Prevent empty string on query if viewing root

Question

I use the following for getting the current URL in PHP:

$pageURL = $_SERVER["REQUEST_URI"];

return $pageURL;

This is used in my links to create eg /login?continue=/page/i/want

However when I'm viewing the home page I will get /login?continue= how do I force it to become /login?continue=/ when viewing the home page??

I tried this:

if($pageURL == '')
    $pageURL = '/';

but that didn't force the query string :/

Any ideas? Thanks

Answer 1

Try something like this, it will work only if the url has one "=" only:

$url = $_SERVER["REQUEST_URI"];
$arr = explode("=", $url);
if(empty($arr[1])) {
   $url .="/";
}
echo $url;

Hope it helps