PHP-Code-Snippets

   $request_host = strtolower($_SERVER["HTTP_HOST"]);
   $request_uri = strtolower($_SERVER["REQUEST_URI"]);
   $something_changed = false;

   // don't change host, when it is already the right one
   // or when we're in test environment;
   $new_host = $request_host;
   if ( ! ( ($new_host == "testserver")  || ($new_host == "localhost")
        || ($new_host == "www.meine-domain.de") ) ) {
     $something_changed = true;
     $new_host = "www.meine-domain.de";
   }
   $new_uri = $request_uri;

   // strip trailing slashes
   if ( (strpos($new_uri,".php") > 0) 
        && ( substr ($new_uri,-1) == "/" ) ) {
     $new_uri = substr($new_uri,0,-1);
     $something_changed = true;
   }

   // ***SPECIAL*** convert underscores to hyphens
   if (strpos($new_uri,"_") > 0) { // underscores vorhanden
     $new_uri = str_replace("_","-",$new_uri);
     $something_changed = true;
   }

   if ( $something_changed ) {
     $new_request = "http://".$new_host.$new_uri;
     header("Status: 301 Moved Permanently");
     header("Location:$new_request");
     exit;  
   }
?>