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<?php |
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// +---------------------------------------------------------------------- |
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// | ThinkPHP [ WE CAN DO IT JUST THINK ] |
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// +---------------------------------------------------------------------- |
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// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved. |
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// +---------------------------------------------------------------------- |
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 ) |
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// +---------------------------------------------------------------------- |
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// | Author: liu21st <[email protected]> |
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// +---------------------------------------------------------------------- |
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declare (strict_types = 1); |
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namespace think\session\driver; |
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use think\Exception; |
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use think\session\SessionHandler; |
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class Memcache implements SessionHandler |
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{ |
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protected $handler = null; |
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protected $config = [ |
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'host' => '127.0.0.1', // memcache主机 |
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'port' => 11211, // memcache端口 |
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'expire' => 3600, // session有效期 |
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'timeout' => 0, // 连接超时时间（单位：毫秒） |
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'persistent' => true, // 长连接 |
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'prefix' => '', // session name （memcache key前缀） |
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]; |
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public function __construct(array $config = []) |
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{ |
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$this->config = array_merge($this->config, $config); |
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$this->init(); |
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} |
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/** |
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* 打开Session |
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* @access public |
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*/ |
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public function init(): bool |
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{ |
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// 检测php环境 |
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if (!extension_loaded('memcache')) { |
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throw new Exception('not support:memcache'); |
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} |
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$this->handler = new \Memcache; |
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// 支持集群 |
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$hosts = explode(',', $this->config['host']); |
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$ports = explode(',', $this->config['port']); |
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if (empty($ports[0])) { |
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$ports[0] = 11211; |
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} |
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// 建立连接 |
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foreach ($hosts as $i => $host) { |
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$port = $ports[$i] ?? $ports[0]; |
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$this->config['timeout'] > 0 ? |
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$this->handler->addServer($host, $port, $this->config['persistent'], 1, $this->config['timeout']) : |
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$this->handler->addServer($host, $port, $this->config['persistent'], 1); |
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} |
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return true; |
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} |
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/** |
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* 读取Session |
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* @access public |
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* @param string $sessID |
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* @return array |
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*/ |
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public function read(string $sessID): array |
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{ |
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return $this->handler->get($this->config['prefix'] . $sessID); |
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} |
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/** |
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* 写入Session |
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* @access public |
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* @param string $sessID |
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* @param array $data |
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* @return array |
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*/ |
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public function write(string $sessID, array $data): bool |
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{ |
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return $this->handler->set($this->config['prefix'] . $sessID, $data, 0, $this->config['expire']); |
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} |
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/** |
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* 删除Session |
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* @access public |
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* @param string $sessID |
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* @return array |
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*/ |
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public function delete(string $sessID): bool |
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{ |
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return $this->handler->delete($this->config['prefix'] . $sessID); |
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} |
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} |
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