<?php

class Mysqli{

private $db_host;
private $db_user;
private $db_pass;
private $db_name;

public function __construct($db_host, $db_user, $db_pass, $db_name){
    $this->$db_host = $db_host;
    $this->$db_user = $db_user;
    $this->$db_pass = $db_pass;
    $this->$db_name = $dn_name;
}