一个php框架的简单实现，仅实现简单路由层

<?php
	$controll_action = $_GET['_ca_'];
	$params  = explode('/',$controll_action);
	$params_count = count($params);

	$otherParams = $params;
	if($params_count>1) {
		$controller = $params[0];
		$action  = $params[1];
		unset($params[0]);
		unset($params[1]);
	}else if($params_count==1) {
		$controller = $params[0];
		$action = 'index';
		unset($params[0]);
	}

	$filename = strtolower($controller).'.php';
	$controller_path = $_SERVER['DOCUMENT_ROOT'].'/application/controllers/';

	if(!file_exists($controller_path.$filename)) {
		throw new Exception('controller '.$filename.' is not exists!');
		return;
	}
	include($controller_path.$filename);

	$classname = ucfirst($controller);
	if(!class_exists($classname)) {
		throw new Excpetion('class '.$classname.' is not exists!');
	}
	$reflecObj = new ReflectionClass($classname);
	if(!$reflecObj->hasMethod($action)){
		throw new Exception('method '.$action.' is not exists!');
	}

	$currentObj = new $classname();
	echo "classname=$classname,action=$action,params=".json_encode($params)."<br/>";
	call_user_func_array([$currentObj,$action],$params);
	return;
?>

<?php
class User {
    
    function __construct(){
        
    }
    public function index($name='')
    {
    	echo 'hello,'.$name.',lucky,you are arrive here!';
    }
}

classname=User,action=index,params={"2":"xiaoming"}
 hello,xiaoming,lucky,you are arrive here!

Fatal error: Uncaught exception 'Exception' with message 'controller acount.php is not exists!' in /home/www/webroot/index.php:25Stack trace:#0 {main} thrown in 
/home/www/webroot/index.php on line 25