C:/xampp/htdocs/moodle/lib/zend/Zend/Service/Amazon/ResultSet.php

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<?php

require_once 'Zend/Service/Amazon/Item.php';


class Zend_Service_Amazon_ResultSet implements SeekableIterator
{
    protected $_results = null;

    protected $_dom;

    protected $_xpath;

    protected $_currentIndex = 0;

    public function __construct(DOMDocument $dom)
    {
        $this->_dom = $dom;
        $this->_xpath = new DOMXPath($dom);
        $this->_xpath->registerNamespace('az', 'http://webservices.amazon.com/AWSECommerceService/2005-10-05');
        $this->_results = $this->_xpath->query('//az:Item');
    }

    public function totalResults()
    {
        $result = $this->_xpath->query('//az:TotalResults/text()');
        return (int) $result->item(0)->data;
    }

    public function totalPages()
    {
        $result = $this->_xpath->query('//az:TotalPages/text()');
        return (int) $result->item(0)->data;
    }

    public function current()
    {
        return new Zend_Service_Amazon_Item($this->_results->item($this->_currentIndex));
    }

    public function key()
    {
        return $this->_currentIndex;
    }

    public function next()
    {
        $this->_currentIndex += 1;
    }

    public function rewind()
    {
        $this->_currentIndex = 0;
    }

    public function seek($index)
    {
        $indexInt = (int) $index;
        if ($indexInt >= 0 && (null === $this->_results || $indexInt < $this->_results->length)) {
            $this->_currentIndex = $indexInt;
        } else {
            throw new OutOfBoundsException("Illegal index '$index'");
        }
    }

    public function valid()
    {
        return null !== $this->_results && $this->_currentIndex < $this->_results->length;
    }
}