<?php
	require_once 'conf.php';
	class users{
		public $name;
		public $pass;
		function set_name_and_pass () {
			$this->$name = htmlspecialchars($_POST['login']);
			$this->$pass = htmlspecialchars($_POST['pass']);
		}
		function insert_new_user () {
			$stmt = $pdo->prepare("INSERT INTO users (login,pass) VALUES (:log,:pass)");
			$stmt->bindParam(':log',$name);
			$stmt->bindParam(':pass',$pass);
			$stmt-execute();
		}
	}
	$user = new users;
	$user->set_name_and_pass();
	$user->insert_new_user();
?>
<form action="" method="post">
	<input type="text" name="login" required placeholder="login"><br>
	<input type="password" name="pass" required placeholder="pass"><br>
	<input type="submit" name="submit" value="ok">
</form>