Friends who need the PHP memory cache Memcached class can refer to it.
The code is as follows | 代码如下 | 复制代码 | |
class MemcacheModel {
private $mc = null;
/**
* 构造方法,用于添加服务器并创建memcahced对象
*/
function __construct(){
$params = func_get_args();
$mc = new Memcache;
//如果有多个memcache服务器
if( count($params) > 1){
foreach ($params as $v){
call_user_func_array(array($mc, 'addServer'), $v);
}
//如果只有一个memcache服务器
} else {
call_user_func_array(array($mc, 'addServer'), $params[0]);
}
$this->mc=$mc;
}
/**
* 获取memcached对象
* @return object memcached对象
*/
function getMem(){
return $this->mc;
}
/**
* 检查mem是否连接成功
* @return bool 连接成功返回true,否则返回false
*/
function mem_connect_error(){
$stats=$this->mc->getStats();
if(empty($stats)){
return false;
}else{
return true;
}
}
private function addKey($tabName, $key){
$keys=$this->mc->get($tabName);
if(empty($keys)){
$keys=array();
}
//如果key不存在,就添加一个
if(!in_array($key, $keys)) {
$keys[]=$key; //将新的key添加到本表的keys中
$this->mc->set($tabName, $keys, MEMCACHE_COMPRESSED, 0);
return true; //不存在返回true
}else{
return false; //存在返回false
}
}
/**
* 向memcache中添加数据
* @param string $tabName 需要缓存数据表的表名
* @param string $sql 使用sql作为memcache的key
* @param mixed $data 需要缓存的数据
*/
function addCache($tabName, $sql, $data){
$key=md5($sql);
//如果不存在
if($this->addKey($tabName, $key)){
$this->mc->set($key, $data, MEMCACHE_COMPRESSED, 0);
}
}
/**
* 获取memcahce中保存的数据
* @param string $sql 使用SQL的key
* @return mixed 返回缓存中的数据
*/
function getCache($sql){
$key=md5($sql);
return $this->mc->get($key);
}
/**
* 删除和同一个表相关的所有缓存
* @param string $tabName 数据表的表名
*/
function delCache($tabName){
$keys=$this->mc->get($tabName);
//删除同一个表的所有缓存
if(!empty($keys)){
foreach($keys as $key){
$this->mc->delete($key, 0); //0 表示立刻删除
}
}
//删除表的所有sql的key
$this->mc->delete($tabName, 0);
}
/**
* 删除单独一个语句的缓存
* @param string $sql 执行的SQL语句
*/
function delone($sql){
$key=md5($sql);
$this->mc->delete($key, 0); //0 表示立刻删除
}
}
| |
Copy code |
|
class MemcacheModel {
private $mc = null;
/**
* Construction method, used to add servers and create memcahced objects
*/
function __construct(){
$params = func_get_args();
$mc = new Memcache;
//If there are multiple memcache servers
if( count($params) > 1){foreach ($params as $v){
call_user_func_array(array($mc, 'addServer'), $v);
}
//If there is only one memcache server
} else {
call_user_func_array(array($mc, 'addServer'), $params[0]);
}
$this->mc=$mc;
}
/**
* Get memcached object
* @return object memcached object
*/
function getMem(){
return $this->mc;
}
/**
* Check whether mem is connected successfully
* @return bool If the connection is successful, it returns true, otherwise it returns false
*/
function mem_connect_error(){
$stats=$this->mc->getStats();
if(empty($stats)){
return false ;
}else{
return true;
}
}
private function addKey($tabName, $key){
$keys=$ this->mc->get($tabName);
if(empty($keys)){
$keys=array();
}
//if If the key does not exist, add one
if(!in_array($key, $keys)) {
$keys[]=$key; //Add the new key to the keys of this table$this->mc->set($tabName, $keys, MEMCACHE_COMPRESSED, 0);
return true; //If it does not exist, return true
}else{
return false; //Exists and returns false
}
}
/**
* Add data to memcache
* @param string $tabName The table name of the data table that needs to be cached
* @param string $sql Use sql as the key of memcache
* @param mixed $data Data that needs to be cached
*/
function addCache($tabName, $sql, $data){
$key=md5($sql);
//If it does not exist
if($this->addKey($tabName, $key)){
$this->mc- >set($key, $data, MEMCACHE_COMPRESSED, 0);
}
}
/**
* Get the data saved in memcahce
* @param string $sql Use SQL key
* @return mixed Return the data in the cache
*/
function getCache($sql){
$key=md5($sql);
return $this->mc->get($key);
}
/**
* Delete all caches related to the same table
* @param string $tabName The table name of the data table
*/
function delCache($tabName){
$keys=$this->mc->get($tabName);
//Delete all caches of the same table
if(!empty($keys)){
foreach($keys as $key){
$this->mc->delete($key, 0); // 0 means delete immediately
}
}
//Delete all sql keys of the table
$this->mc->delete($tabName, 0);
/>}
/**
* Delete the cache of a single statement
* @param string $sql SQL statement executed
*/
function delone($sql){
$key=md5($sql);
$this->mc- >delete($key, 0); //0 means delete immediately
}
}
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www.bkjia.comhttp: //www.bkjia.com/PHPjc/444667.htmlTechArticleFriends in need of the PHP memory cache Memcached class can refer to it. The code is as follows Copy the code ?PHP class MemcacheModel { private $mc = null; /** * Construction method, used to add servers and create...
