memcached 缓存

<?php

  $ob =new Memcache;
  
   //var_dump($ob);
   //连接memcache 端口号：11211
    $re= $ob->connect("127.0.0.1", 11211);
   
     //echo $ob->getVersion();
     
     //存值    key   value  id  time
      $arr =array(1,2,3,array(4,5,6));
     $ob ->set("name",$arr,0,5);
     $ob ->set("user","admin",0,5);
     //取值
      $data =$ob->get("name");
      $ob->replace("user","hehe",0,2018);
      echo $ob->get("user");
       print_r($data);
   //var_dump($re);
?>