submit_query.php

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Retrieve form data
    $name = htmlspecialchars(strip_tags(trim($_POST['name'])));
    $email = htmlspecialchars(strip_tags(trim($_POST['email'])));
    $phone = htmlspecialchars(strip_tags(trim($_POST['phone'])));
    $message = htmlspecialchars(strip_tags(trim($_POST['message'])));

    // Validate the inputs (basic validation)
    if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
        die("Invalid email format");
    }

    // Prepare the email
    $to = 'atishlibun@gmail.com';
    $subject = 'New Contact Form Submission';
    $body = "Name: $name\nEmail: $email\nPhone: $phone\nMessage: $message";
    $headers = "From: $email" . "\r\n" . "Reply-To: $email";

    // Send the email
    if (mail($to, $subject, $body, $headers)) {
        echo "Message sent successfully!";
    } else {
        echo "Failed to send message. Please try again later.";
    }
} else {
    echo "Invalid request method.";
}
?>