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

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<?php
require_once 'Zend/Service/Technorati/Result.php';


abstract class Zend_Service_Technorati_ResultSet implements SeekableIterator
{
    protected $_totalResultsAvailable;

    protected $_totalResultsReturned;

    //TODO public $firstResultPosition;


    protected $_results;

    protected $_dom;

    protected $_xpath;

    protected $_xml;

    protected $_currentIndex = 0;


    public function __construct(DomDocument $dom, $options = array())
    {
        $this->_init($dom, $options);

        // Technorati loves to make developer's life really hard
        // I must read query options in order to normalize a single way
        // to display start and limit.
        // The value is printed out in XML using many different tag names,
        // too hard to get it from XML

        // Additionally, the following tags should be always available
        // according to API documentation but... this is not the truth!
        // - querytime
        // - limit
        // - start (sometimes rankingstart)

        // query tag is only available for some requests, the same for url.
        // For now ignore them.

        //$start = isset($options['start']) ? $options['start'] : 1;
        //$limit = isset($options['limit']) ? $options['limit'] : 20;
        //$this->_firstResultPosition = $start;
    }

    protected function _init(DomDocument $dom, $options = array())
    {
        $this->_dom     = $dom;
        $this->_xpath   = new DOMXPath($dom);

        $this->_results = $this->_xpath->query("//item");
    }

    public function totalResults()
    {
        return (int) $this->_totalResultsReturned;
    }


    public function totalResultsAvailable()
    {
        return (int) $this->_totalResultsAvailable;
    }

    // abstract public function current();

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

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

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

    public function seek($index)
    {
        $indexInt = (int) $index;
        if ($indexInt >= 0 && $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;
    }

    public function getXml()
    {
        return $this->_dom->saveXML();
    }

    public function __sleep() {
        $this->_xml     = $this->getXml();
        $vars = array_keys(get_object_vars($this));
        return array_diff($vars, array('_dom', '_xpath'));
    }

    public function __wakeup() {
        $dom = new DOMDocument();
        $dom->loadXml($this->_xml);
        $this->_init($dom);
        $this->_xml = null; // reset XML content
    }
}