$file = $path.$filename;

$file_size = filesize($file);

$handle = fopen($file, "r");

$content = fread($handle, $file_size);

fclose($handle);

$content = chunk_split(base64_encode($content));

$uid = md5(uniqid(time()));

$name = basename($file);

$header = "From: ".$from_name." <".$from_mail.">\r\n";

$header .= "Reply-To: ".$replyto."\r\n";

$header .= "MIME-Version: 1.0\r\n";

$header .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n";

$header .= "This is a multi-part message in MIME format.\r\n";

$header .= "--".$uid."\r\n";

$header .= "Content-type:text/plain; charset=iso-8859-1\r\n";

$header .= "Content-Transfer-Encoding: 7bit\r\n\r\n";

$header .= $message."\r\n\r\n";

$header .= "--".$uid."\r\n";

$header .= "Content-Type: application/octet-stream; name=\"".$filename."\"\r\n"; // use different content types here

$header .= "Content-Transfer-Encoding: base64\r\n";

$header .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";

$header .= $content."\r\n\r\n";

$header .= "--".$uid."--";

if (mail($mailto, $subject, " ", $header)) {

echo "mail send ... OK"; // or use booleans here

} else {

echo "mail send ... ERROR!";

echo $mailto . '<br/><br/>';

echo $subject . '<br/><br/>';

echo $header . '<br/><br/>';

}