<?php
$data = '<?xml version="1.0" encoding="UTF-8"?>';
$data .= "\n<sitemapindex xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\"> ";
$data .= "\n<sitemap> ";
$data .= "\n<loc>http://www.example.com/deneme.html</loc> ";
$data .= "\n<lastmod>2004-10-01T18:23:17+00:00</lastmod> ";
$data .= "\n</sitemap> ";

$data .= "\n</sitemapindex> ";

$file = 'sitemap.xml';
$fp = fopen($file, "w+");
        if($fp){
            fwrite($fp, $data);
            fclose($fp);
        }  
?>