~~~ <?php /** * Created by gather * Email: chenruiqiang@yd-x.com * Phone: 16601180687 * Copyright:源动互通（北京）科技有限公司 * Create Time: 2018/5/28 19:12 * 使用Redis管理session */ class redisSession{ /** * 保存session的数据库表的信息 */ private $_options = array( 'handler' => null, //数据库连接句柄 'host' => null, 'port' => null, 'lifeTime' => null, 'prefix' => 'PHPREDIS_SESSION:' ); /** * 构造函数 * @param $options 设置信息数组 */ public function __construct($options=array()){ if(!class_exists("redis", false)){ die("必须安装redis扩展"); } if(!isset($options['lifeTime']) || $options['lifeTime'] <= 0){ $options['lifeTime'] = ini_get('session.gc_maxlifetime'); } $this->_options = array_merge($this->_options, $options); } /** * 开始使用该驱动的session */ public function begin(){ if($this->_options['host'] === null || $this->_options['port'] === null || $this->_options['lifeTime'] === null ){ return false; } //设置session处理函数 session_set_save_handler( array($this, 'open'), array($this, 'close'), array($this, 'read'), array($this, 'write'), array($this, 'destory'), array($this, 'gc') ); } /** * 自动开始回话或者session_start()开始回话后第一个调用的函数 * 类似于构造函数的作用 * @param $savePath 默认的保存路径 * @param $sessionName 默认的参数名，PHPSESSID */ public function open($savePath, $sessionName){ if(is_resource($this->_options['handler'])) return true; //连接redis $redisHandle = new Redis(); $redisHandle->connect($this->_options['host'], $this->_options['port']); if(!$redisHandle){ return false; } $this->_options['handler'] = $redisHandle; // $this->gc(null); return true; } /** * 类似于析构函数，在write之后调用或者session_write_close()函数之后调用 */ public function close(){ return $this->_options['handler']->close(); } /** * 读取session信息 * @param $sessionId 通过该Id唯一确定对应的session数据 * @return session信息/空串 */ public function read($sessionId){ $sessionId = $this->_options['prefix'].$sessionId; return $this->_options['handler']->get($sessionId); } /** * 写入或者修改session数据 * @param $sessionId 要写入数据的session对应的id * @param $sessionData 要写入的数据，已经序列化过了 */ public function write($sessionId, $sessionData){ $sessionId = $this->_options['prefix'].$sessionId; return $this->_options['handler']->setex($sessionId, $this->_options['lifeTime'], $sessionData); } /** * 主动销毁session会话 * @param $sessionId 要销毁的会话的唯一id */ public function destory($sessionId){ $sessionId = $this->_options['prefix'].$sessionId; // $array = $this->print_stack_trace(); // log::write($array); return $this->_options['handler']->delete($sessionId) >= 1 ? true : false; } /** * 清理绘画中的过期数据 * @param 有效期 */ public function gc($lifeTime){ //获取所有sessionid，让过期的释放掉 //$this->_options['handler']->keys("*"); return true; } //打印堆栈信息 public function print_stack_trace() { $array = debug_backtrace (); //截取用户信息 $var = $this->read(session_id()); $s = strpos($var, "index_dk_user|"); $e = strpos($var, "}authId|"); $user = substr($var,$s+14,$e-13); $user = unserialize($user); //print_r($array);//信息很齐全 unset ( $array [0] ); if(!empty($user)){ $traceInfo = $user['id'].'|'.$user['user_name'].'|'.$user['user_phone'].'|'.$user['presona_name'].'++++++++++++++++\n'; }else{ $traceInfo = '++++++++++++++++\n'; } $time = date ( "y-m-d H:i:m" ); foreach ( $array as $t ) { $traceInfo .= '[' . $time . '] ' . $t ['file'] . ' (' . $t ['line'] . ') '; $traceInfo .= $t ['class'] . $t ['type'] . $t ['function'] . '('; $traceInfo .= implode ( ', ', $t ['args'] ); $traceInfo .= ")\n"; } $traceInfo .= '++++++++++++++++'; return $traceInfo; } } ~~~ 入口处调用 ~~~ $handler = new redisSession(array( 'host' => "127.0.0.1", 'port' => "6379" )); $handler->begin(); ~~~