PHP中Memcache操作类及用法实例,phpmemcache
本文实例讲述了PHP中Memcache操作类及用法。分享给大家供大家参考。具体分析如下:
复制代码 代码如下:
/* 内存缓存管理
*/
class Yc_Memcache{
private $memcache=null;
public function __construct(){
}
/**
* 连接数据库
*
* @param mixed $host
* @param mixed $port
* @param mixed $timeout
*/
public function connect($host,$port=11211,$timeout=1){
if(!function_exists(memcache_connect)){ return FALSE;}
$this->memcache=@memcache_connect($host,$port,$timeout);
if(emptyempty($this->memcache)){
return FALSE;
}else{
return TRUE;
}
}
/**
* 存放值
*
* @param mixed $key
* @param mixed $var
* @param mixed $flag 默认为0不压缩 压缩状态填写:MEMCACHE_COMPRESSED
* @param mixed $expire 默认缓存时间(单位秒)
*/
public function set($key,$var,$flag=0,$expire=10){
$f=@memcache_set($this->memcache,$key,$var,$flag,$expire);
if(emptyempty($f)){
return FALSE;
}else{
return TRUE;
}
}
/**
* 取出对应的key的value
*
* @param mixed $key
* @param mixed $flags
* $flags 如果此值为1表示经过序列化,
* 但未经过压缩,2表明压缩而未序列化,
* 3表明压缩并且序列化,0表明未经过压缩和序列化
*/
public function get($key,$flags=0){
$val=@memcache_get($this->memcache,$key,$flags);
return $val;
}
/**
* 删除缓存的key
*
* @param mixed $key
* @param mixed $timeout
*/
public function delete($key,$timeout=1){
$flag=@memcache_delete($this->memcache,$key,$timeout);
return $flag;
}
/**
* 刷新缓存但不释放内存空间
*
*/
public function flush(){
memcache_flush($this->memcache);
}
/**
* 关闭内存连接
*
*/
public function close(){
memcache_close($this->memcache);
}
/**
* 替换对应key的value
*
* @param mixed $key
* @param mixed $var
* @param mixed $flag
* @param mixed $expire
*/
public function replace($key,$var,$flag=0,$expire=1){
$f=memcache_replace($this->memcache,$key,$var,$flag,$expire);
return $f;
}
/**
* 开启大值自动压缩
*
* @param mixed $threshold 单位b
* @param mixed $min_saveings 默认值是0.2表示20%压缩率
*/
public function setCompressThreshold($threshold,$min_saveings=0.2){
$f=@memcache_set_compress_threshold($this->memcache,$threshold,$min_saveings);
return $f;
}
/**
* 用于获取一个服务器的在线/离线状态
*
* @param mixed $host
* @param mixed $port
*/
public function getServerStatus($host,$port=11211){
$re=memcache_get_server_status($this->memcache,$host,$port);
return $re;
}
/**
* 缓存服务器池中所有服务器统计信息
*
* @param mixed $type 期望抓取的统计信息类型,可以使用的值有{reset, malloc, maps, cachedump, slabs, items, sizes}
* @param mixed $slabid cachedump命令会完全占用服务器通常用于 比较严格的调
* @param mixed $limit 从服务端获取的实体条数
*/
public function getExtendedStats($type='',$slabid=0,$limit=100){
$re=memcache_get_extended_stats($this->memcache,$type,$slabid,$limit);
return $re;
}
}
/***********测试区域********************/
$mem=new Yc_Memcache();
$f=$mem->connect('125.64.41.138',12000);
var_dump($f);
if($f){
// $mem->setCompressThreshold(2000,0.2);
$mem->set('key','hello',0,30);
// var_dump($mem->delete('key1'));
// $mem->flush();
// var_dump($mem->replace('hao','d'));
// echo $mem->get('key');
echo $mem->getServerStatus('127.0.0.1',12000);
echo $mem->get('key');
echo '
'; <br> print_r($mem->getExtendedStats()); <br> } <br> <br> ?><br> <p>希望本文所述对大家的PHP程序设计有所帮助。</p>

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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 English version
Recommended: Win version, supports code prompts!

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 Chinese version
Chinese version, very easy to use

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
