<?php
  
  // sitemap generator class
  class Sitemap
  {
    // constructor receives the list of URLs to include in the sitemap
    function Sitemap($items\; =\; array())\; \{$this->_items = $items;\; \}$// add a new sitemap item  
    function addItem(url, 
                     $lastmod\; =\; \text{'}\text{'},$changefreq = '', 
                     $priority\; =\; \text{'}\text{'},$additional_fields = array())
    {
      $this->\_items[]\; =\; array\_merge(array(\text{'}loc\text{'}\; =>$url, 
                                          'lastmod' => $lastmod,\; \text{'}changefreq\text{'}\; =>$changefreq, 
                                          'priority' => $priority),$additional_fields);
    }
  
    // get Google sitemap  
    function getGoogle()
    {
      ob_start();
      header('Content-type: text/xml');
      echo '<?xml version="1.0" encoding="UTF-8"?>';
      echo '<urlset xmlns="http://www.google.com/schemas/sitemap/0.84">';
      foreach ($this->\_items\; as$i)
      {
        echo '<url>';
        foreach ($i\; as$index => $\_i)\; \{\; if\; (!$_i) continue;
          echo "<$index>"\; .$this->_escapeXML(index>";
        }
        echo '</url>';
      }
      echo '</urlset>';
      return ob_get_clean();  
    }  
  
    // get Yahoo sitemap
    function getYahoo()
    {
      ob_start();
      header('Content-type: text/plain');
      foreach ($this->\_items\; as$i) 
      {
        echo $i[\text{'}loc\text{'}]\; .\; "\backslash n";\; \}\; return\; ob\_get\_clean();\; \}$// escape string characters for inclusion in XML structure
    function _escapeXML(str) 
    { 
      $translation\; =\; get\_html\_translation\_table(HTML\_ENTITIES,\; ENT\_QUOTES);\; foreach\; ($translation as $key\; =>$value) 
      {
        $translation[$key] = '&#' . ord($key)\; .\; \text{'};\text{'};\; \}$translation[chr(38)] = '&';   
      return preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/","&#38;" , 
                          strtr($str,$translation)); 
    } 
  }
  ?>