param('task'); if (null !== $task) { $task = filter_var($task, FILTER_SANITIZE_STRING); } return $task ?: null; }; $container['action'] = function (Grav $c) { $action = $_POST['action'] ?? $c['uri']->param('action'); if (null !== $action) { $action = filter_var($action, FILTER_SANITIZE_STRING); } return $action ?: null; }; } }