Functional PHP Framework

FF.php

<?php
function route($pattern, $controller)
{
    return function($query) use($pattern, $controller) {
        return (($matches = route_match($pattern, $query)) === false) ?
            false :
            function($registry) use($matches, $controller) {
                return $controller($matches, $registry); 
            }
        ;
    };
}

function route_match($pattern, $query)
{
    $regex = preg_replace('#:([a-z]+)#', '(?P<$1>[^/]+)', $pattern);
    return !preg_match('#^'.$regex.'$#', $query, $matches) ? false : $matches;    
}

function app($routes, $query, $registry)
{
    $controller = router($routes, $query);
    return $controller ? $controller($registry) : 'HTTP 404';
}

function router($routes, $query)
{
    return !count($routes) || !($route = $routes[0]) ? false :
        ((($controller = $route($query)) === false) ?
            router(array_slice($routes, 1), $query) :
            $controller
        );
}

function view($file, $params)
{
    extract($params);
    ob_start();
    include $file;
    return ob_get_clean();
}

/*

Usage:

echo app(
    array(
        route('/hi/:name', function($params) {
            return 'Hi '.$params['name'];
        })
    ), '/hi/Pim', array());

Be sure to set up your .htaccess file correctly

*/