pdo insert Opcje

[boosik01]

Witam. Mam problem, a mianowicie insert dodaje mi dwa pola w bazie, choć powinien dodać jedno.

O to kod:

[PHP] pobierz, plaintext 
<?php
ini_set('error_reporting', E_ALL);;
class garage
{
public $pdo ;
public $temp ;
public $player ;
private $info = array() ;
	public function __construct($pdo, $temp, $player)
	{
		$this->build = $build;
		$this->_pdo = $pdo ;
		$this->_player = $player ;
		$this->_info = $info;
		if($_GET['go'] == 'build')
		{
			$this->build() ;
		}
		try
		{
			$dis_garage =  $this->_pdo->prepare('SELECT * FROM garage WHERE id_user=?');
			$dis_garage -> bindValue(1, $this->_player->id);
			$dis_garage ->execute();
			$this->_info = $dis_garage -> fetch();
			$temp->assign("player_garage", $this->_info);
		}
		catch(PDOException $e)
		{
			$result = form_field('Błąd połączenia. Powód: ' . $e->getMessage(), 'error');
 
		}		
		$temp->display('garage.tpl');
 
	}
 
	public function build()
	{
		if($this->_player->garage == 0)
		{
			try
			{
        $db = $this->_pdo->prepare('INSERT INTO `garage`  (id_user, level, cars, max_cars) VALUES(?, ?, ?, ?)');
        $db->execute(array($this->_player->id, 1, 0, 1));
        $db-> closeCursor();
				query('update users set garage=1 where id=?', array($this->_player->id), $this->_pdo);
				return true ;
 
 
			}
			catch(PDOException $e)
			{
				$result = form_field('Błąd połączenia. Powód: ' . $e->getMessage(), 'error');
			}
		}
		else
		{
			return false ;
		}
	}
 
 
}
 
?>
[PHP] pobierz, plaintext 

z góry dzięki ;-)