在实际应用中我们会缓存从数据库中查出来的结果集，以md5($sql)为$key，结果集为值。
以只是在php简单应用代码：
memcache demo connect($server_ip,$server_port); $memcache->add("name1","user_name1",MEMCACHE_COMPRESSED,0); $memcache->add("name2","user_name2",MEMCACHE_COMPRESSED,0); $array1 = array('name1' => 'jiajiam1', 'age1'=>12, 'country'=>'china'); $memcache->add("other",$array1,MEMCACHE_COMPRESSED,20); $memcache->set("name3","user_name3",MEMCACHE_COMPRESSED,0); $memcache->replace("name1","user_name_relpace",MEMCACHE_COMPRESSED,0); $memcache->replace("123","12345"); echo"name1:".$memcache->get("name1")."
"; $memcache->delete("name1"); echo"name1:".$memcache->get("name1")."
"; $array_get = array("name1","name2","name3"); $result_get = $memcache->get($array_get); foreach ($result_get as $key => $value) { echo"$key:--->$value
"; } foreach ($memcache->getStats() as $key => $value) { echo"$key:--->$value
"; }; echo"
"; foreach($memcache->getExtendedStats() as $key => $value) { echo"$key:--->$value
"; } $memcache->close(); ?>
