If url variable is empty redirect to home page

Question

I am not able to get this to work correctly!!

I have a view.php page that uses a variable of \'ID\' to retrieve db info.

So my url is like this:

Answer 1

Try using empty():

if(empty($_GET['id'])) 
{ 
  header('Location: /');
  exit; 
}

Answer 2

Another way:

if(strlen($_GET['id'])>0) { 
 header('Location: /');
 exit; 
}