<?php

class Zend_Paginator {
	public function __construct($dummy) { }

	public function getCurrentItem() {
		var_dump(__METHOD__);
	}
}

class Grid
{
	const DEFAULT_GRID_PAGE_SIZE = 10;
        protected $paginator = null;
        public function __construct($data){
                $this->paginator=new Zend_Paginator($data);
        }
}

$list=new Grid($dane);
$result=$list->paginator->getCurrentItem();