send e-mail with attachement

I want to add attachements to sending e-mails (.[B]txt[/B] or .[B]sql[/B] files). What should I add/change to headers to could add attachement? ?

[code=php]
<?php

$from = “[email protected]”;
$name = “XX”;
$to = “[email protected]”;
$subject = “DB COPY”;
$HTML = “Copy of daily db.”;

function sendHTMLemail($from,$to,$subject,$HTML)
{
$headers = “From: $fromrn”;
$headers .= “MIME-Version: 1.0rn”;
$boundary = uniqid(“HTMLEMAIL”);
$headers .= “Content-Type: multipart/alternative;”.
“boundary = $boundaryrnrn”;
$headers .= “This is a MIME encoded message.rnrn”;
$headers .= “–$boundaryrn”.
“Content-Type: text/plain; charset=utf-8rn”.
“Content-Transfer-Encoding: base64rnrn”;
$headers .= chunk_split(base64_encode(strip_tags($HTML)));
$headers .= “–$boundaryrn”.
“Content-Type: text/html; charset=utf-8rn”.
“Content-Transfer-Encoding: base64rnrn”;
$headers .= chunk_split(base64_encode($HTML));

if (mail($to,$subject,””,$headers)) {
echo(“<p>Message successfully sent!</p>”);
} else {
echo(“<p>Message delivery failed…</p>”);
}
}

sendHTMLemail($from,$to,$subject,$HTML);

?>
[/code]

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