php 如何以json格式存储session，而不是默认的内置编码？

折腾了下，即使session_save_handler被自己的类或者方法重写，write与read的出入数据都还是被序列化的，而且被session序列化不是一般的序列化...还是不能解解决memcached保存session数据为json的格式

回复内容：

找到了方案：

memcached = $memcached;
    }

    /**
     * Close session
     *
     * @return boolean
     */
    public function close()
    {
        return true;
    }

    /**
     * Destroy session
     *
     * @param string $id
     * @return boolean
     */
    public function destroy($id)
    {
        return $this->memcached->delete("sessions/{$id}");
    }

    /**
     * Garbage collect. Memcache handles this with expiration times.
     *
     * @param int $maxlifetime
     * @return boolean Always true
     */
    public function gc($maxlifetime)
    {
        // let memcached handle this with expiration time
        return true;
    }

    /**
     * Open session
     *
     * @param string $savePath
     * @param string $name
     * @return boolean
     */
    public function open($savePath, $name)
    {
        // Note: session save path is not used
        $this->sessionName = $name;
        $this->lifetime = ini_get('session.gc_maxlifetime');
        return true;
    }

    /**
     * Read session data
     *
     * @param string $id
     * @return string
     */
    public function read($id)
    {
        $_SESSION = json_decode($this->memcached->get("sessions/{$id}"), true);

        if (isset($_SESSION) && !empty($_SESSION) && $_SESSION != null)
        {
            return session_encode();
        }

        return '';
    }

    /**
     * Write session data
     *
     * @param string $id
     * @param string $data
     * @return boolean
     */
    public function write($id, $data)
    {
        // note: $data is not used as it has already been serialised by PHP,
        // so we use $_SESSION which is an unserialised version of $data.
        return $this->memcached->set("sessions/{$id}", json_encode($_SESSION),
            $this->lifetime);
    }
}

登录后复制

可以考虑下写库