For consistency $_POST, $_FILES and $_GET variables are accessed using the MK_Request::getPost() and MK_Request::getQuery() methods as seen in the example below.
print MK_Request::getQuery('page');
print MK_Request::getPost('keywords');
You can also choose to return a default value, where needed, by giving a second parameter.
print MK_Request::getQuery('page', 1);
There may also be instances where you want to find either a $_POST / $_FILES or $_GET parameter. For this we use MK_Request::getParam(), which first checks to see if there is a $_POST / $_FILES value matching that key and then checks for a $_GET value matching that key.
print MK_Request::getParam('keywords');