Adding new field (guestbook 2.0.2) and rss feed

<?php header("Content-Type: application/rss+xml; charset=UTF-8"); $rssfeed = '<?xml version="1.0" encoding="ISO-8859-1" ?>'; $rssfeed .= '<rss version="2.0">'; $rssfeed .= '<channel>'; $rssfeed .= '<title>DigiOz Guestbook</title>'; $rssfeed .= '<link>http://www.digioz.com</link>'; $rssfeed .= '<description>RSS Feed for DigiOz Guestbook</description>'; $rssfeed .= '<language>en-us</language>'; $rssfeed .= '<copyright>Copyright (C) 2015 DigiOz Multimedia, Inc</copyright>'; echo $rssfeed; $rssfeed = ''; define('IN_GB', TRUE); include("includes/gb.class.php"); include("includes/config.php"); $filename = "data/list.txt"; $handle = fopen($filename, "r"); if (filesize($filename) != 0) { $datain = fread($handle, filesize($filename)); fclose($handle); $out = explode("<!-- E -->", $datain); $outCount = count($out) - 1; $j = $outCount-1; for ($i=0; $i<=$outCount; $i++) { $lines[$j] = unserialize($out[$i]); $j = $j - 1; } // Counting the total number of entries (lines) in the data text file -------- $result = count($lines); $count = $result-1; // Display guestbook entries -------------------------------------------------- for ($i=0; $i<$count; $i++) { $tmpMsg = $lines[$i]->gbMessage; $tmpMsg = str_replace("<", "&lt;", $tmpMsg); $tmpMsg = str_replace(">", "&gt;", $tmpMsg); $tmpMsg = str_replace("\n", "<br />", $tmpMsg); $tmpMsg = str_replace("\r", "<br />", $tmpMsg); $rssfeed .= '<item>'; $rssfeed .= '<title>' . $lines[$i]->gbFrom . '</title>'; $rssfeed .= '<description>' . $tmpMsg . '</description>'; $rssfeed .= '<link>rss.php</link>'; $rssfeed .= '<pubDate>' . $lines[$i]->gbDate . '</pubDate>'; $rssfeed .= '</item>'; } } $rssfeed .= '</channel>'; $rssfeed .= '</rss>'; echo $rssfeed; ?>