<?php
class DB {
var $user, $pass, $host, $dbname;
var $db;
var $res;

function DB($user, $pass, $host, $dbname) {
  $this->user = $user;
  $this->pass = $pass;
  $this->host = $host;
  $this->dbname = $dbname;
  $this->connect();
}

function connect() {
  $this->db = mysqli_connect($this->host, $this->user, $this->pass)
    or $this->error("Verbindungsaufbau fehlgeschlagen");
  mysqli_select_db($this->db, $this->dbname);
}

function error($msg) {
  die($msg . ": " . @mysqli_error($this->db));
}

function query($query) {
  $this->res = mysqli_query($this->db, $query)
    or $this->error("Fehler bei Datenbankanfrage");
}

function escape_string($string) {
  return mysqli_real_escape_string($this->db, $string);
}

function numObjects() {
  return mysqli_num_rows($this->res);
}

function getNextObject() {
  if (!$this->res) {
    return;
  }
    return mysqli_fetch_object($this->res);
  }
}


?>