123 lines
2.5 KiB
PHP
123 lines
2.5 KiB
PHP
<?php
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/**
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* 缓存，目前是使用磁盘文件存储
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*/
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class cacheChajian extends Chajian{
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private $dirvie = 'file'; //redis,file
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/**
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* 设置缓存
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* $time 缓存时间(秒)
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*/
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public function set($key, $data, $time=0)
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{
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$this->del($key); //删除原来的
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$sarr['key'] = $this->getkey($key);
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$sarr['data'] = $data;
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if($time>0){
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$time = time()+$time;
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}else{
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$time = 0;
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}
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$sarr['time'] = $time;
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if($time>0)$sarr['timedt'] = date('Y-m-d H:i:s', $time);
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$sarr['url'] = $this->rock->nowurl();
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$this->delexpire();
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return $this->rock->createtxt($this->getpath($key, $time, 1), json_encode($sarr));
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}
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private function getkey($key)
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{
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return ''.QOM.''.$key.'';
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}
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private function getpath($key, $time=0, $lx=0)
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{
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$key = $this->getkey($key);
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$ske = '';
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if($time>0)$ske='_'.$time.'';
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if($lx==0)return ''.ROOT_PATH.'/'.UPDIR.'/cache/'.md5($key).''.$ske.'';
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return ''.UPDIR.'/cache/'.md5($key).''.$ske.'';
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}
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//获取文件名
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private function getpaths($key)
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{
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$key = $this->getkey($key);
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$file= ''.ROOT_PATH.'/'.UPDIR.'/cache/'.md5($key).'';
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$bar = glob(''.$file.'*');
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if(is_array($bar))foreach($bar as $k=>$fil1){
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if($k==0){
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$file = $fil1;
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}else{
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unlink($fil1);
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}
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}
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return $file;
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}
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/**
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* 获取缓存
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*/
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public function get($key, $dev='')
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{
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$file= $this->getpaths($key);
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$data= $dev;
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if(file_exists($file)){
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$filea= explode('_', $file);
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$time = (int)arrvalue($filea, count($filea)-1,'0');
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if($time==0 || $time>=time()){
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$cont = file_get_contents($file);
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if(!isempt($cont)){
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$sarr = json_decode($cont, true);
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$data = arrvalue($sarr, 'data');
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}
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}else{
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unlink($file); //已经过期了
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}
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}
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return $data;
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}
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/**
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* 删除缓存
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*/
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public function del($key)
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{
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$file= $this->getpaths($key);
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if(file_exists($file))@unlink($file);
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return true;
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}
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/**
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* 删除所有缓存
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*/
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public function delall()
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{
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$bar = glob(''.ROOT_PATH.'/'.UPDIR.'/cache/*');
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foreach($bar as $k=>$fil1){
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unlink($fil1);
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}
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}
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/**
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* 删除过期的缓存
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*/
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public function delexpire()
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{
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$bar = glob(''.ROOT_PATH.'/'.UPDIR.'/cache/*');
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$time= time();
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foreach($bar as $k=>$fil1){
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if(contain($fil1,'_')){
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$fil11 = substr($fil1, strripos($fil1, '_')+1);
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if(is_numeric($fil11)){
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if($fil11<$time){
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unlink($fil1);
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}
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}
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}
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}
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}
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}
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