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120 lines
3.4 KiB
PHP
120 lines
3.4 KiB
PHP
<?php
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namespace Think\Session\Driver;
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use think\Exception;
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class Redis implements \SessionHandlerInterface
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{
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/** @var \Redis */
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protected $handler = null;
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protected $config = [
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'host' => '127.0.0.1',
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'port' => 6379,
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'password' => null,
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'select' => 1,
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'expire' => 3600,
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'timeout' => 0,
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'persistent' => true,
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'session_name' => 'session_',
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];
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public function __construct($config = [])
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{
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$this->config['host'] = C("SESSION_REDIS_HOST") ? C("SESSION_REDIS_HOST") : $this->config['host'];
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$this->config['port'] = C("SESSION_REDIS_POST") ? C("SESSION_REDIS_POST") : $this->config['port'];
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$this->config['password'] = C("SESSION_REDIS_AUTH") ? C("SESSION_REDIS_AUTH") : $this->config['password'];
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$this->config['select'] = C("SESSION_REDIS_SELECT") ? C("SESSION_REDIS_SELECT") : $this->config['select'];
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$this->config['expire'] = C("SESSION_REDIS_EXPIRE") ? C("SESSION_REDIS_EXPIRE") : $this->config['expire'];
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$this->config['session_name'] = C('SESSION_PREFIX') ? C('SESSION_PREFIX') : $this->config['session_name'];
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$this->config['timeout'] = C('SESSION_CACHE_TIMEOUT') ? C('SESSION_CACHE_TIMEOUT') : $this->config['timeout'];
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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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* @param string $savePath
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* @param mixed $sessName
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* @return bool
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* @throws Exception
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*/
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public function open($savePath, $sessName)
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{
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// 检测php环境
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if (!extension_loaded('redis')) {
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throw new Exception('not support:redis');
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}
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$this->handler = new \Redis;
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// 建立连接
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$func = $this->config['persistent'] ? 'pconnect' : 'connect';
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$this->handler->$func($this->config['host'], $this->config['port'], $this->config['timeout']);
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if ('' != $this->config['password']) {
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$this->handler->auth($this->config['password']);
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}
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if (0 != $this->config['select']) {
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$this->handler->select($this->config['select']);
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}
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return true;
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}
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/**
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* 关闭Session
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* @access public
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*/
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public function close()
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{
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$this->gc(ini_get('session.gc_maxlifetime'));
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$this->handler->close();
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$this->handler = null;
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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 $sessID
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* @return string
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*/
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public function read($sessID)
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{
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return (string)$this->handler->get($this->config['session_name'] . $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 String $sessData
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* @return bool
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*/
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public function write($sessID, $sessData)
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{
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if ($this->config['expire'] > 0) {
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return $this->handler->setex($this->config['session_name'] . $sessID, $this->config['expire'], $sessData);
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} else {
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return $this->handler->set($this->config['session_name'] . $sessID, $sessData);
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}
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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 $sessID
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* @return bool
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*/
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public function destroy($sessID)
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{
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return $this->handler->delete($this->config['session_name'] . $sessID) > 0;
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}
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/**
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* Session 垃圾回收
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* @access public
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* @param string $sessMaxLifeTime
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* @return bool
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*/
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public function gc($sessMaxLifeTime)
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{
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return true;
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}
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} |