我当前的路由器 / FrontController 设置为以以下格式剖析 URL:
http://localhost/controller/method/arg1/arg2/etc...
但是,我不确定如何将某些请求默认为 IndexController,以便我可以键入:
http://localhost/contact
or
http://localhost/about/portfolio
代替:
http://localhost/index/contact
or
http://localhost/index/about/portfolio
这是如何实现的?
<?php
namespace framework;
class FrontController {
const DEFAULT_CONTROLLER = 'framework\controllers\IndexController';
const DEFAULT_METHOD = 'index';
public $controller = self::DEFAULT_CONTROLLER;
public $method = self::DEFAULT_METHOD;
public $params = array();
public $model;
public $view;
function __construct() {
$this->model = new ModelFactory();
$this->view = new View();
}
// route request to the appropriate controller
public function route() {
// get request path
$basePath = trim(substr(PUBLIC_PATH, strlen($_SERVER['DOCUMENT_ROOT'])), '/') . '/';
$path = trim(parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH), '/');
if($basePath != '/' && strpos($path, $basePath) === 0) {
$path = substr($path, strlen($basePath));
}
// determine what action to take
@list($controller, $method, $params) = explode('/', $path, 3);
if(isset($controller, $method)) {
$obj = __NAMESPACE__ . '\\controllers\\' . ucfirst(strtolower($controller)) . 'Controller';
$interface = __NAMESPACE__ . '\\controllers\\' . 'InterfaceController';
// make sure a properly implemented controller and corresponding method exists
if(class_exists($obj) && method_exists($obj, $method) && in_array($interface, class_implements($obj))) {
$this->controller = $obj;
$this->method = $method;
if(isset($params)) {
$this->params = explode('/', $params);
}
}
}
// make sure we have the appropriate number of arguments
$args = new \ReflectionMethod($this->controller, $this->method);
$totalArgs = count($this->params);
if($totalArgs >= $args->getNumberOfRequiredParameters() && $totalArgs <= $args->getNumberOfParameters()) {
call_user_func_array(array(new $this->controller, $this->method), $this->params);
} else {
$this->view->load('404');
}
}
}