If you, like me, prefer Komodo IDE for PHP development, you may have noticed that superglobals ($_GET, $_POST, etc) are absent from "Superglobals" tab in debug window. If you have this problem, update to the latest PECL version of XDebug:

sudo pecl update xdebug

Superglobal will magically appear. Do not forget to restart Apache:

sudo apachectl restart