一个php简单的框架实现，仅实现了简单路由层

首先看一下现有的文件目录



DOCUMENT_ROOR 为 /home/www目录

然后看一下入口文件的内容

<?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;
?>

然后创建一个简单的控制器 user.php,放到applicaiton/controllers/目录下，具体内容如下：

<?php
class User {

function __construct(){

}
public function index($name='')
{
echo 'hello,'.$name.',lucky,you are arrive here!';
}
}

最后测试一个正确的控制器跳转和错误的控制器跳转

首先测试一下正确的流程： http://192.168.1.99/user/index/xiaoming
输出内容：

classname=User,action=index,params={"2":"xiaoming"}

hello,xiaoming,lucky,you are arrive here!

再测试一下不存在的控制器,http://192.168.1.99/account/index/xiaoming

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



ok,就到这里吧，祝大家春节快乐，幸福美满。