Fixed sitemap to find stylesheet, relative urls

sitemap.php

@@ -14,13 +14,27 @@
     priority: optional, relative to other pages, from 0.0 to 1.0
 */
 header('Content-Type: text/xml; charset=utf-8');
+$stylesheet_url = $config['SITEMAP_STYLESHEET'] ?? '/sitemap/sitemap.xsl';
 
-$fileglob = glob('*.php');
-$base = "{$_SERVER['REQUEST_SCHEME']}://{$_SERVER['SERVER_NAME']}";
+# Server Settings. Will select defaults for CLI usage
+$document_root = $_SERVER['DOCUMENT_ROOT'] ?: realpath(__DIR__.'/..');
+$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
+$host = $_SERVER['SERVER_NAME'] ?? 'localhost';
+$base_url = $scheme . '://' . $host;
 
+# Check for stylesheet before emitting xsl record
+if (file_exists($document_root.$stylesheet_url)) {
+   $stylesheet = "<?xml-stylesheet type=\"text/xsl\" href=\"$stylesheet_url\"?" . ">\n";
+} else {
+   error_log(__FILE__ . "$name cannot be found in $document_root");
+}
+
+# Find relative folder and scan for docs
+$article_path = str_replace($document_root, '', dirname(__FILE__));
+$fileglob = glob('*.{php,md}',GLOB_BRACE);
 ?>
 <?xml version="1.0" encoding="UTF-8"?>
-<?xml-stylesheet type="text/xsl" href="/sitemap.xsl"?>
+<?= $stylesheet ?>
 <urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
   xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd http://www.google.com/schemas/sitemap-image/1.1 http://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"
@@ -30,6 +44,7 @@ $base = "{$_SERVER['REQUEST_SCHEME']}://{$_SERVER['SERVER_NAME']}";
 foreach($fileglob as $file) {
    if ($file === 'index.php') continue;
    if ($file === 'sitemap.php') continue;
+   if ($file === 'README.md') continue;
    
 #   $page = file_get_contents($file);
 #   $update = stat($file)->modified_date;
@@ -37,7 +52,7 @@ foreach($fileglob as $file) {
    $update = '2025-05-07';
 ?>
   <url>
-    <loc><?= $base ?>/articles/<?= $file ?></loc>
+    <loc><?= $base_url . $article_path . '/' . $file ?></loc>
     <lastmod><?= $update ?></lastmod>
   </url>
 <?php