probleem met classes

<?php

define('GAME_IN', TRUE);
include('layout/text.php');
include('code/layout.php');
include('code/database.php');
include('code/mksession.php');
include('code/secure.php');

class zoek{
	var $zoekveld=array('game', 'review', 'preview', 'nieuws', 'screenshots', 'release datum');
	var $select;
	var $i;
	function zoek(){
		$db = new database;
		$layout = new layout;
		$login = new login;
		$secure = new secure;
		$this->i='0';
		$this->select = '<select value=\'wat\'>';
		while($this->i<5){
			$this->select.='<option>'.$this->zoekveld['$i'].'</option>';
			$this->i++;
		}
		$this->select.='</select>';
		$layout->openlayout('zoek');
		$layout->replace('select', $this->select);
		$sponsor = $layout->reText();
		$layout->openlayout('main');
		$layout->replace('content', $sponsor);
		$layout->replace('login', $login->login_form(login_username));
		$layout->replace('admin', $login->admin_panel(login_level));
		$layout->clearEmpty();
		echo $layout->reText();
	}
}
?>

<?php
 
define('GAME_IN', TRUE);
include('layout/text.php');
include('code/layout.php');
include('code/database.php');
include('code/mksession.php');
include('code/secure.php');
 
class zoek{
	var $zoekveld=array('game', 'review', 'preview', 'nieuws', 'screenshots', 'release datum');
	var $select;
	var $i;
	function zoek(){
		$db = new database;
		$layout = new layout;
		$login = new login;
		$secure = new secure;
		$this->i='0';
		$this->select = '<select value=\'wat\'>';
		while($this->i<5){
			$this->select.='<option>'.$this->zoekveld['$i'].'</option>';
			$this->i++;
		}
		$this->select.='</select>';
		$layout->openlayout('zoek');
		$layout->replace('select', $this->select);
		$sponsor = $layout->reText();
		$layout->openlayout('main');
		$layout->replace('content', $sponsor);
		$layout->replace('login', $login->login_form(login_username));
		$layout->replace('admin', $login->admin_panel(login_level));
		$layout->clearEmpty();
		echo $layout->reText();
	}
}
?>