How do i send atachments to an email

Hi i would like to send an attachments via email how can i do that?

here is my code

[code=php]<?php
$Name = $_POST[‘uname’];

$Designation = $_POST[‘designation’];

$Company = $_POST[‘company’];

$Phone = $_POST[‘phoneno’];

$Demo = $_POST[‘demo’];

$to = ‘[email protected]’;
$subject = “Mail from: $Name”;
$message = “Name: $Name nDesignation: $Designation nCompany: $Company nPhone No: $Phone nDemo Required For: $Demo”;

$headers = “From: $Email”;

mail($to, $subject, $message, $headers);
?[/code]

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