php框架开发2（SPL库和controller）

<p>require 'includes/exceptions.php';
require 'includes/autoloader.php';
session_start();</p><p>//$view = new view();
lib::set_item('controller' , new controller());
lib::get_item('controller' , lib::PERSIST_STORGE)->render();
//$content = $view->finish();</p>

require 'simple/simple.php';

<?php
class autoloader{
	
	public static function includesautoloader($class){
		$path = defined('SIMPLE_PATH') ? SIMPLE_PATH : $_SERVER['DOCUMENT_ROOT'];
		$file_name = $path . '/includes/' . $class . '.php';
		if(is_readable($file_name))
			require $file_name;
	}
	
	public static function modulesautoloader($class){
		$path = defined('SIMPLE_PATH') ? SIMPLE_PATH : $_SERVER['DOCUMENT_ROOT'];
		$file_name = $path . '/modules/' . $class . '.php';
		if(is_readable($file_name))
			require $file_name;
	}
	
	public static function controllerautoloader($class){
		$path = defined('SIMPLE_PATH') ? SIMPLE_PATH : $_SERVER['DOCUMENT_ROOT'];
		$file_name = $path . '/controller/' . $class . '.php';
		if(is_readable($file_name))
			require $file_name;
	}

}

spl_autoload_register('autoloader::includesautoloader');
spl_autoload_register('autoloader::modulesautoloader');
spl_autoload_register('autoloader::controllerautoloader');

<?php
class lib{
	
	const SETTING_ARRAY = true;
	const PERSIST_STORGE = false;
	
	public static function set_item($name , $value , $is_array = false){
		if($is_array){
			$_SESSION[$name]   = array();
			$_SESSION[$name][] = $value;
		}
		else{
			$_SESSION[$name] = $value;
		}
	}
	
	public static function get_item($name , $persist = true){
		$result = null;
		if(isset($_SESSION[$name])){
			$result = $_SESSION[$name];
		}
		if(!$persist){
			unset($_SESSION[$name]);
		}
		return $result;
	}
	
	public static function sendto($url = ''){
		if(empty($url)){
			$url  = '/';
		}
		die(header('Location:' . $url));
	}
}

<?php
class controller{
	//URL部分
	protected $parts;
	//方法参数
	protected $params;
	
	public function __construct(){
		$this->parts = array();
		$this->analysis();
	}
	
	public function analysis(){
		$path_info = $_SERVER['PATH_INFO'];
		if(substr($path_info , 0 , 1) == '/'){
			$path_info = substr($path_info , 1);
		}
		$parts = explode('/' , $path_info);
		if(empty($parts[0]))  $parts[0] = 'index';
		if(empty($parts[1]))  $parts[1] = 'demo';
		
		$this->parts = $parts;
		array_shift($parts);
		array_shift($parts);
		$this->params = $parts;
	}
	
	public function render(){
		if(!class_exists($this->parts[0])){
			throw new ControllerDoesntExistsException($this->parts[0] . ' not exists!');
		}
		if(!method_exists($this->parts[0] , $this->parts[1])){
			throw new ActionDoesntExistsException($this->parts[0] . 'of ' . $this->parts[1] . ' not exists!');
		}
		
		$new_controller = new $this->parts[0];
		$called = call_user_func_array(array($new_controller , $this->parts[1]) , $this->params);
		if($called === false){
			throw new ActionFailedException($this->parts[0] . 'of ' . $this->parts[1] . ' failed to excute property!');
		}
	}
}

<?php
class index{
	
	public function demo(){
		echo "sdfsdf";
	}
}