process_form.php

<?php
// Database connection details
$host = 'localhost';
$username = 'root';
$password = '';
$dbname = 'edtech';

// Create a connection
$conn = new mysqli($host, $username, $password, $dbname);

// Check the connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Retrieve form data
    $name = $conn->real_escape_string($_POST['name']);
    $email = $conn->real_escape_string($_POST['email']);
    $message = $conn->real_escape_string($_POST['message']);

    // Insert the data into the database
    $sql = "INSERT INTO messages (name, email, message) VALUES ('$name', '$email', '$message')";
    
    if ($conn->query($sql) === TRUE) {
        echo "<script>
            alert('Message sent successfully!');
            window.location.href = 'index.php';
        </script>";
    } else {
        echo "<script>
            alert('Error: " . $conn->error . "');
            window.location.href = 'index.php';
        </script>";
    }
}

// Close the connection
$conn->close();
?>