Added new RSVP-Form with translations

public/rsvp-submit-bkp.php

@@ -0,0 +1,58 @@
+<?php
+require __DIR__ . '/vendor/autoload.php';
+use PHPMailer\PHPMailer\PHPMailer;
+use PHPMailer\PHPMailer\Exception;
+use Dotenv\Dotenv;
+
+$dotenv = Dotenv::createImmutable(__DIR__ . '/../');
+$dotenv->safeLoad();
+
+// Get form values
+$first_name = $_POST['first_name'] ?? '';
+$last_name = $_POST['last_name'] ?? '';
+$name = trim("$first_name $last_name") ?: 'No Name';
+
+// Drinks can be an array
+$drinks = $_POST['drinks'] ?? 'None';
+if (is_array($drinks)) {
+    $drinks = implode(', ', $drinks);
+}
+
+// Allergies
+$allergies = $_POST['allergies'] ?? 'None';
+
+// Convert to UTF-8
+$name = mb_convert_encoding($name, 'UTF-8', 'auto');
+$drinks = mb_convert_encoding($drinks, 'UTF-8', 'auto');
+$allergies = mb_convert_encoding($allergies, 'UTF-8', 'auto');
+
+// PHPMailer setup
+$mail = new PHPMailer(true);
+try {
+    $mail->CharSet = 'UTF-8';
+    $mail->isSMTP();
+    $mail->Host       = $_ENV['SMTP_HOST'];
+    $mail->SMTPAuth   = true;
+    $mail->Username   = $_ENV['SMTP_USER'];
+    $mail->Password   = $_ENV['SMTP_PASS'];
+    $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
+    $mail->Port       = (int)$_ENV['SMTP_PORT'];
+
+    $mail->setFrom($_ENV['FROM_EMAIL'], $_ENV['FROM_NAME']);
+    $mail->addAddress($_ENV['TO_EMAIL']);
+
+    $mail->Subject = mb_encode_mimeheader("New Wedding Guest: $name", 'UTF-8');
+
+    $body = <<<EOD
+Name: $name
+Drinks: $drinks
+Allergies: $allergies
+EOD;
+
+    $mail->Body = $body;
+    $mail->send();
+
+    echo 'RSVP submitted successfully.';
+} catch (Exception $e) {
+    echo "RSVP could not be sent. Mailer Error: {$mail->ErrorInfo}";
+}