How can the use of a Mailer class in PHP improve the reliability of sending emails from a contact form?

When sending emails from a contact form in PHP, using a Mailer class can improve reliability by abstracting the email sending process into a separate class. This allows for better error handling, easier maintenance, and the ability to easily switch between different email sending methods (e.g., SMTP, mail function). 

<?php
class Mailer {
    public function sendEmail($to, $subject, $message) {
        // Use a library like PHPMailer or SwiftMailer to send the email
    }
}

// Implementation example:
$mailer = new Mailer();
$mailer->sendEmail('recipient@example.com', 'Subject', 'Message body');
?>

Keywords

PHP Mailer class reliability sending emails contact form

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