Unlike the original script, the generated RSS feed can be used for podcasting. This script generates RSS feed for files in a directory folder. Put this file in a folder with files, modify the $allowed_ext variable to customize your extensions, and $feedName, $feedDesc, $feedURL, and $feedBaseURL. Then navigate to the folder on the web to see the…

index.php

<?php
header('Content-type: text/xml');
/*
        Based on https://gist.github.com/vsoch/4898025919365bf23b6f
	The generated feed can be used for podcasting.

        Runs from a directory containing files to provide an
        RSS feed that contains the list and modification times for all the
        files.
*/
$feedBaseURL = "https://example.com/podcast/";

$feedName = "My Podcast";
$feedDesc = "Feed for the my audio files in some server folder";
$feedURL = $feedBaseURL . "index.php";

$allowed_ext = ".mp4,.MP4,.mp3,.MP3";

?><<?= '?'; ?>xml version="1.0"<?= '?'; ?>>
<rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">
<channel>
<title><?=$feedName?></title>
<link><?=$feedURL?></link>
<language>en-us</language>
<itunes:subtitle>Subtitle</itunes:subtitle>
<itunes:author>Author</itunes:author>
<itunes:summary>Description</itunes:summary>
<description><?=$feedDesc?></description>
<itunes:owner>
    <itunes:name>Owner Name</itunes:name>
    <itunes:email>me@example.com</itunes:email>
</itunes:owner>
<itunes:image href="<?=$feedBaseURL?>artwork.jpg"/>
<itunes:category text="Health">
</itunes:category>
<itunes:explicit>no</itunes:explicit>
<itunes:block>Yes</itunes:block>

<?php
$files = array();
$dir=opendir("./");

$i = 0;
while(($file = readdir($dir)) !== false)
{
        $path_info = pathinfo($file);
        $ext = strtoupper($path_info['extension']);

        if($file !== '.' && $file !== '..' && !is_dir($file) && strpos($allowed_ext, $ext)>0)
        {
                $files[$i][0] = $file;
                $files[$i][1] = filectime($file);
                $files[$i][2] = filesize($file);
                $i++;
        }
}
closedir($dir);

for($i=0; $i<count($files); $i++) {
        if($files[$i][0] != "index.php") {
          if (!empty($files[$i][0])) {
                echo "<item>\n";
                echo "          <title>". $files[$i][0] ."</title>\n";
                echo "          <itunes:author>Author</itunes:author>\n";
                echo "          <itunes:subtitle>Subtitle</itunes:subtitle>\n";
                echo "          <itunes:summary>Summary</itunes:summary>\n";
                echo "          <itunes:image href=\"" . $feedBaseURL . "artwork.jpg\"></itunes:image>\n";
                echo "          <enclosure url=\"". $feedBaseURL . $files[$i][0] . "\" type=\"audio/mpeg\" length=\"" . $files[$i][2] . "\"/>\n";
                echo "          <guid>". $feedBaseURL . $files[$i][0] . "</guid>\n";
                echo "          <pubDate>". date(DATE_RSS, $files[$i][1]) ."</pubDate>\n";
                echo "          <itunes:duration>01:00:00</itunes:duration>\n";
                echo "          <itunes:explicit>no</itunes:explicit>\n";
                echo "</item>\n";
          }
        }
}
?>
</channel>
</rss>