contact.php

<?php
// Check for empty fields
if (empty($_POST['lastname']) ||
    empty($_POST['name']) ||
    empty($_POST['email']) ||
    empty($_POST['object']) ||
    empty($_POST['message']) ||
    !filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
    echo "No arguments Provided!";
    return false;
}

$lastname      = strip_tags(htmlspecialchars($_POST['lastname']));
$name          = strip_tags(htmlspecialchars($_POST['name']));
$email_address = strip_tags(htmlspecialchars($_POST['email']));
$object        = strip_tags(htmlspecialchars($_POST['object']));
$message       = strip_tags(htmlspecialchars($_POST['message']));

// Create the email and send the message
$to            = 'rayan.mahanna@gmail.com'; // Add your email address inbetween the '' replacing yourname@yourdomain.com - This is where the form will send a message to.
$email_subject = "Website Contact Form:  $object";
$email_body    = "You have received a new message from your website contact form.\n\n" . "Here are the details:\n\nName: $name\n\nEmail: $email_address\n\nMessage:\n$message";
$headers       = "From: noreply@yourdomain.com\n"; // This is the email address the generated message will be from. We recommend using something like noreply@yourdomain.com.
$headers       .= "Reply-To: $email_address";
mail($to, $email_subject, $email_body, $headers);
return true;
?>