Making a "catchall" route in Slim

slim_catchall_route.php

<?php
/**
 * by setting the regex condition for the :method param to '.+', it matches
 * everything, including "/" chars. this lets us match any URL of the format.
 * 
 * /api/foo outputs "foo"
 * /api/foo/bar/baz outputs "foo/bar/baz"
 */
$app->get('/api/:method', function($method) use ($app) {
    echo $method;
})->conditions(array('method' => '.+'));

In slim v4 I do this

$app->get('/{path:.*}', function ($request, $response, array $args) {
    // do stuff ...
});

If you have other routes, you need to make the catchall the last route so the other routes still function correctly. I found this method in the FastRoute library nikic/FastRoute#113