db.class.php

<?php

class Database
   {

   function __construct($dbserver,$dbuser,$dbpassword,$dbname)
      {
      $this->dbserver=$dbserver;
      $this->dbuser=$dbuser;
      $this->dbpassword=$dbpassword;
      $this->dbname=$dbname;
      }

   function connect()
      {
      $this->conn=new mysqli($this->dbserver,$this->dbuser,$this->dbpassword,$this->dbname);
      $this->conn->set_charset("utf8");
      $this->conn->autocommit(FALSE);
      if (!$this->conn OR $this->conn->connect_errno) error(_('DB connection error!'));
      return $this->conn;
      }

   function query($query)
      {
      $result=$this->conn->query($query);
      if (!$result) error(_('DB error').' '.$this->conn->error.' '._('in').': '.$query);
      return $result;
      }

   function insertid()
      {
      return $this->conn->insert_id;
      }

}

?>