PHP redirect after 5 seconds

Question

How do I redirect page with PHP after 5 seconds to file register.php? No Javascript or other code, just plain PHP.

Is it possible? How do I do it? I've seen Location: header.

Answer 1

Use header Refresh. It is simple:

header("Refresh:5; url=register.php");

It should work, make sure no output is before this header.

Answer 2

You have a few options:

1. Refresh Header

   header("Refresh:5; url=register.php");
   

2. Sleep then Location Header

   sleep(5);
   header("Location: register.php");
   

The first option is best, the sleep in the 2nd is blocking and could be used to DDos your service.