$title = 'Add user';
		$errors = [];

		if (!empty($_POST)) {
			$fullname = $_POST["fullname"] ?? "";
			$email = $_POST["email"] ?? "";
			$user_type = $_POST["user_type"] ?? "";
			$password = $_POST["password"] ?? "";
			$password_confirmation = $_POST["password_confirmation"] ?? "";

			if (empty($fullname)) {
				$errors["fullname"] = "Fullname is required";
			} else if (!filter_var($fullname, FILTER_VALIDATE_REGEXP, array("options" => ["regexp" => "/^[a-zA-Z\s]*$/"]))) {
				$errors["fullname"] = "Fullname must only contain letters and spaces";
			}

			if (empty($email)) {
				$errors["email"] = "Email is required";
			} else if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
				$errors["email"] = "Email is not valid";
			}

			if (empty($password)) {
				$errors["password"] = "Email is required";
			} else if (strlen($password) < 8) {
				$errors["password"] = "Password must have at least 8 characters";
			} else if ($password != $password_confirmation) {
				$errors["password_confirmation"] = "The passwords do not match";
			}

			if (empty($user_type)) {
				$errors["user_type"] = "Type is required";
			} else if (!filter_var($user_type, FILTER_VALIDATE_INT, array('options' => ["min_range" => 0, "max_range"=> 2]))) {
				$errors["user_type"] = "Type is not valid";
			}
		}

		if (empty($errors)) {
			render_view('users.add', compact('title','user','errors'));
		} else {
			$user = new User(['user_id' => 0, 'email' => $email, 'password' => $password, 'fullname' => $fullname, 'type' => $user_type, 'registered_at' => date("Y-m-d H:i:s")]);

			User::add($user);
		}