php_script/top/security/YacCache.php

<?php
/**
* yac实现cache
*/
class YacCache implements iCache
{
	public $isEnable = true;

	function __construct()
	{
		if (!extension_loaded("yac"))
			$this->isEnable = false;
	}

	public function getCache($key)
	{
		$key = md5($key);
		if($this->isEnable){
			$yac = new Yac();
			return $yac->get($key);
		}else{
			echo "yac is not enable ,skip getCache";
		}
	}

	public function setCache($key,$var)
	{
		$key = md5($key);
		if($this->isEnable){
			$yac = new Yac();
			$yac->set($key, $var);
		}else{
			echo "yac is not enable ,skip setCache";
		}
	}
}

?>