php编写一个简单的路由类

<?php
class Router
{
public function getRouter($types = 1)
{
if ( isset($_SERVER[PATH_INFO]) )
{
$query_string = substr(str_replace(array(.html,.htm, .asp, //), ,$_SERVER[PATH_INFO]),1);
}
else
{
$query_string = str_replace($_SERVER[SCRIPT_NAME], ,$_SERVER[PHP_SELF]);
}
if ( $types == 1 )
{
// 第一种类型以/分隔
$temp = explode(/, $query_string);
}
elseif ($types == 2)
{
$temp = explode(-, $query_string);
}
elseif ($types == 3)
{
return array(Controller=>$_GET[controller]);
}
if ( empty($temp[0]) )
{
return array(Controller => index,Operate => index);
}
if ( empty($temp[1]) )
{
$temp[] = index;
}
// 去除空项
foreach ($temp as $val)
{
if ($val)
{
$url[] = $val;
}
}
list($controller, $operate) = $url;
//有参数的情况
$params = array();
if ( count($url)>2 )
{
array_shift($url);
array_shift($url);
$params = $url;
}
return
array(
"Controller" => $controller,
"Operate" => $operate,
"params" => $params,
);
}
}
?>

<?php
$url = new Router();
$url->getRouter(1);
print_r($url); //在这里可以看到各元素
?>