使用以下代码发送php电子邮件时遇到问题。 MIME heades继续在消息中显示，并且附件在消息体中显示为涂鸦文本而不是附件。可能是什么问题
<?php
session_start();
require_once("includes/functions.php");
require_once("includes/dbconnect.php");
require_once("Mail/mailfunctions.php");
//function_to_be_applied($finaldest_email, $message, $subject, $fromname, $fromemail, $replyto )
function function_to_be_applied($finaldest_email, $key){
//require_once "Mail.php" ;
global $fromemail;
global $message;
global $fromname;
global $subject;
global $replyto;
global $seconds;
global $reprt;
global $headers;
$to = $finaldest_email;
$from = "".$fromname." <$fromemail>";
$subject = $subject;
if(mail($to, $subject, $message, $headers)) {
sleep($seconds);
$reprt .= "Message successfully sent to: ". $to."<br />";
} else {
$reprt .= "Message not successfully sent to: ". $to."<br />";
}
}
if(isset($_POST['submit']))
{
$errors_val = array();
$required_fields = array("subject", "fromemail", "message", "dest_email");
foreach($required_fields as $fieldname)
{
if( !isset($_POST[$fieldname]) || ( empty($_POST[$fieldname]) &&(!is_int($_POST[$fieldname])) ))
{
if($fieldname == "subject")
{$errors_val[0] = "-Sending email without SUBJECT is not allowed";}
if($fieldname == "fromemail")
{$errors_val[1] = "-Sending email without a FROM EMAIL is not allowed";}
if($fieldname == "message")
{$errors_val[2] = "-Sending an empty message is not allow";}
if($fieldname == "dest_email")
{$errors_val[3] = "-There must be at least one email in the destination email address";}
}
}
if(empty($errors_val)){
$errors = array();
if(false == validate_email(trim($_POST['fromemail']))){
$errors[0] = "FROM EMAIL is invalid";
}
if(false == validate_email(trim($_POST['replyto']))){
$errors[1] = "REPLY TO EMAIL is invalid";}
if(!is_numeric(trim($_POST['seconds']))){
$errors[2] = "Seconds between messages must be a number";}
$allowtypes = array("doc", "pdf", "txt", "zip", "gif", "jpeg", "jpg"); //the type of file can be attached
$max_file_size="100"; //describes the size that cab be attached
// checks that we have a file
if((!empty($_FILES["attachment"])) && ($_FILES["attachment"]["error"] == 0)) {
//set a variable $attached = 1
$attached = 1;
// basename -- Returns filename component of path
$filename = basename($_FILES['attachment']['name']);
$ext = substr($filename, strrpos($filename, '.') + 1);
$filesize=$_FILES['attachment']['size'];
$max_bytes=$max_file_size*1024;
//Check if the file type uploaded is a valid file type.
if (!in_array($ext, $allowtypes)) {
$errors[3]="Invalid extension for your file: <strong>".$filename."</strong>";
unset($attached);
// check the size of each file
} elseif($filesize > $max_bytes) {
$errors[4]= "Your file: <strong>".$filename."</strong> is to big. Max file size is ".$max_file_size."kb.";
unset($attached);
}
}
if(empty($errors)){
//generate a unique boundary
$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
if(isset($_POST['seconds']) && ($_POST['seconds'] != ""))
{$seconds = $_POST['seconds'];}else{$seconds = 0.5;}
$subject = trim($_POST['subject']);
$fromname = trim($_POST['fromname']);
$fromemail = trim($_POST['fromemail']);
$from = stripslashes($fromname)."<".stripslashes($fromemail).">";
$emailmessage = trim($_POST['message']);
$replyto = trim($_POST['replyto']);
$dest_email = trim($_POST['dest_email']);
$emailarray = explode("\r\n", $dest_email, 400);
$finaldest_email = array_unique($emailarray );
$headers = "From: " . $from . "\r\n";
$headers .= "Reply-To:" . $replyto . "\r\n";
$headers .= "Mime-Version: 1.0\r\n";
$headers .= " Content-Type: multipart/mixed;\r\n" .
" boundary=\"{$mime_boundary}\"";
//attachment
if(isset($attached)){
$fileatt = $_FILES["attachment"]["tmp_name"];
$fileatt_type = $_FILES["attachment"]["type"];
$fileatt_name = $_FILES["attachment"]["name"];
if (is_uploaded_file($fileatt)) {
// Read the file to be attached ('rb' = read binary)
$data = file_get_contents($fileatt);
//$file = fopen($fileatt,'rb');
//$data = fread($file,filesize($fileatt));
//fclose($file);
// Base64 encode the file data
$finaldata = chunk_split(base64_encode($data));
}
$message = "--{$mime_boundary}\r\n";
$message .= "Content-Type: text/plain; charset=\"iso-8859-1\"\r\n";
$message .= "Content-Transfer-Encoding: 7bit\r\n";
$message .= "{$emailmessage}\r\n";
$message .= "--{$mime_boundary}\r\n";
$message .= "Content-Type: {$fileatt_type}; name=\"{$fileatt_name}\"\n\n".
"Content-Transfer-Encoding: base64\n\n";
$message .= "Content-Disposition: attachment; filename=\"{$fileatt_name}\"\n\n";
$message .= "{$finaldata} \r\n--{$mime_boundary}--\r\n";
}elseif(!isset($attached)){
$message = "--{$mime_boundary}\r\n";
$message .= "Content-Type: text/plain; charset=\"iso-8859-1\" \r\n";
$message .= "Content-Transfer-Encoding: 7bit\r\n";
$message .= "{$emailmessage}\r\n";
$message .= "--{$mime_boundary}--\r\n";
}
$reprt = "Preparing to send message..<br />";
if( true == array_walk($finaldest_email, 'function_to_be_applied' )){
$numberofemailsent = count($finaldest_email);
}else{echo "No email sent";}
}else{$string = implode("<br /> -" , $errors); $error_message = $string; }
}else{$string = implode("<br /> -" , $errors_val); $error_message = $string; }
}
?>
答案 0 :(得分：2)
不要生成自己的哑剧电子邮件。使用PHPMailer或Swiftmailer并将该脚本的大部分减少到10行代码。
同样，不要通过查看文件名来验证文件类型。伪造文件名和客户端指定的mime类型是微不足道的。始终使用服务器端mime验证。