RSS Error di swarakalibata Ci 1.2

Waalaikumsalam,.. 
Coba pada bagian ini :
 
<title>".cetak_meta($row['judul'],0,255)."</title>
<link>".base_url()."berita/detail/$row[judul_seo]</link>
<image>".base_url()."berita/detail/$row[gambar]</image>
 <description>".strip_tags(html_entity_decode($isi))."
 
ubah menjadi :
 
<title>".simplexml_load_file($row['judul'])."</title>
<link>".base_url()."berita/detail/$row[judul_seo]</link>
<image>".base_url()."berita/detail/$row[gambar]</image>
 <description>".strip_tags(simplexml_load_file($isi))."

Assalamualaikum,.. error nya hilang, cuma isi berita di deskripsi nya tidak muncul.

Assalamualaikum,.. 
masih belum solve nih

solved dengan cara ini.
ganti semua isi file rss.php yang ada di view/administrator dengan kode di bawah ini 
 
<?php
  $iden = $this->db->query("SELECT * FROM identitas")->row_array();
  $logo = $this->db->query("SELECT * FROM logo")->row_array();
  $sql  = $this->db->query("SELECT * FROM berita ORDER BY id_berita DESC LIMIT 10");
  $file = fopen("rss.xml", "w");
  fwrite($file, '<?xml version="1.0"?> 
  <rss version="2.0">');
 
  fwrite($file, "<channel> 
				<title>$iden[nama_website] RSS</title> 
				<link>$iden[url]</link> 
				<image>
				<url>$iden[url]/asset/logo/logo-footer.png</url>
				<link>$iden[url]</link>
				<width>100</width>
				<height>35</height>
				</image>
				<language>id-id</language>");
 
  foreach ($sql->result_array() as $r){
  $isi_berita = htmlentities(strip_tags(nl2br($r['isi_berita']))); 
  $isi   = substr($isi_berita,0,500); 
  $isi   = phpmu(substr($isi_berita,0,strrpos($isi," "))); 
 
  fwrite($file, "<item>
                 <title>".phpmu($r['judul'])."</title>
                 <link>$iden[url]/berita/detail/$r[judul_seo]</link>
                 <image>$iden[url]/asset/foto_berita/$r[gambar]</image>
                 <description>$isi ...</description>
                 </item>");}
 
  fwrite($file, "</channel></rss>");
  fclose($file);
  ?>

Assalamualaikum,.. oke mas siap,..