blacklister/db.php

<?php
class db extends mysqli {
    private $host = 'localhost';
    private $user = 'ban';
    private $pass = 'Blubb123-';
    private $db   = 'ban';

    public function __construct() {
        @parent::__construct($this->host, $this->user, $this->pass, $this->db);
        if($this->connect_errno){
            die($this->connect_error);
        }
        $this->set_charset('utf8');
    }
}