<?php

     // this is a mime class for an email program using php.

class mime_mail
{
      var $parts;
      var $to;
      var $from;
      var $headers;
      var $subjects;
      var $body;

/*
 *    void mime_mail()
 *
 */

function mime_mail() {
         $this->parts = array();
         $this->to = "";
         $this->from = "";
         $this->subject = "";
         $this->body = "";
         $this->headers = "";
}

/*
 *
 *       void add_attachment(string message, [string name], [string type])
 *       Add an attachment to the mail object.
 *
 */

function add_attachment($message, $name = "", $ctype = "application/octet-stream") {
         $this->parts[] = array (
         "ctype" => $ctype,
         "message" => $message,
         "encode" => $encode,
         "name" => $name
                        );
}

/*
 *
 *       void build_message(array part=
 *       Build message parts of a multipart mail message.
 *
 */

function build_message($part) {
         $message = $part[ "message" ];
         $message = chunk_split(base64_encode($message));
         $encoding = "base64";
         return "Content-Type: ".$part[ "ctype" ].
                ($part[ "name" ]? "; name = \"".$part[ "name" ].
                "\"" : "").

                "\nContent-Transfer-Encoding: $encoding\n\n$message\n";
}

/*
 *
 *      void build_multipart()
 *      Build a multipart mail message.
 *
 */

function build_multipart() {
         $boundary = "b".md5(uniqid(time()));
         $multipart =
         "Content-Type: multipart/mixed; boundary = $boundary\n\nThis is a MIME
         encoded message.\n\n--$boundary";

         for($i = sizeof($this->parts)-1; $i >= 0; $i--)
         {
                $multipart .= "\n".$this->build_message($this->parts[$i]).
                           "--$boundary";
         }
         return $multipart.= "--\n";
}

/*
 *
 *       string get_mail()
 *       returns constructed mail.
 *
 */

function get_mail($complete = true) {
         $mime = "";
         if (!empty($this->headers))
            $mime .= $this->headers. "\n";

         if ($complete) {
            if (!empty($this->to)) {
               $mime .= "To: $this->to\n";
            }
         if (!empty($this->from))
           $mime .= "From: ".$this->from. "\n";

            if (!empty($this->subject)) {
               $mime .= "Subject: $this->subject\n";
            }
         }

         if (!empty($this->body))
            $this->add_attachment($this->body, "", "text/plain");
            $mime .= "MIME-Version: 1.0\n".$this->build_multipart();

        return $mime;
}

/*
 *
 *      void send()
 *      Send the mail message (last class function to be called.)
 *
 */

function send() {
         $mime = $this->get_mail(false);
         mail($this->to, $this->subject, "", $mime);
    }
};  //end of class.
?>