What are the advantages of using a Mailer class over the built-in mail() function in PHP when sending confirmation emails with links?

When sending confirmation emails with links in PHP, using a Mailer class over the built-in mail() function offers several advantages. The Mailer class provides a more object-oriented approach to sending emails, allowing for easier customization and management of email templates. It also typically includes features like HTML email support, attachment handling, and SMTP authentication, which can be useful for sending confirmation emails with links securely and reliably.

// Using a Mailer class to send confirmation emails with links
require 'vendor/autoload.php'; // Include the Mailer class library

// Create a new instance of the Mailer class
$mailer = new Mailer();

// Set the email content, including the confirmation link
$emailContent = '<p>Click the following link to confirm your email address: <a href="https://www.example.com/confirm.php?token=123456">Confirm Email</a></p>';

// Send the email using the Mailer class
$mailer->sendEmail('recipient@example.com', 'Confirmation Email', $emailContent);