内容传输编码问题

Question

I have a problem here. 我在这里有问题。 I created a mail() PHP script to send attachments and you would normally send in your regular email provider. 我创建了一个mail（）PHP脚本来发送附件，您通常会通过常规的电子邮件提供商发送邮件。 The problem is that I can only send files up to a certain number of characters. 问题是我只能发送不超过一定数量字符的文件。 For example I can send a file with this name "New Text Document" but if I try to send a file with this name "New Document of Microsoft Word (3)" it never gets to my email. 例如，我可以发送一个名称为“ New Text Document”的文件，但是如果我尝试发送该名称为“ New Word of Microsoft Word（3）”的文件，它将永远不会进入我的电子邮件。

Can someone please tell me why this happens? 有人可以告诉我为什么会这样吗？

error_reporting(-1);
if(empty($_POST) === false){
$errors = array();

$name = $_POST['name'];
$email = $_POST['email'];
$file = $_FILES['filename'];

if(empty($name) === true || empty($email) === true || empty($_POST['message']) === true){
  $errors[] = 'Name, email and message are required!';
} else {
  if(filter_var($email, FILTER_VALIDATE_EMAIL) === false){
   $errors[] ='Not a valid email';
  }
  if(ctype_alpha($name) === false){
   $errors[] ='Name must only contain letters';
  }
}
$message;
if(empty($errors) === true){
  if($_FILES['filename']['error'] == UPLOAD_ERR_OK){
   $boundary = '-----' . md5(rand()) . '---';
   $headers = array(
    'MIME-Version: 1.0',
    "Content-type: multipart/mixed; boundary=\"{$boundary}\"",
    "From: {$email}"
   );
   $message = array(
    "--{$boundary}",
    'Content-type: text/html',
    'Content-Transfer-Encoding: 7bit',
    '',
    chunk_split($_POST['message']),
    "--{$boundary}",
    "Content-type: {$file['type']}; name=\"{$file['name']}\"",
    "Content-Disposition: attachment; filename=\"{$file['name']}\"",
    'Content-Transfer-Encoding: base64',
    '',
    chunk_split(base64_encode(file_get_contents($file['tmp_name']))),
    "--{$boundary}--"
   );
   $message = implode("\r\n", $message);
  } else {
   $headers = array(
    "From: {$email}"
   );
   $message = &$_POST['message'];
  }
  //send email
  var_dump(mail($email, 'Contact form', $message, implode("\r\n", $headers)));

   echo $_FILES['filename']['name'];
  /*//redirect user
  header('Location: index.php?sent');
  exit();*/
}  
}
?

<!doctype html>
<html>
<head>
  <title>A contact form</title>
</head>
<body>
  <?php
   if(isset($_GET['sent']) === true){
    echo '<p>Thanks for contacting us</p>';
   } else {
    if(empty($errors) === false){
         echo '<ul>';
         foreach($errors as $error){
          echo '<li>', $error ,'</li>';
         }
         echo '</ul>';
    }
            ?>
            <form action="" method="post" enctype="multipart/form-data">
                    <p>
                            <label for="name">Name:</label><br />
                            <input type="text" name="name" id="name" <?php     if(isset($_POST['name']) === true){ echo 'value="', strip_tags($_POST['name']), '"';} ?>>
                    </p>
                    <p>
<label for="email">Email:</label><br />
                            <input type="text" name="email" id="email" <?php     if(isset($_POST['email']) === true){ echo 'value="', strip_tags($_POST['email']), '"';} ?>>
                    </p>
                    <p>
                            <label for="message">Message:</label><br />
                            <textarea name="message" id="message"><?php     if(isset($_POST['message']) === true){ echo strip_tags($_POST['message']); } ?></textarea>
                    </p>
                    <p>
                            List of files allowed: .pdf, .odt, .doc(x), xls(x), ppt(x), >xps, xml
                    </p>
                    <p>
                            <input type="file" name="filename">
                    </p>
                    <p>
                            <input type="submit" value="submit">
                    </p>
            <?php
                    }
            ?>
            </form>
</body>
</html>

It sends attachments but only if the file has for example the file has a name 10 characters, but if it has 15 it won't send 它发送附件，但仅在文件包含例如10个名称的文件时才发送附件，但如果包含15个字符，则不会发送附件

Answer 1

   $filename = preg_replace("/[^A-Za-z0-9\.]/", "" $file['name']); ;

   "Content-Disposition: attachment; filename=\"{$filename}\""

should work. 应该管用。 It are not the number of characters, but the strange characters ( "(", ")", etc) that mess it up. 不是字符的数量，而是使它们混乱的奇怪字符（“（”，“）”等）。

内容传输编码问题

问题描述

1 个解决方案

解决方案1
0 2013-01-28 21:52:17

内容传输编码问题

问题描述

1 个解决方案

解决方案1 0 2013-01-28 21:52:17

解决方案1
0 2013-01-28 21:52:17