參考文檔https://blog.csdn.net/lipeigang1109/article/details/78664234
這是一個直接封裝好的類,複製粘貼即可使用(標紅的修改成自己的)。
強調一點,必須裝了redis的擴展才可使用(我安裝的是lnmp.org 地址https://lnmp.org/faq/addons.html)
class RedisSession implements SessionHandlerInterface
{
private $handle;
private $lifetime;
private $prefix = 'PHPSESSID:';
/**
* open session
* @param string $save_path
* @param string $session_name
* @return bool
*/
public function open($save_path, $session_name)
{
$this->handle = new Redis();
$this->handle->connect('r-2zef1d24c420b1f4.redis.rds.aliyuncs.com', '6379');//阿里的服務器,網址+端口
// redis 密碼
$this->handle->auth('******');//密碼
$this->handle->select('101');//第幾個數據庫,按需求讓使用第幾個改爲幾就行
// 過期時間設置
$this->lifetime = ini_get('session.gc_maxlifetime');
return true;
}
/**
* close session
* @return bool
*/
public function close()
{
$this->gc($this->lifetime);
$this->handle->close();
$this->handle = null;
return true;
}
/**
* read session by session_id
* @param string $session_id
* @return mixed
*/
public function read($session_id)
{
$session_id = $this->prefix . $session_id;
$data = $this->handle->get($session_id);
$this->handle->expire($session_id, $this->lifetime);
return $data;
}
/**
* write session by session_id
* @param string $session_id
* @param string $session_data
* @return mixed
*/
public function write($session_id, $session_data)
{
$session_id = $this->prefix . $session_id;
$this->handle->set($session_id, $session_data);
return $this->handle->expire($session_id, $this->lifetime);
}
/**
* delete session_id
* @param string $session_id
* @return mixed
*/
public function destroy($session_id)
{
return $this->handle->rm($this->prefix . $session_id);
}
/**
* this function is no use because of redis expire
* @param int $maxlifetime
* @return bool
*/
public function gc($maxlifetime)
{
return true;
}
}
$handler = new RedisSession();
// 設置用戶自定義會話存儲函數
session_set_save_handler($handler, true);
register_shutdown_function('session_write_close');
session_start();
$session = $_SESSION['test'] = 'test';
var_dump($session);