createSitemapFile

protected function createSitemapFile($file_name, $urls){
        $output_file=$file_name;
        $ret ='<?xml version="1.0" encoding="UTF-8"?>'."\n";
        $ret.='<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'."\n";
        if(count($urls)>0){
            $domain=$_SERVER['HTTP_HOST'];

            foreach($urls as $u){
                if(preg_match('/^http:/', $u['url'])){
                    if(parse_url($u['url'], PHP_URL_HOST)==$domain){
                        $ret.='<url>'."\n";
                        $ret.='<loc>'.$u['url'].'</loc>'."\n";
                        $ret.='<lastmod>'.date('Y-m-d',time()).'</lastmod>'."\n";
                        $ret.='<changefreq>'.$u['changefreq'].'</changefreq>'."\n";
                        $ret.='<priority>'.$u['priority'].'</priority>'."\n";
                        $ret.='</url>'."\n";
                    }else{
                        continue;
                    }
                }elseif($u['url']==='#'){
                    continue;
                }else{
                    $ret.='<url>'."\n";
                    $ret.='<loc>'.$this->site_link.$u['url'].'</loc>'."\n";
                    $ret.='<lastmod>'.date('Y-m-d',time()).'</lastmod>'."\n";
                    $ret.='<changefreq>'.$u['changefreq'].'</changefreq>'."\n";
                    $ret.='<priority>'.$u['priority'].'</priority>'."\n";
                    $ret.='</url>'."\n";

                }
            }
        }
        $ret.='</urlset>'."\n";
        $host=$_SERVER['HTTP_HOST'];
        if($host=='erver.ru' || preg_match('/([a-z]+).erver.ru/', $host)){
            if($host!='erver.ru'){
                $output_file=str_replace('erver.ru', $host, $output_file);
            }
        }
        $f=fopen($output_file,'w');
        fwrite($f, SiteBill::iconv(SITE_ENCODING, 'utf-8', $ret));
        fclose($f);
        chmod($output_file, 0755);
    }