Question

I got this variable:

$page = (int) $_REQUEST['page'];

I need some actions that will base on the above request. This will be used to the pagination script.

I mean:

if $page is 0 , then script will redirect the user to the another subpage.
The trick is that I need to redirect user ONLY in case if in his URL &page=0 is specified, otherwise, it won’t do anything.

I’ve tried this:

if( $page == 0 ) {
header("Location; xxxx");
}

but it does redirect the user even if he did not specified (or POST the page).

So , how can I do that?

Answer 1

This checks if it is actually set by user, and it is 0

if (isset($_REQUEST['page']) && $_REQUEST['page'] === 0)
{
    header('Location: xx');
}

Do 3: === to check if value is actually the number 0