Redirecting Query strings

[defeated]

I noticed that one of my pages is incorrectly indexed by google.... presumably I added a link badly somewhere.

 

The problem page request

mypage.php?page=

As you can see there is no value for the page variable.

 

It should read

mypage.php?page=contact

 

If I try to redirect like so...

RewriteRule ^mypage.php?page= mypage.php?page=contact

It ends up in a loop.  That makes sense but I can't figure out how to do it.  Any resident geniuses able to help me out here?

 

Unfortunately the incorrect version is the one that google has indexed which has resulted in the page title showing up as the default " Uh oh, somethings wrong around here

". Shame because it's at number one in google for a specific search term.  I have blocked in in my robots.txt and added it for removal but it would be nicer to have a redirect.

[gffg4574fghsDSGDGKJYM]

You can use php to redirect it if the page is invalid like this :

 

$validpage = array('home', 'info', 'contact');
if (!(in_array($_GET['page'], $validpage)))
{
  header("HTTP/1.0 301 Moved Permanently");
  header('Location: http://www.example.com/');
  die();
}

 

Which is a good security pratice too preventing any bad input (like SQL Injection).

[Ken2k7]

I don't get how that RewriteRule would result in a loop. ???

 

Anyone care to explain?