php代码
class redisCache {
/**
* $host : redis服务器ip
* $port : redis服务器端口
* $lifetime : 缓存文件有效期,单位为秒
* $cacheid : 缓存文件路径,包含文件名
*/
private $host;
private $port;
private $lifetime;
private $cacheid;
private $data;
public $redis;
/**
* 析构函数,检查缓存目录是否有效,默认赋值
*/
function __construct($lifetime=1800) {
//配置
$this->host = "127.0.0.1";
$this->port = "6379";
$redis = new Redis();
$redis->pconnect($this->host,$this->port);
$this->redis=$redis;
$this->cacheid = $this->getcacheid();
$this->lifetime = $lifetime;
$this->data=$redis->hMGet($this->cacheid, array('content','creattime'));
//print_r($this->redis);
//print_r($this->data);
}
/**
* 检查缓存是否有效
*/
private function isvalid(){
$data=$this->data;
if (!$data['content']) return false;
if (time() - $data['creattime'] > $this->lifetime) return false;
return true;
}
/**
* 写入缓存
* $mode == 0 , 以浏览器缓存的方式取得页面内容
*/
public function write($mode=0,$content='') {
switch ($mode) {
case 0:
$content = ob_get_contents();
break;
default:
break;
}
ob_end_flush();
try {
$this->redis->hMset($this->cacheid, array('content'=>$content,'creattime'=>time()));
}
catch (Exception $e) {
$this->error('写入缓存失败!');
}
}
/**
* 加载缓存
* exit() 载入缓存后终止原页面程序的执行,缓存无效则运行原页面程序生成缓存
* ob_start() 开启浏览器缓存用于在页面结尾处取得页面内容
*/
public function load() {
if ($this->isvalid()) {
echo $this->data['content'];
exit();
}
else {
ob_start();
}
}
/**
* 清除缓存
*/
public function clean() {
try {
$this->redis->hDel($this->cacheid, array('content','creattime'));
}
catch (Exception $e) {
$this->error('清除缓存失败!');
}
}
/**
* 取得缓存文件路径
*/
private function getcacheid() {
return $this->dir.md5($this->geturl()).$this->ext;
}
/**
* 取得当前页面完整url
*/
private function geturl() {
$url = '';
if (isset($_SERVER['REQUEST_URI'])) {
$url = $_SERVER['REQUEST_URI'];
}
else {
$url = $_SERVER['Php_SELF'];
$url .= empty($_SERVER['QUERY_STRING'])?'':'?'.$_SERVER['QUERY_STRING'];
}
return $url;
}
/**
* 输出错误信息
*/
private function error($str) {
echo '<div style="color:red;">'.$str.'</div>';
}
}
//用法：
// require_once('redisCache.php');
// $cache = new redisCache(10); //设置缓存生存期
// if ($_GET['clearCache']) $cache->clean();
// else $cache->load(); //装载缓存,缓存有效则不执行以下页面代码
// //页面代码开始
// //页面代码结束
// $cache->write(); //首次运行或缓存过期,生成缓存修复redis缓存生存时间
class redisCache {
/**
* $host : redis服务器ip
* $port : redis服务器端口
* $lifetime : 缓存文件有效期,单位为秒
* $cacheid : 缓存文件路径,包含文件名
*/
private $host;
private $port;
private $lifetime;
private $cacheid;
private $data;
public $redis;
/**
* 析构函数,检查缓存目录是否有效,默认赋值
*/
function __construct($lifetime=1800) {
//配置
$this->host = "127.0.0.1";
$this->port = "6379";
$redis = new Redis();
$redis->pconnect($this->host,$this->port);
$this->redis=$redis;
$this->cacheid = $this->getcacheid();
$this->lifetime = $lifetime;
$this->data=$redis->hMGet($this->cacheid, array('content','creattime'));
//print_r($this->redis);
//print_r($this->data);
}
/**
* 检查缓存是否有效
*/
private function isvalid(){
$data=$this->data;
if (!$data['content']) return false;
if (time() - $data['creattime'] > $this->lifetime) return false;
return true;
}
/**
* 写入缓存
* $mode == 0 , 以浏览器缓存的方式取得页面内容
*/
public function write($mode=0,$content='') {
switch ($mode) {
case 0:
$content = ob_get_contents();
break;
default:
break;
}
ob_end_flush();
try {
$this->redis->hMset($this->cacheid, array('content'=>$content,'creattime'=>time()));
$this->redis->expireAt($this->cacheid, time() + $this->lifetime);
}
catch (Exception $e) {
$this->error('写入缓存失败!');
}
}
/**
* 加载缓存
* exit() 载入缓存后终止原页面程序的执行,缓存无效则运行原页面程序生成缓存
* ob_start() 开启浏览器缓存用于在页面结尾处取得页面内容
*/
public function load() {
if ($this->isvalid()) {
echo $this->data['content'];
exit();
}
else {
ob_start();
}
}
/**
* 清除缓存
*/
public function clean() {
try {
$this->redis->hDel($this->cacheid, array('content','creattime'));
}
catch (Exception $e) {
$this->error('清除缓存失败!');
}
}
/**
* 取得缓存文件路径
*/
private function getcacheid() {
return $this->dir.md5($this->geturl()).$this->ext;
}
/**
* 取得当前页面完整url
*/
private function geturl() {
$url = '';
if (isset($_SERVER['REQUEST_URI'])) {
$url = $_SERVER['REQUEST_URI'];
}
else {
$url = $_SERVER['Php_SELF'];
$url .= empty($_SERVER['QUERY_STRING'])?'':'?'.$_SERVER['QUERY_STRING'];
}
return $url;
}
/**
* 输出错误信息
*/
private function error($str) {
echo '<div style="color:red;">'.$str.'</div>';
}
}
//用法：
// require_once('redisCache.php');
// $cache = new redisCache(10); //设置缓存生存期
// if ($_GET['clearCache']) $cache->clean();
// else $cache->load(); //装载缓存,缓存有效则不执行以下页面代码
// //页面代码开始
// //页面代码结束
// $cache->write(); //首次运行或缓存过期,生成缓存
?>Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
How Long Does It Take To Beat Split Fiction?
1 months agoByDDD
R.E.P.O. Best Graphic Settings
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Assassin's Creed Shadows: Seashell Riddle Solution
1 weeks agoByDDD
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hot Tools
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
SublimeText3 Linux new version
SublimeText3 Linux latest version
