PHP 动态网站变 静态缓存 加快网站访问速度

<?php
if($_GET['phphuancun']!="true"){
define("HC_PATH",dirname(__FILE__)."/cache/");
define("HC_TIME",1);
echo HC_getcache();exit;
}
function HC_getcache($iscache='')
{
	$url="http://".$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'];
	$cacheurl=strpos($url,"?")?$url."&phphuancun=true":$url."?phphuancun=true";
	$cachename=HC_PATH.md5($url).".c";

	$cachetime=$iscache?time()+1:time()-(HC_TIME * 60*60);
	if(file_exists($cachename) && filemtime($cachename)>=$cachetime){
		$return=file_get_contents($cachename);$data=function_exists(gzcompress)?@gzuncompress($return):$return;
		return unserialize($data);
	}else{$return=file_get_contents($cacheurl);HC_writecache($cachename,$return);return $return;}

}
function HC_writecache($name,$array)
{
	function_exists(gzcompress)?$return =gzcompress(serialize($array)):$return=serialize($array);
	@file_put_contents($name,$return);
}
?>