PHP OOP+MySQLi hjælp til insert

PHP kode 

 public function create_me($user, $pass, $email, $about, $www, $location, $fuldenavn, $adresse, $postnr, $by, $imagecode){
      $result = $this->db->query('SELECT * FROM users WHERE ip="'. $_SERVER['REMOTE_ADDR'] .'"');
      $count=0;
 
      while($row = $result->fetch_assoc()){
       if($row['ip']==$_SERVER['REMOTE_ADDR']){
     $count++;
       }
      }
 
      if($count<=10){
       $result = $this->db->query('INSERT INTO users (nick, password, email, about, datetime, day, www, ip, location, fuldenavn, adresse, postnr, by, status, imagecode)VALUES ("'. $user .'", "'. $pass .'", "'. $email .'", "'. str_replace("\n", "<br />", $about) .'", "'. date("Y-m-d H:i:s") .'", "'. date("l") .'", "'. $www .'", "'. $_SERVER['REMOTE_ADDR'] .'", "'. $location .'", "'. $fuldenavn .'", "'. $adresse .'", "'. $postnr .'", "'. $by .'", "user", "'. $imagecode .'")');
      }
     }

PHP kode 

 if(strip_tags($_POST['username']) && strip_tags($_POST['part1']) && strip_tags($_POST['part2'])){
 
 
 
     $username = strip_tags($_POST['username']);
 
     $emailen = $_POST['part1'] .'@'. $_POST['part2'];
 
     $about = strip_tags($_POST['about']);
 
     $www = strip_tags($_POST['www']);
 
     $location = strip_tags($_POST['location']);
 
     $fuldenavn = strip_tags($_POST['fuldenavn']);
 
     $adresse = strip_tags($_POST['adresse']);
 
     $postnr = strip_tags($_POST['postnr']);
 
     $by = strip_tags($_POST['by']);
 
 
 
     $htmlen = new htmlen();
 
     $funks = new funks();
 
 
     $db = new Database('localhost', 'bruger', 'password', 'database');
 
     $db->connect();
     $list = new Specieslist($db);
 
 
 
     $passet = $funks->random_gen(10);
 
     $safe_filename = $funks->random_gen(16);
 
 
 
     $mail = $funks->mail_me($emailen, "Specieslist.eu user and password", $username, $passet);
 
     $create = $list->create_me($username, $passet, $emailen, $about, $www, $location, $fuldenavn, $adresse, $postnr, $by, $safe_filename);
 
     if($mail=="true" && $create=="true"){
 
      $outputen = 'You got mail - And user is created.<br />';
 
      print $htmlen->content_div("", "User Created", $funks->datoen(date("Y-m-d H:i:s")), date("l"), $outputen);
 
 
 
      if(isset($_FILES['imagecode'])){
 
       $target = "./profilepic/".basename($safe_filename .'.jpg');
 
       if(move_uploaded_file($_FILES['imagecode']['tmp_name'],$target)){
 
       }
 
      }
 
     }
 
 
 
   }