php生成sitemap

1、php生成sitemap.txt

 $urls = [
       'https://upwqy.com/'
  ];
$content = implode("\n", $urls);
$localUrl = './public/sitemap.txt';

$path = dirname($outfile);
!is_dir($path) && mkdir($path, 0755, true);

$f = fopen($outfile, 'w');
fwrite($f, $content);
fclose($f);

2、php生成sitemap.xml

  // 生成sitemap.xml
        $sitemapXmlTpl = <<<'eof'
<?xml version="1.0" encoding="utf-8"?>
<urlset>
   %s
</urlset>
eof;

        $xmlTpl = <<<'eof'
<url>
   <loc>%s</loc>
   <priority>0.8</priority>
</url>
eof;

        $xml = '';
        foreach ($urls as $url) {
            $xml .= "\n".sprintf($xmlTpl, $url);
        }

        $content = sprintf($sitemapXmlTpl, $xml);
        $localUrl = './public/sitemap.xml';
        save_content_to_file($content, $localUrl);