301 redirect infinite loop

[jwwceo]

hello,

 

google is indexing a page in my site which is a nonsense page, with a blank GET value like this:

 

home.php?category=

 

where Category is NULL. It just shows my home page without doing anything.

 

I want to try and redirect this to my home page, to give the home page the most SEO power, so I wrote the following script:

 

if ($category == '0' || $category == NULL){
unset($category);

header("HTTP/1.1 301 Moved Permanently");
header("Location: home.php");

 

But this just sets my home page into an infinite loop, where the page trying to be displayed is home.php?category=

 

Any ideas why that GET value is being preserved.

 

James

[Mr Camouflage]

Because category is always null. You need to check if $_GET['category'] is set and is null then redirect. If its not set do not redirect.  Also unset($category); is redundant.

[Mr Camouflage]

Also, you need to exit(); right after the header command, other wise the rest of your code will still be executed.