very basic php question

hello all,

I want to add second url to the allowed referrer. Can anyone help me.

define('ALLOWED_REFERRER', 'xxx.net/index.php?page=course-req');
if (ALLOWED_REFERRER !== '' && (!isset($_SERVER['HTTP_REFERER']) || strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER)) === false))
{
die("You can not view this page directly. Please contact .");
}

PHP:

 

copy paste the code again after that and change define to meet requirements

 

define('ALLOWED_REFERRER', 'xxx.net/index.php?page=course-req');
define('ALLOWED_REFERRER2', 'new.url/new');
if ((ALLOWED_REFERRER !== '') && (ALLOWED_REFERRER2 !== '') && (!isset($_SERVER['HTTP_REFERER']) || !(strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER2)) === false) && strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER)) === false)))
{
die("You can not view this page directly. Please contact .");
}