<?php
// your code goes here
$pagename = basename("http://w...content-available-to-author-only...l.com/index.php?lang=en");
echo $pagename;
PD9waHAKCi8vIHlvdXIgY29kZSBnb2VzIGhlcmUKCiRwYWdlbmFtZSA9IGJhc2VuYW1lKCJodHRwOi8vdy4uLmNvbnRlbnQtYXZhaWxhYmxlLXRvLWF1dGhvci1vbmx5Li4ubC5jb20vaW5kZXgucGhwP2xhbmc9ZW4iKTsKCiRwYWdlbmFtZSA9IHByZWdfcmVwbGFjZSgiL1wuLiovIiwgIiIsICRwYWdlbmFtZSk7CgplY2hvICRwYWdlbmFtZTs=