$page = optional_param('page', 0, PARAM_INT); // which page to show
$search = optional_param('search', ''); // search string
+ $params = array();
+ if ($id) {
+ $params['id'] = $id;
+ } else {
+ $params['f'] = $f;
+ }
+ if ($page) {
+ $params['page'] = $page;
+ }
+ if ($search) {
+ $params['search'] = $search;
+ }
+ $PAGE->set_url('mod/forum/view.php', $params);
$buttontext = '';