Router.php

<?php

class Router
{
    public $routes = array();

    public function route( $method, $pattern, $callback )
    {
        $pattern = '/^' . str_replace( array('/', ':id'), array('\/', '([0-9]+)'), $pattern ) . '$/';
        $this->routes[$method][$pattern] = $callback;
    }

    public function execute( $uri, $method )
    {
        foreach ( $this->routes[$method] as $pattern => $callback ) {
            if ( preg_match( $pattern, $uri, $params ) ) {
                array_shift( $params );
                if ( is_string( $callback ) && strpos(  $callback, '@' ) ) {
                    list( $controller, $method ) = explode( '@', $callback );
                    return call_user_func_array( array(new $controller, $method), array_values( $params ) );
                }
                return call_user_func_array( $callback, array_values( $params ) );
            }
        }
    }
	
	public function __call($method, $arguments)
    {
		list( $pattern, $callback ) = $arguments;
        $this->route( strtoupper($method), $pattern, $callback );
    }
}


//-------------------------------------------------------------------

class User {
	public function __construct() {
	}
	public function profile ( $id ) {
		echo "Exibir perfil do usuário id: $id";
	}
}

//-------------------------------------------------------------------


$r = new Router();
$r->get( 'usuario/:id/perfil', 'User@profile');
$r->post( 'usuario/:id/perfil', 'User@profile');
$r->put( 'usuario/:id/perfil', 'User@profile');
$r->delete( 'usuario/:id/perfil', 'User@profile');
$r->execute( 'usuario/2/perfil', 'GET');

echo '<pre>';
print_r($r->routes);