<?php
// SET THIS to the email address where you want to receive customer mobile numbers.
$recipient = 'contact@aquaalkaline.in';
if ($_SERVER['REQUEST_METHOD'] !== 'POST') { header('Location: contact.html'); exit; }
function clean_input($value) { return trim(preg_replace('/[\r\n]+/', ' ', (string)$value)); }
$name = clean_input($_POST['name'] ?? 'Not provided');
$phone = clean_input($_POST['phone'] ?? '918919180117');
$service = clean_input($_POST['service'] ?? 'Service booking');
$message = clean_input($_POST['message'] ?? '');
if (!preg_match('/^[0-9+ -]{8,20}$/', $phone)) { http_response_code(400); exit('Please go back and enter a valid mobile number.'); }
$subject = 'New Aqua Alkaline enquiry: ' . $service;
$body = "A new website enquiry was received.\n\nName: $name\nMobile number: $phone\nService / enquiry: $service\nMessage: $message\n\nSent from the Aqua Alkaline website.";
$headers = "From: Website Enquiry <no-reply@" . ($_SERVER['HTTP_HOST'] ?? 'yourdomain.com') . ">\r\n";
$headers .= "Reply-To: $recipient\r\n";
@mail($recipient, $subject, $body, $headers);
header('Location: booking-success.html');
exit;
?>