Господа! Как подключить иконку сайта (favico)?

<?php
   $cur_host = $_SERVER["HTTP_HOST"];
   $arURL = parse_url("http://".$cur_host);
   if($arURL["scheme"]=="" && strlen($arURL["host"])>0)
      $CURR_DOMAIN = $arURL["host"];
   else
      $CURR_DOMAIN = $cur_host;
   $CURR_DOMAIN = strtolower($CURR_DOMAIN);
   if(strpos($CURR_DOMAIN, "www.", 0) != -1)
   {
      $CURR_DOMAIN = substr($CURR_DOMAIN, strpos($CURR_DOMAIN, "www.", 0) + 4, strlen($CURR_DOMAIN) - 4);
   }
   switch($CURR_DOMAIN)
   {
      case "site1.ru":
      $filename = $_SERVER["DOCUMENT_ROOT"]."/images/favicon.ico"; 
      break;
      
      case "site2.ru":
      $filename = $_SERVER["DOCUMENT_ROOT"]."/site2/favicon.ico"; 
      break;   
      
      case "site3.ru":
      $filename = $_SERVER["DOCUMENT_ROOT"]."/site3/favicon.ico"; 
      break;   
   }
        error_reporting(E_COMPILE_ERROR|E_ERROR|E_CORE_ERR­OR|E_PARSE); 
        if (file_exists($filename)) 
   { 
              $fsize = filesize($filename); 
        header("Content-Type: image/x-icon"); 
       header("Content-Length: ".$fsize); 
        $fd = fopen ($filename, "rb"); 
         $contents = fread ($fd, $fsize); 
         fclose ($fd); 
         echo $contents; 
   } 
   ob_start(); 
   session_start(); 
   $_SESSION["SESS_ADD_TO_FAVORITES"] = "Y"; 
   ob_end_clean(); 


?>