我知道这个问题被问了好几次，但我没有找到有效的答案。
正如标题所说，我有一个输入文件类型的 php 表单，在提交时，所有数据都将通过电子邮件发送，包括作为附件的文件，为什么我找不到任何工作脚本。
请帮忙。
更新我的答案
$fileatt = $_FILES['uploadfile']['tmp_name'];
$fileatt_type = $_FILES['uploadfile']['type'];
$fileatt_name = $_FILES['uploadfile']['name'];
$subject = "Some Subject goes here";
$uploadedfile = $_FILES['uploadfile']['name'];
$headers = "From: " . strip_tags($_POST['email']) . "\r\n";
$headers .= "Reply-To: ". strip_tags($_POST['email']) . "\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=utf-8\r\n";
$headers .= "Content-Type: application/octet-stream; name=\"".$fileatt_name."\"\r\n";
$headers .= "Content-Transfer-Encoding: base64\r\n";
// create a boundary string. It must be unique
$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
// Add the headers for a file attachment
$headers .= "\nMIME-Version: 1.0\n" .
"Content-Type: multipart/mixed;\n" .
" boundary=\"{$mime_boundary}\"";
if (is_uploaded_file($fileatt)) {
// Read the file to be attached ('rb' = read binary)
$file = fopen($fileatt,'rb');
$data = fread($file,filesize($fileatt));
fclose($file);
// Base64 encode the file data
$data = chunk_split(base64_encode($data));
}
//begin of HTML message
$message ="This is a multi-part message in MIME format.\n\n";
$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
$message .= "--{$mime_boundary}\n" .
"Content-Type: {$fileatt_type};\n" .
" name=\"{$fileatt_name}\"\n" .
//"Content-Disposition: attachment;\n" .
//" filename=\"{$fileatt_name}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--{$mime_boundary}--\n";