Sending email using PHP/SMTP on Hostgator command line

If you want to send email from Hostgator command line there here is the working sample.
Just replace from email id, to email id, host,username and password.

<?php
require_once "Mail.php";

$from = "contactus@mysite.com";
$to = "to email id";
$subject = "this is the message from your domain";
$body = "give your message body here";
$host = "mail.mysite.com";
$username = "contactus+mysite.com";
$password = "pass123";
$headers = array ('From' => $from,
  'To' => $to,
  'Subject' => $subject);
$smtp = Mail::factory('smtp',
  array ('host' => $host,
    'auth' => true,
    'username' => $username,
    'password' => $password));
$mail = $smtp->send($to, $headers, $body);
if (PEAR::isError($mail)) {   echo(" " . $mail->getMessage() . " ");
} else {   echo("Message Sent successfully"); }
?>