I'm trying to create a route filter that will accept multiple parameters (got it working with one parameter). For example, I'd like to do this:

Route::filter("multiTest", function($route, $request, $parameters) {
    // code here
});

And then call it like this:

Route::group(array('before' => 'multiTest:1:2:3'), function() {
    Route::get('multiTest', function() {
        // more code here
    });
});

Is there a method on the Route facade that returns an array of parameters passed to the filter? I suppose I can parse it manually (explode $parameters on :) but it seems like there should be a built-in way of doing that?