-[RESOLVED]- Header. Give me response.redirect anyday.. Can you turn me back?

[DigitalMyth]

<?php
   switch ($_GET["action"]) {
       case "auth":
	   
	        echo "you are at auth";
       
	   break;
	   
       case "sum": 
	   
	   	   echo "you are at sum";
       
	   break;
	   
       case "phpinfo": 
	   
	   	   phpinfo();
	   
       break;
       default: 
	   	   header( 'location:http://localhost:1987/php_dev/index.php?action=auth' );
	   exit;
   }
?>

Ok, heres the output.


Notice: Undefined index: action in C:\Program Files\IIS\Inetpub\wwwroot\Site\php_dev\index.php on line 2

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\IIS\Inetpub\wwwroot\Site\php_dev\index.php:2) in C:\Program Files\IIS\Inetpub\wwwroot\Site\php_dev\index.php on line 21

There is NOTHING outputting before the header so why is it complain.

As you can tell i'm trying to transfer from asp.net to php because the servers are cheaper.

So why is this header throwing a wobbly and what is the equal to response.redirect() of asp.net the one that you can redirect at ANY point in your script. PS. META tags are to messy.