<?php
$to = "recipient@somedomain.com"; # Remove this variable if email address will be passed in
$c_name ="Customer Name";         # Remove this variable if customer name will be passed in
$thanks = "Page to display after sending the message";
$FileName = "Name of file to send";
$name = "Your Name";
$from_addr = "me@here.com";
$Cc = "them@there.com"; # Used to send extra copies of the message
$Bcc = ""; # Similar to CC, but extra email addresses are not visible in message header
$semi_rand = md5(time()); 
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
$subject = "$c_name, here's the product you ordered.";
$body = "" ;
$fp = fopen($FileName,"r");
$data = fread($fp, filesize($FileName));
fclose($fp);
$FileContents = chunk_split(base64_encode($data));
$headers = "From: $name <$from_addr>\nReply-To: <$from_addr>\n";
if($Cc != "") 
  { 
    $headers .= "Cc: $cc\n"; 
  } 
if($Bcc != "") 
  { 
    $headers .= "Bcc: $bcc\n"; 
  } 
$headers = "Return-Path: <$from_addr>\nX-Mailer: PHP\n";
$headers .= "MIME-Version: 1.0\n";
$headers .= "Content-Type: multipart/mixed; boundary=\"{$mime_boundary}\"; Content-Transfer-Encoding: 7bit\n";

$headers .= "This is a multi-part message in MIME format.\n\n" .
         "--{$mime_boundary}\n" .
         "Content-Type:text/plain; charset=\"iso-8859-1\"\n" . 
         "Content-Transfer-Encoding: 7bit\n\n";

$body .= "Hello $c_name,\n\nDo not delete this message!\n" .
         "It contains the product you just paid for.\n\n"; 

$body .= "--{$mime_boundary}\n" . 
         "Content-Type: application/zip; name=\"{$FileName}\"\n" . 
         "Content-Transfer-Encoding: base64\n\n" . 
         $FileContents . "\n\n" . 
         "--{$mime_boundary}--\n";
if ($to != "") { mail("$to","$subject","$body","$headers"); }
header("Location: $thanks"); die();
?>