the form PHP

<?php
		if (isset($_POST["submit"])) {

		$name = Input::get('name');
		$email = $_POST['email'];
		$message = $_POST['message'];
		$human = intval($_POST['human']);
		$from = $user->data()->email;
		$to = $thatUser->email;
		$subject = 'Message from Local Positivity Finder';

		$body ="From: $name\n E-Mail: $email\n Message: $message\n";

		// Check if name has been entered
		if (!$_POST['name']) {
			$errName = 'Please enter your name';
		}

		// Check if email has been entered and is valid
		if (!$_POST['email'] || !filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
			$errEmail = 'Please enter a valid email address';
		}

		//Check if message has been entered
		if (!$_POST['message']) {
			$errMessage = 'Please enter your message';
		}
		//Check if simple anti-bot test is correct
		if ($human !== 5) {
			$errHuman = 'Your anti-spam is incorrect';
		}

		// If there are no errors, send the email
		if (!$errName && !$errEmail && !$errMessage && !$errHuman) {
		if (mail ($to, $subject, $body)) {
			Redirect::to($us_url_root.'users/contact_success.php');
		} else {
			Redirect::to($us_url_root.'users/contact_error.php');
		}
		}
}

?>