What is the purpose of the pear mime mail class in PHP?

The purpose of the pear mime mail class in PHP is to simplify the process of sending MIME email messages, which allows for the inclusion of attachments, HTML content, and other advanced features in emails. By using this class, developers can easily create and send complex email messages without having to manually handle the MIME encoding and formatting.

<?php
require_once "Mail.php";
require_once "Mail/mime.php";

$from = "sender@example.com";
$to = "recipient@example.com";
$subject = "Test Email with Attachment";

$headers = array(
    'From' => $from,
    'To' => $to,
    'Subject' => $subject
);

$mime = new Mail_mime();
$mime->setTXTBody("This is a test email with attachment.");

$file = "/path/to/attachment.pdf";
$mime->addAttachment($file, 'application/pdf');

$body = $mime->get();
$headers = $mime->headers($headers);

$mail = Mail::factory('mail');
$mail->send($to, $headers, $body);
?>