Seamless Respect Framework

index.php

<?php
/**
 * Example of usage of the "Respect Framework", that is actually
 * just using one or more Respect components together.
 *
 * Using components in version 0.4.*
 */
use Respect\Validation\Validator as v;
use Respect\Rest\Router;

$router   = new Router();
$router->get('/users/*', function($username){
    return $username;
})->accept(array(
    'text/html' => function($username) { return "<h1>".$username."</h1>"; },
    'application/json' => 'json_encode'
))->when(function($username) {
    return v::attribute('username')->alnum('_')->length(1,15)->validate($username);
});

Damn right.