include/chajian/cacheChajian.php

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<?php 
/**
*	缓存，目前是使用磁盘文件存储
*/
class cacheChajian extends Chajian{
	
	private $dirvie = 'file'; //redis,file
	
	/**
	*	设置缓存
	* 	$time 缓存时间(秒)
	*/
	public function set($key, $data, $time=0)
	{
		$this->del($key); //删除原来的
		$sarr['key']  = $this->getkey($key);
		$sarr['data'] = $data;
		if($time>0){
			$time = time()+$time;
		}else{
			$time = 0;
		}
		$sarr['time'] = $time;
		if($time>0)$sarr['timedt'] = date('Y-m-d H:i:s', $time);
		$sarr['url']  = $this->rock->nowurl();
		$this->delexpire();
		return $this->rock->createtxt($this->getpath($key, $time, 1), json_encode($sarr));
	}
	
	private function getkey($key)
	{
		return ''.QOM.''.$key.'';
	}
	
	private function getpath($key, $time=0, $lx=0)
	{
		$key = $this->getkey($key);
		$ske = '';
		if($time>0)$ske='_'.$time.'';
		
		if($lx==0)return ''.ROOT_PATH.'/'.UPDIR.'/cache/'.md5($key).''.$ske.'';
		return ''.UPDIR.'/cache/'.md5($key).''.$ske.'';
	}
	
	//获取文件名
	private function getpaths($key)
	{
		$key = $this->getkey($key);
		$file= ''.ROOT_PATH.'/'.UPDIR.'/cache/'.md5($key).'';
		$bar = glob(''.$file.'*');
		if(is_array($bar))foreach($bar as $k=>$fil1){
			if($k==0){
				$file = $fil1;
			}else{
				unlink($fil1);
			}
		}
		return $file;
	}