<?php

class main
{
    private $db;

    function __construct($con)
    {
        $this->db = $con;
    }

    public function register($username, $email, $password)
    {
        try
        {
            $check = $this->db->prepare("SELECT * FROM users WHERE username=:user");
            $check->execute(array(
                    ":user" => $username
            ));

            if($check->rowCount() > 0) {
                echo "Username already exists";
            } else {
                $ed_password = password_hash($password, PASSWORD_DEFAULT);

                $stmt = $this->db->prepare("INSERT INTO users(username, email, password) VALUES(:user, :email, :pass)");

                $stmt->bindParam(":user", $username);
                $stmt->bindParam(":email", $email);
                $stmt->bindParam(":pass", $ed_password);
                $stmt->execute();

                echo "User was registered";
            }

        } catch(PDOException $e) {
            echo $e->getMessage();
        }
    }
}