What are some recommended PHP libraries or packages for handling PDF attachments in emails?

When handling PDF attachments in emails using PHP, one recommended library is PHPMailer. PHPMailer allows you to easily attach PDF files to emails and send them using SMTP or mail() function. Another option is TCPDF, which is a PHP library for creating PDF documents on-the-fly. These libraries provide functions to attach PDF files to emails, making it simple to send PDF attachments in emails using PHP.

// Using PHPMailer to attach PDF file to email
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'vendor/autoload.php';

$mail = new PHPMailer(true);

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

    //Attachments
    $mail->addAttachment('path/to/file.pdf');

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

    //Content
    $mail->isHTML(true);
    $mail->Subject = 'Subject';
    $mail->Body = 'Email body content';

    $mail->send();
    echo 'Email sent successfully';
} catch (Exception $e) {
    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}