process_form.php

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "contact_form_db";

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

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

// Process form submission
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST["Name"];
    $email = $_POST["Email"];
    $subject = $_POST["Subject"];
    $message = $_POST["Message"];

    // Insert data into the table
    $sql = "INSERT INTO form_submissions (name, email, subject, message) VALUES ('$name', '$email', '$subject', '$message')";

    if ($conn->query($sql) === TRUE) {
        echo "Thank you for contacting us. We will get back to you soon.";
    } else {
        echo "Oops! Something went wrong. Please try again later.";
    }
}

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