In PHP, what is the recommended approach for processing form data and generating dynamic content for email messages, taking into account security and compatibility with modern PHP versions?

When processing form data and generating dynamic content for email messages in PHP, it is recommended to use the PHPMailer library. PHPMailer provides a secure and easy way to send emails with dynamic content while handling attachments, HTML emails, and more. It is compatible with modern PHP versions and helps prevent common security vulnerabilities such as email injection attacks. 

<?php
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

require 'vendor/autoload.php';

// Create a new PHPMailer instance
$mail = new PHPMailer();

// Server settings
$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->SMTPAuth = true;
$mail->Username = 'your@example.com';
$mail->Password = 'yourpassword';
$mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
$mail->Port = 587;

// Recipients
$mail->setFrom('from@example.com', 'Your Name');
$mail->addAddress('recipient@example.com', 'Recipient Name');

// Content
$mail->isHTML(true);
$mail->Subject = 'Subject of the email';
$mail->Body = 'This is the HTML message body <b>in bold!</b>';

// Send the email
if(!$mail->send()) {
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Message has been sent';
}
?>

Keywords

form data processing dynamic content generation email messages security modern PHP versions

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