Page or URL function?

["Miller, Terion" <tmiller@xxxxxxxxxxxxxxxxxxxx>]

I've been searching php.net for a function to do this:

   if page_url('browse.php') {

    $default = "A";

                                                      }

$letter = isset($_GET['letter'])? $_GET['letter'] :"$default" ;

else
 {
                
    $letter = isset($_GET['letter'])? $_GET['letter'] :"" ;

                                                    }

I want to say if the page is browse, default to the A listings, if the page
is not browse show no default listings (because there is other data on the
page and I don't want this to output)

I thought there was url functions....am I calling it something different?
Terion


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