Clases.kernel.php

<?php

/*
 * Copyright (C) 2013 Finley Siebert
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

class Habbo {
    public function database($h, $u, $p, $db){
        $this->conn = new mysqli($h,$u,$p,$db); // So i don't have to use global.
    }
    public function url($url){
        $this->url = $url;
        return $this->url;
    }
    public function checkData($un, $pw) {

        $this->query = $this->conn->query("SELECT * FROM users WHERE username = '$un' AND password = '$pw'");
        if($this->query->num_rows == 1) {
            $_SESSION['id'] = $un;
            header('location: '. $this->url .'me');
            $ip = $_SERVER['REMOTE_ADDR'];
            $this->conn->query("UPDATE users SET ip_last = '$ip' WHERE username = '$un'");
        } else {
            echo "<div class='message error'>Wrong credintials</div>";
        }
    }

    public function generateTicket(){
        $this->sessionKey = 'ST-'.rand(9,999).'-'.substr(sha1(time()).'-'.rand(9,9999999).'-'.rand(9,9999999).'-'.rand(9,9999999),0,33);
        return $this->sessionKey;
    }

    public function registerUser($username, $password, $email, $ticket){
        $db_errors = array();

        $this->query = $this->conn->query("SELECT * FROM users WHERE username = '$username'");
        if($this->query->num_rows == 1){
            $db_errors[] = '<div class="error message">Username already in use</div>';
        }
        $this->check_email = $this->conn->query("SELECT * FROM users WHERE email = '$email'");
        if($this->check_mail->num_rows == 1 ){
           $db_errors[] = '<div class="error message"> Email already in use </div>';
        }
        foreach($db_errors as $db_e){
            echo '<div class="error message">'. $db_e .'</div>';
        }

        if(count($db_errors) == 0){
            $ip = $_SERVER['REMOTE_ADDR'];
            $this->conn->query("INSERT INTO users(username, password, mail, auth_ticket,look,motto,ip_reg) VALUES('$username', '$password', '$email', '$ticket', 'hr-115-42.hd-190-1.ch-215-62.lg-285-91.sh-290-62', 'Welcome to Habbo!','$ip')");
            $_SESSION['id'] = $username;
            header('location: '. $this->url .'me');
        }
    }


}