<?php
/**
 * Created by PhpStorm.
 * User: chenxiaolong
 * Date: 2016/11/6
 * Time: 20:47
 */
class sessionmanager{
    private $redis;
    private $sessionsavepath;
    private $sessionname;
    public function __construct()
    {
        $this->redis = new Redis();
        $this->redis->connect(‘10.16.59.141‘,6400);
        $reval = session_set_save_handler(
            array($this,"open"),
            array($this,"close"),
            array($this,"read"),
            array($this,"write"),
            array($this,"destroy"),
            array($this,"gc")
        );
        session_start();
    }

    public function open($patn,$name){
        return true;
    }
    public function close(){
        return true;
    }
    public function read($id){
        $value = $this->redis->get($id);
        if($value) {
            return $value;
        } else {
            return false;
        }
    }
    public function write($id,$data){
        if($this->redis->set($id,$data)) {
            $this->redis->expire($id,300000);
            return true;
        } else {
            return false;
        }
    }
    public function destroy($id) {
        if($this->redis->delete($id)) {
            return true;
        }
        return false;
    }
    public function gc($maxlifetime){
        return true;
    }
    public function __destruct()
    {
        session_write_close();
        // TODO: Implement __destruct() method.
    }
}

<?php
/**
 * Created by PhpStorm.
 * User: chenxiaolong
 * Date: 2016/11/6
 * Time: 20:56
 */
include ‘sessionmanager.php‘;
new sessionmanager();
$_SESSION[‘namehaha‘] = ‘lixiaolong‘;
$_SESSION[‘namehah‘] = ‘lixiaolong‘;
$_SESSION[‘namehaa‘] = ‘lixiaolong‘;
$_SESSION[‘namhaha‘] = ‘lixiaolong‘;
$_SESSION[‘namhaha‘] = array(‘a‘=>1,2,3,4,4);

<?php
/**
 * Created by PhpStorm.
 * User: chenxiaolong
 * Date: 2016/11/6
 * Time: 20:57
 */
include ‘sessionmanager.php‘;
new sessionmanager();
var_dump($_SESSION);

使用redis代替文件存储session信息