用附件发邮件的PHP脚本问题（没有库）

Question

我把放在一起的一个HTML表单a发送到自己的输入，然后继续发送一个带有表单内容和附加文件的电子邮件。我从this帖子中接受了答案，并尝试将其整合到我的表单中。然而，我的代码完成没有错误，但我没有收到电子邮件。这里是它的一部分：

<?php 
    if(isset($_POST['submit2'])) 
    { 
     //The form has been submitted, prep a nice thank you message 
     $output = '<h1>Thanks for your file and message!</h1>'; 

    //Set the form flag to no display (cheap way!) 
     $flags = 'style="display:none;"'; 

     //Deal with the email 
     $to = 'testing@example.com'; 
     $subject = 'Article Submission'; 

     $message = $_POST['name'].'\n'.$_POST['email'].'\n\n'.$_POST['title'].'\n'.$_POST['remarks']; 
     $attachment = chunk_split(base64_encode(file_get_contents($_FILES['file']['tmp_name']))); 
     $filename = $_FILES['file']['name']; 

     $boundary =md5(date('r', time())); 

     $headers = "From: webmaster@example.com\r\nReply-To: webmaster@example.com"; 
     $headers .= "\r\nMIME-Version: 1.0\r\nContent-Type: multipart/mixed; boundary=\"_1_$boundary\""; 

     $message="This is a multi-part message in MIME format. 

--_1_$boundary 
Content-Type: multipart/alternative; boundary=\"_2_$boundary\" 

--_2_$boundary 
Content-Type: text/plain; charset=\"iso-8859-1\" 
Content-Transfer-Encoding: 7bit 

$message 

--_2_$boundary-- 
--_1_$boundary 
Content-Type: application/octet-stream; name=\"$filename\" 
Content-Transfer-Encoding: base64 
Content-Disposition: attachment 

$attachment 
--_1_$boundary--"; 

     mail($to, $subject, $message, $headers); 
    } 
?> 


<h2> Article Submission </h2> 
(*) Required Fields<br> 
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data"> 
<table> 

<tr> 
    <td> Name </td> 
    <td> <input type="text" name="name" size="30"> * </td> 
</tr> 
<tr> 
    <td> Email </td> 
    <td> <input type="text" name="email" size="30"> * </td> 
</tr> 

<tr> <td>&nbsp;</td><td>&nbsp;</td> </tr> 

<tr> 
    <td> Title of Article </td> 
    <td> <input type="text" name="title" size="40"> * </td> 
</tr> 
<tr> 
    <td> Program </td> 
    <td></td> 
</tr> 
<tr> 
    <td> Course </td> 
    <td> </td> 
</tr> 
<tr> 
    <td> File </td> 
    <td> <input type="file" name="file" id="file"> </td> 
</tr> 

<tr> <td>&nbsp;</td><td>&nbsp;</td> </tr> 

<tr> 
    <td valign="top"> Remarks </td> 
    <td> <textarea rows="6" cols="40" name="remarks"> </textarea> 
</tr> 
<tr> 
    <td> <input type="submit" name="submit2" value="Submit" id="submit"> </td> 
</tr> 

</table> 
</form> 

</div> 
<?php include('include/main_footer.php'); ?> 

如果你想知道缺少的输入，表格不是100％完整的。

Answer 1

请勿构建您自己的MIME消息。这太痛苦，容易出错。使用免费的Swiftmailer或PHPMailer。同样，如果将邮件移交给本地邮件服务器时出现问题，mail()将返回false，因此请检查该值。

Swiftmailer和PHPMailer比mail（）有更好的诊断和错误处理，所以虽然mail（）会告诉你它失败了，但其他两个会告诉你为什么事情失败。