<?php

$site="http://www.example.com/";
$page_name="quiestsurleforum.php";
header('Content-type: application/rss+xml; charset=utf-8');

print ("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
print ("<rss version=\"2.0\"\n xmlns:atom=\"http://www.w3.org/2005/Atom\"\n xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n

  <channel>\n
      <language>fr-fr</language>\n
      <atom:link href='".$site.$page_name."' rel='self' type='application/rss+xml' />
      <title>Qui est sur le forum</title>\n
      <description>Qui est sur le forum ?</description>\n
      <link>http://www.example.com/</link>\n");

//fonction get_token : http://www.ebrueggeman.com/blog/php/easily-parse-a-string/
function get_token($start_token, $end_token, $haystack, $offset = 1)
{
 
   $start = stripos($haystack, $start_token, $offset);
   $end = stripos(substr($haystack, $start), $end_token);
 
   if ($start !== false && $end !== false)
   {
      $start_pos = $start + strlen($start_token);
      $end_pos = $end - strlen($start_token);
      return substr($haystack, $start_pos, $end_pos);
   }
   return false;
}

$url = 'http://nabaztag.forumactif.fr/';
$str = file_get_contents($url);
$title = get_token('<br />Utilisateurs enregistr', '<br />Moteurs', $str);
//pour Mimi Cracra ! :
$p = urlencode($title);
$cleanTitle = ltrim($p,'%E9s+%3');

$veryCleanTitle = str_replace("A+", "", $cleanTitle);

$veryCleanTitle1 = str_replace("%3Ca+href%3D%22%2Fprofile.forum%3Fmode%3Dviewprofile%26amp%3Bu%3D", " ", $veryCleanTitle);
$veryCleanTitle2 = str_replace("%22+rel%3D%22nofollow%22%3E", " : ", $veryCleanTitle1); //the modoz rule ?
$veryCleanTitle3 = str_replace("%3C%2Fa%3E%2C+", ", ", $veryCleanTitle2);
$veryCleanTitle4 = str_replace("%3C%2Fa%3E", ",      ", $veryCleanTitle3);
$veryCleanTitle5 = str_replace("%22style%3D%22color%3A%23006600%22+class%3D%22colormod : %3Cb%3E", " : ", $veryCleanTitle4); //the modoz rule ?
//$veryCleanTitle51 = str_replace("4%22style%3D%22color%3A%23ffa34f%22+class%3D%22coloradmin%22++rel%3D%22nofollow%22%3E%3Cb%3E", " : ", $veryCleanTitle4); //THE admin rule
$veryCleanTitle6 = str_replace("%3C%2Fb%3E", "", $veryCleanTitle5);
$veryCleanTitle7 = str_replace("_", "+", $veryCleanTitle6); //the Hunta rule
$veryCleanTitle71 = str_replace("%3A", "+", $veryCleanTitle7); //the ':' rule
$veryCleanTitle72 = str_replace("%E9", "é", $veryCleanTitle71); //the 'é' rule
$veryCleanTitle8 = str_replace("%22style%3D%22color+%23ffa34f%22+class%3D%22coloradmin%22++rel%3D%22nofollow%22%3E%3Cb%3E", " : ", $veryCleanTitle72);

$n = '0';
$members = '';
do
{
   $newMember = get_token(': ', ',', $veryCleanTitle8, $offset);
   $members = $members . ',+' . $newMember;
   $digitsMember = get_token(', ', ':', $veryCleanTitle8, $offsetDigits);
   $d = strlen($digitsMember);
   $offsetDigits = $offsetDigits + $d;
   $n = strlen($newMember);
   $offset = $offset + $n + $d + 4; //+4 ???
}
while  ($n != '0');

file_get_contents("http://api.nabaztag.com/vl/FR/api.jsp?token=xxxxx&sn=yyyyy&voice=FR-Archibald&tts=Membres+actuellement+connectés+sur+le+forum" . $members, false);
print ("</channel>\n</rss>\n");
?>

$site="http://www.example.com/";
$page_name="quiestsurleforum.php";
header('Content-type: application/rss+xml; charset=utf-8');

print ("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
print ("<rss version=\"2.0\"\n xmlns:atom=\"http://www.w3.org/2005/Atom\"\n xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n

  <channel>\n
      <language>fr-fr</language>\n
      <atom:link href='".$site.$page_name."' rel='self' type='application/rss+xml' />
      <title>Qui est sur le forum</title>\n
      <description>Qui est sur le forum ?</description>\n
      <link>http://www.example.com/</link>\n");

print ("</channel>\n</rss>\n");

<rss version="2.0">
<channel>
      <language>fr-fr</language>
      <title>Qui est sur le forum</title>
      <description>Qui est sur le forum ?</description>
      <link>http://www.example.com/</link>
<?
$fic = fopen("http://nabaztag.forumactif.fr/forum.htm","r");
while (!feof($fic)) {
  $contenu .= fgets($fic, 4096);
}
fclose($fic);

preg_match_all('/<br \/>Utilisateurs enregistr.s : (.+?)<br \/>/',$contenu,$tab);
preg_match_all('|<a .+?>(<b>)?(.+?)(</b>)?</a>|',$tab[1][0],$utilisateurs);

for ($i=0;$i<count($utilisateurs[0]);$i++){
   echo "<item><title>".$utilisateurs[2][$i]."</title></item>\n";
}
?>
</channel>
</rss>