<?php
Router::$welcome_route = "welcome";
Router::$routes = array('/index.php' => 'welcome', '/hello-world' => 'HelloWorld', '/hello-world/say-hi' => 'hello_world:say_hello', '/hello-world/[action]' => 'hello_world', '/admin/projects/[action]' => 'admin/projects', '/non-existent-controller' => 'non_existent_controller', '/projects' => 'projects', '/projects/(project)' => 'projects:view', '/projects/(project)/delete' => 'projects:delete', '/projects/(project)/items/(item)' => 'projects:view_item', '/friends/:user/:friend' => 'friends:view_friend');
static function route()
{
if (!isset(self::$welcome_route)) {
self::$welcome_route = 'welcome';
}
$url = explode('?', $_SERVER['REQUEST_URI']);
$path = mb_strtolower($url[0]);
while (substr($path, -1) == '/') {
$path = mb_substr($path, 0, mb_strlen($path) - 1);
}
$path_components = explode('/', $path);
//default actions are called 'index'
$action = "index";
//Handle welcome page requests
if (count($path_components) == 1) {
Router::perform_controller_action(self::$welcome_route, $action, array(), array());
}
//Loop through all the routes we defined in route.php, and try to find one that matches our request
foreach (self::$routes as $route => $controller) {
$route_components = explode("/", $route);
$action = "index";
$i = 0;
$objects = array();
$goodRoute = true;
$path_components = array_pad($path_components, count($route_components), '');
$parameters = array();
//Handle routes that call a specific action
$controller_action_array = explode(":", $controller);
$controller = $controller_action_array[0];
if (count($controller_action_array) == 2) {
$action = $controller_action_array[1];
}
//Loop through each component of this route until we find a part that doesn't match, or we run out of url
foreach ($route_components as $route_component) {
//This part of the route is a named parameter
if (substr($route_component, 0, 1) == ":") {
$parameters[substr($route_component, 1)] = $path_components[$i];
//This part of the route is an action for a controller
} elseif ($route_component == "[action]") {
if ($path_components[$i] != "") {
$action = str_replace("-", "_", $path_components[$i]);
}
//This part of the route will require that we create an object
} elseif (substr($route_component, 0, 1) == "(" && substr($route_component, -1, 1) == ")") {
$reflection_obj = new ReflectionClass(substr($route_component, 1, strlen($route_component) - 2));
$object = $reflection_obj->newInstanceArgs(array($path_components[$i]));
$objects[] = $object;
//Part of the url that isn't an action or an object didn't match, this definitely isn't the right route
} elseif ($route_component != $path_components[$i] && str_replace("-", "_", $route_component) != $path_components[$i]) {
//echo "Bad match: ".str_replace("-","_",$route_component)." != ".$path_components[$i]."<br />";
$goodRoute = false;
break;
}
$i++;
}
//This route is a match for our request, let's get the controller working on it
if ($goodRoute && ($i >= count($path_components) || $path_components[$i] == "")) {
Router::perform_controller_action($controller, $action, $objects, $parameters);
}
}
error_404();
}
