<?php
use PHPMailer\PHPMailer\PHPMailer;

function sendMail(string $to, string $subject, string $body): void {
    $mail = new PHPMailer(true);
    $mail->isSMTP();
    $mail->Host       = SMTP_HOST;
    $mail->SMTPAuth   = true;
    $mail->Username   = SMTP_USER;
    $mail->Password   = SMTP_PASS;
    $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
    $mail->Port       = SMTP_PORT;
    $mail->CharSet    = 'UTF-8';
    $mail->setFrom(SMTP_FROM, SMTP_FROM_NAME);
    $mail->addAddress($to);
    $mail->Subject = $subject;
    $mail->Body    = $body;
    $mail->send();
}