Edit

[EDIT] FILE: submit.php

<?php
session_start();
error_reporting(E_ALL);
ini_set('display_errors', 1);

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'vendor/autoload.php';

// === One enquiry per IP per 4 hours ===
$ip = $_SERVER['REMOTE_ADDR'];
$log_file = __DIR__ . '/ip_log.txt';
$ip_records = file_exists($log_file) ? file($log_file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) : [];

$current_time = time();
$cleaned_records = [];
$allowed = true;

foreach ($ip_records as $record) {
    list($logged_ip, $timestamp) = explode('|', $record);

// Keep only records within last 4 hours (1800 seconds)
    if ($current_time - (int)$timestamp < 1800) {
        $cleaned_records[] = $record;

if ($logged_ip === $ip) {
            $allowed = false;
        }
    }
}

if (!$allowed) {
    echo "<script>alert('You can only submit once every half and hours. Please be patient.'); window.location.href = 'contact.php';</script>";
    exit();
}
// === Proceed only if allowed and POST ===
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Sanitize and retrieve form fields
    $name         = trim(strip_tags($_POST['name'] ?? ''));
    $email        = trim(strip_tags($_POST['email'] ?? ''));
    $mobile       = trim(strip_tags($_POST['phone'] ?? ''));

$subject      = trim(strip_tags($_POST['subject'] ?? ''));
    $message_text = trim(strip_tags($_POST['message'] ?? ''));

// === Email via PHPMailer ===
    $mail = new PHPMailer(true);
    try {
        $mail->isSMTP();
        $mail->Host       = 'smtp.gmail.com';
        $mail->SMTPAuth   = true;
        $mail->Username   = 'equiry.adjointinfocom@gmail.com';
        $mail->Password   = 'xueo xljn udct uasw'; // Use Gmail App Password
        $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
        $mail->Port       = 587;

$mail->setFrom('equiry.adjointinfocom@gmail.com', 'Website Enquiry');
        $mail->addAddress('info@adjointinfocom.com');
        // $mail->addAddress('designer.adjoint@gmail.com');

$mail->isHTML(true);
        $mail->Subject = 'You have received an enquiry!';

$mail->Body = '
        <html>
        <head>
        <style>
    /* Reset some defaults */
    body, table, td, a { -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; }
    table, td { mso-table-lspace: 0pt; mso-table-rspace: 0pt; }
    img { -ms-interpolation-mode: bicubic; }

body { margin: 0; padding: 0; font-family: Arial, sans-serif; background-color: #f4f4f4; }
    .email-container { max-width: 600px; margin: 20px auto; background: #ffffff; border-radius: 8px; overflow: hidden; box-shadow: 0 0 10px rgba(0,0,0,0.1); }
    .header { background: #007BFF; color: #ffffff; padding: 20px; text-align: center; }
    .header h1 { margin: 0; font-size: 24px; }
    .content { padding: 20px; color: #333333; line-height: 1.5; }
    .content table { width: 100%; border-collapse: collapse; margin-top: 10px; }
    .content td { padding: 8px; border: 1px solid #dddddd; }
    .content td:first-child { font-weight: bold; background-color: #f9f9f9; width: 30%; }
    .footer { text-align: center; padding: 15px; font-size: 12px; color: #777777; background: #f4f4f4; }
    @media screen and (max-width: 600px) {
        .email-container { width: 100% !important; }
        .content td { display: block; width: 100% !important; }
        .content td:first-child { background-color: transparent; font-weight: bold; }
    }
</style>
        </head>

<body>
    <div class="email-container">
        <div class="header">
            <h1>New Enquiry Received</h1>
        </div>
        <div class="content">
            <p>You have received a new enquiry from your website:</p>
            <table>
                <tr><td>Name</td><td>' . htmlspecialchars($name) . '</td></tr>
                <tr><td>Email</td><td>' . htmlspecialchars($email) . '</td></tr>
                <tr><td>Phone</td><td>' . htmlspecialchars($mobile) . '</td></tr>
                <tr><td>Subject</td><td>' . htmlspecialchars($subject) . '</td></tr>
                <tr><td>Message</td><td>' . nl2br(htmlspecialchars($message_text)) . '</td></tr>
            </table>
        </div>
        <div class="footer">
            &copy; ' . date("Y") . ' Adjoint Infocom PVT LTD. All rights reserved.
        </div>
    </div>
</body>
        </html>';

$mail->send();

// Log this IP to prevent next submission within 1 hour
        $cleaned_records[] = $ip . '|' . $current_time;
        file_put_contents($log_file, implode(PHP_EOL, $cleaned_records) . PHP_EOL, LOCK_EX);

echo '<script>window.location.href = "thank-you.php";</script>';
        exit();
    } catch (Exception $e) {
        $_SESSION['message'] = "Mailer Error: " . $mail->ErrorInfo;
        header("Location: index.php");
        exit();
    }
}

CANCEL