example of swiftmailer usage

swiftmailer-example.php

<?php

define('SITE_EMAIL', 'no-reply@example.com');
define('SITE_NAME', 'My Project');

function send_password_reset($email, $name, $resetlink) {

	require_once( 'swiftmailer/swift_required.php' );

	$subject = 'Resetting your password for ' . SITE_NAME;
	
	$text_body = "Hello,\n\nTo reset your password, visit " . $resetlink;

	$html_body = '<p>Hello,</p>
		<p>To reset your password, click here:</p>
		<p>
			<a href="' . $resetlink . '"
				style="-webkit-text-size-adjust: none; background: #6ec800; border-color: #6ec800; 
				border-style: solid; border-width: 10px 18px; box-sizing: border-box; color: #000;
				display: inline-block; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
				text-decoration: none;">
				Reset Password
				</a>
		</p>';

	$transport = Swift_MailTransport::newInstance();
	$mailer = Swift_Mailer::newInstance($transport);

	// Create the message
	$message = Swift_Message::newInstance();

	// Give the message a subject
	$message->setSubject($subject);

	// Set the From address with an associative array
	$message->setFrom( array( SITE_EMAIL => SITE_NAME ) );

	// Set the To addresses with an associative array
	$message->setTo( array( $email => $name ) );

	// Set the HTML version
	$message->setBody($html_body, 'text/html');

	// Add alternative parts with addPart() (alternative plain text version)
	$message->addPart($text_body, 'text/plain');

	$result = $mailer->send($message);
	
	if ( $result ) {
		// send worked
		return TRUE;
	}
	else {
		// failure  ($result == 0)
		return FALSE;
	}
}