MIME header appearing in the email message body

[Juud Leo]

I have a problem sending php email using the code below. The MIME heades keep apearing in the message and the attachment appears as scribble text in the mesage body not as attachment. what could be the problem?

<?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($fromemai l).">";
$emailmessage = trim($_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; }



}

?>

[omerbutt]

change this

$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";

to this

"==Multipart_Boundary_x".md5(mt_rand())."x";

, try to convert the < and > to &lt; and &gt; , i wont recommend using them .
and apart from this you are using text/plain html where as your message contains attachment so there should be following format of your mail.

$userfile    =    "../docs/file.docx";
// generate a random string to be used as the boundary marker
        $mime_boundary="==Multipart_Boundary_x".md5(mt_rand())."x";
 
        $mail_date=date('Ymdhis');
        $headers = 'From:' .$from. "\r\n";
        $headers .= 'Sender:' .$from. "\r\n";
        if(IS_CC==true){$headers .= 'Cc:'.CC_MAIL. "\r\n";}
        if(IS_BCC==true){$headers .= 'Bcc:'.BCC_MAIL. "\r\n";}
         $headers.= "Return-Path: $from "."\r\n"."MIME-Version: 1.0\r\n" ."Content-Type: multipart/mixed;\r\n"." boundary=\"{$mime_boundary}\"";
$message_body = " 
        Dear $to,<br />
 
        ".$sender_name." has sent file(s) to you. Please download the attachment(s) with this email. <br />
 
 
        ____________________________________________ Message from sender _____________________________________<br />
 
        ".$mail_message."<br />
 
        ______________________________________________________________________________________________________<br />
 
 
        Thankyou,<br />
        The ".$teamurl." Team<br />
        www.".$siteUrl." "."\r\n"; 
$message = "This is a multi-part message in MIME format.\n\n" ."--{$mime_boundary}\n" .
        "Content-Type: text/html; charset=\"iso-8859-1\"\n" ."Content-Transfer-Encoding: 7bit\n\n" .
 
        $message_body ."\n\n";
 $tmp_name = $userfile;
          $name = $fileName;
          $size = filesize($userfile);
          $type="application/octet-stream ";
 if (file_exists($tmp_name)){
            // open the file for a binary read
            $file = fopen($tmp_name,'rb');
 
            // read the file content into a variable
            $data = file_get_contents($tmp_name,true) or die("Cant read the file");
 
            // close the file
            fclose($file);
 
            // now we encode it and split it into acceptable length lines
            $data = chunk_split(base64_encode($data));
             // now we'll insert a boundary to indicate we're starting the attachment
             // we have to specify the content type, file name, and disposition as
             // an attachment, then add the file content.
             // NOTE: we don't set another boundary to indicate that the end of the
             // file has been reached here. we only want one boundary between each file
             // we'll add the final one after the loop finishes.
             $message .= "--{$mime_boundary}\n" ."Content-Type: {$type};\n" ." name=\"{$name}\"\n" ."Content-Disposition: attachment;\n" ." filename=\"{$fileatt_name}\"\n" ."Content-Transfer-Encoding: base64\n\n" .
             $data . "\n\n";
          }
// here's our closing mime boundary that indicates the last of the message
        $message.="--{$mime_boundary}--\n";
        // now we just send the message
        if(mail($to, $subject, $message, $headers)){
            $myUser->emailLog($to,$call_id,$subject,'call-group-files-mailed',$mail_date);
            echo "Mail Sent";
        }else{
            echo "Unable to send mail to the reciptant, please try later";
        }
 

regards,
Omer Aslam