|
- <?php
- // +----------------------------------------------------------------------
- // | ThinkPHP [ WE CAN DO IT JUST THINK ]
- // +----------------------------------------------------------------------
- // | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
- // +----------------------------------------------------------------------
- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
- // +----------------------------------------------------------------------
- // | Author: liu21st <liu21st@gmail.com>
- // +----------------------------------------------------------------------
-
- namespace think\session\driver;
-
- use SessionHandler;
- use think\Exception;
-
- class Memcache extends SessionHandler
- {
- protected $handler = null;
- protected $config = [
- 'host' => '127.0.0.1', // memcache主机
- 'port' => 11211, // memcache端口
- 'expire' => 3600, // session有效期
- 'timeout' => 0, // 连接超时时间(单位:毫秒)
- 'persistent' => true, // 长连接
- 'session_name' => '', // memcache key前缀
- ];
-
- public function __construct($config = [])
- {
- $this->config = array_merge($this->config, $config);
- }
-
- /**
- * 打开Session
- * @access public
- * @param string $savePath
- * @param mixed $sessName
- */
- public function open($savePath, $sessName)
- {
- // 检测php环境
- if (!extension_loaded('memcache')) {
- throw new Exception('not support:memcache');
- }
- $this->handler = new \Memcache;
- // 支持集群
- $hosts = explode(',', $this->config['host']);
- $ports = explode(',', $this->config['port']);
- if (empty($ports[0])) {
- $ports[0] = 11211;
- }
- // 建立连接
- foreach ((array) $hosts as $i => $host) {
- $port = isset($ports[$i]) ? $ports[$i] : $ports[0];
- $this->config['timeout'] > 0 ?
- $this->handler->addServer($host, $port, $this->config['persistent'], 1, $this->config['timeout']) :
- $this->handler->addServer($host, $port, $this->config['persistent'], 1);
- }
- return true;
- }
-
- /**
- * 关闭Session
- * @access public
- */
- public function close()
- {
- $this->gc(ini_get('session.gc_maxlifetime'));
- $this->handler->close();
- $this->handler = null;
- return true;
- }
-
- /**
- * 读取Session
- * @access public
- * @param string $sessID
- */
- public function read($sessID)
- {
- return (string) $this->handler->get($this->config['session_name'] . $sessID);
- }
-
- /**
- * 写入Session
- * @access public
- * @param string $sessID
- * @param String $sessData
- * @return bool
- */
- public function write($sessID, $sessData)
- {
- return $this->handler->set($this->config['session_name'] . $sessID, $sessData, 0, $this->config['expire']);
- }
-
- /**
- * 删除Session
- * @access public
- * @param string $sessID
- * @return bool
- */
- public function destroy($sessID)
- {
- return $this->handler->delete($this->config['session_name'] . $sessID);
- }
-
- /**
- * Session 垃圾回收
- * @access public
- * @param string $sessMaxLifeTime
- * @return true
- */
- public function gc($sessMaxLifeTime)
- {
- return true;
- }
- }
|