
}

Pekka做得很对-使用Swiftmailer既简单又健壮

您是否考虑过使用像Swiftmailer这样的现成邮件类？佩卡-谢谢你！我太投入自己的工作了，有时会给自己带来压力！斯威夫特梅勒使工作变得简单，没有压力。非常感谢。你应该添加这个作为答案，我会选择它！谢谢你的回复。我应该发布一个指向此的链接：作为对我为何以这种方式进行迭代的解释。标题应以“\r\n”分隔。这是smtp标准的一部分，不是可选的。rfc 5321:2.3.8。线

foreach ($_SESSION['recipients'] as $to ) {
    if (mail($to, $subject, $body,
    "From: " . $from . "\n" .
    "MIME-Version: 1.0\n" .
    "Content-Type: multipart/$mailtype;\n" .
    "     boundary=" . $mime_boundary_header)) {
        echo "Email sent to " . htmlentities($to) . ".<br />";
    }
}