<?php

function mail_attachment($filename, $path, $mailto, $from_mail, $from_name, $replyto, $subject, $message)
{
	$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()));
	$header = "From: ".$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!";
	}
}

$my_file = "somefile.zip";
$my_path = "/your_path/to_the_attachment/";
$my_name = "Olaf Lederer";
$my_mail = "my@mail.com";
$my_replyto = "my_reply_to@mail.net";
$my_subject = "This is a mail with attachment.";
$my_message = "Hallo,rndo you like this script? I hope it will help.rnrngr. Olaf";
mail_attachment($my_file, $my_path, "recipient@mail.org", $my_mail, $my_name, $my_replyto, $my_subject, $my_message);