PHP Session操作类

发布时间:2016-12-11 12:23:48 编辑:www.fx114.net 分享查询网我要评论
本篇文章主要介绍了"PHP Session操作类",主要涉及到PHP Session操作类方面的内容,对于PHP Session操作类感兴趣的同学可以参考一下。

<?php define("HTTP_SESSION_STARTED", 1); define("HTTP_SESSION_CONTINUED", 2); /** +------------------------------------------------------------------------------ * Session管理类 +------------------------------------------------------------------------------ * @category Think * @package Think * @subpackage Util * @author liu21st <[email protected]> * @version $Id: Session.class.php 2702 2012-02-02 12:35:01Z liu21st $ +------------------------------------------------------------------------------ */ class Session { /** +---------------------------------------------------------- * 启动Session +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function start() { session_start(); if (!isset($_SESSION['__HTTP_Session_Info'])) { $_SESSION['__HTTP_Session_Info'] = HTTP_SESSION_STARTED; } else { $_SESSION['__HTTP_Session_Info'] = HTTP_SESSION_CONTINUED; } Session::setExpire(C('SESSION_EXPIRE')); } /** +---------------------------------------------------------- * 暂停Session +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function pause() { session_write_close(); } /** +---------------------------------------------------------- * 清空Session +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function clearLocal() { $local = Session::localName(); unset($_SESSION[$local]); } /** +---------------------------------------------------------- * 清空Session +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function clear() { $_SESSION = array(); } /** +---------------------------------------------------------- * 销毁Session +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function destroy() { unset($_SESSION); session_destroy(); } /** +---------------------------------------------------------- * 检测SessionID +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function detectID() { if(session_id()!='') { return session_id(); } if (Session::useCookies()) { if (isset($_COOKIE[Session::name()])) { return $_COOKIE[Session::name()]; } } else { if (isset($_GET[Session::name()])) { return $_GET[Session::name()]; } if (isset($_POST[Session::name()])) { return $_POST[Session::name()]; } } return null; } /** +---------------------------------------------------------- * 设置或者获取当前Session name +---------------------------------------------------------- * @param string $name session名称 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return string 返回之前的Session name +---------------------------------------------------------- */ static function name($name = null) { return isset($name) ? session_name($name) : session_name(); } /** +---------------------------------------------------------- * 设置或者获取当前SessionID +---------------------------------------------------------- * @param string $id sessionID +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void 返回之前的sessionID +---------------------------------------------------------- */ static function id($id = null) { return isset($id) ? session_id($id) : session_id(); } /** +---------------------------------------------------------- * 设置或者获取当前Session保存路径 +---------------------------------------------------------- * @param string $path 保存路径名 +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ static function path($path = null) { return !empty($path)? session_save_path($path):session_save_path(); } /** +---------------------------------------------------------- * 设置Session 过期时间 +---------------------------------------------------------- * @param integer $time 过期时间 * @param boolean $add 是否为增加时间 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function setExpire($time, $add = false) { if ($add) { if (!isset($_SESSION['__HTTP_Session_Expire_TS'])) { $_SESSION['__HTTP_Session_Expire_TS'] = time() + $time; } // update session.gc_maxlifetime $currentGcMaxLifetime = Session::setGcMaxLifetime(null); Session::setGcMaxLifetime($currentGcMaxLifetime + $time); } elseif (!isset($_SESSION['__HTTP_Session_Expire_TS'])) { $_SESSION['__HTTP_Session_Expire_TS'] = $time; } } /** +---------------------------------------------------------- * 设置Session 闲置时间 +---------------------------------------------------------- * @param integer $time 闲置时间 * @param boolean $add 是否为增加时间 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function setIdle($time, $add = false) { if ($add) { $_SESSION['__HTTP_Session_Idle'] = $time; } else { $_SESSION['__HTTP_Session_Idle'] = $time - time(); } } /** +---------------------------------------------------------- * 取得Session 有效时间 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function sessionValidThru() { if (!isset($_SESSION['__HTTP_Session_Idle_TS']) || !isset($_SESSION['__HTTP_Session_Idle'])) { return 0; } else { return $_SESSION['__HTTP_Session_Idle_TS'] + $_SESSION['__HTTP_Session_Idle']; } } /** +---------------------------------------------------------- * 检查Session 是否过期 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function isExpired() { if (isset($_SESSION['__HTTP_Session_Expire_TS']) && $_SESSION['__HTTP_Session_Expire_TS'] < time()) { return true; } else { return false; } } /** +---------------------------------------------------------- * 检查Session 是否闲置 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function isIdle() { if (isset($_SESSION['__HTTP_Session_Idle_TS']) && (($_SESSION['__HTTP_Session_Idle_TS'] + $_SESSION['__HTTP_Session_Idle']) < time())) { return true; } else { return false; } } /** +---------------------------------------------------------- * 更新Session 闲置时间 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ static function updateIdle() { $_SESSION['__HTTP_Session_Idle_TS'] = time(); } /** +---------------------------------------------------------- * 设置Session 对象反序列化时候的回调函数 * 返回之前设置 +---------------------------------------------------------- * @param string $callback 回调函数方法名 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function setCallback($callback = null) { $return = ini_get('unserialize_callback_func'); if (!empty($callback)) { ini_set('unserialize_callback_func',$callback); } return $return; } /** +---------------------------------------------------------- * 设置Session 是否使用cookie * 返回之前设置 +---------------------------------------------------------- * @param boolean $useCookies 是否使用cookie +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function useCookies($useCookies = null) { $return = ini_get('session.use_cookies') ? true : false; if (isset($useCookies)) { ini_set('session.use_cookies', $useCookies ? 1 : 0); } return $return; } /** +---------------------------------------------------------- * 检查Session 是否新建 +---------------------------------------------------------- * @param boolean $useCookies 是否使用cookie +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function isNew() { return !isset($_SESSION['__HTTP_Session_Info']) || $_SESSION['__HTTP_Session_Info'] == HTTP_SESSION_STARTED; } /** +---------------------------------------------------------- * 取得当前项目的Session 值 * 返回之前设置 +---------------------------------------------------------- * @param string $name +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function getLocal($name) { $local = Session::localName(); if (!is_array($_SESSION[$local])) { $_SESSION[$local] = array(); } return $_SESSION[$local][$name]; } /** +---------------------------------------------------------- * 取得当前项目的Session 值 * 返回之前设置 +---------------------------------------------------------- * @param string $name +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function get($name) { if(isset($_SESSION[$name])) { return $_SESSION[$name]; }else { return null; } } /** +---------------------------------------------------------- * 设置当前项目的Session 值 * 返回之前设置 +---------------------------------------------------------- * @param string $name * @param mixed $value +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function setLocal($name, $value) { $local = Session::localName(); if (!is_array($_SESSION[$local])) { $_SESSION[$local] = array(); } if (null === $value) { unset($_SESSION[$local][$name]); } else { $_SESSION[$local][$name] = $value; } return; } /** +---------------------------------------------------------- * 设置当前项目的Session 值 * 返回之前设置 +---------------------------------------------------------- * @param string $name * @param mixed $value +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function set($name, $value) { if (null === $value) { unset($_SESSION[$name]); } else { $_SESSION[$name] = $value; } return ; } /** +---------------------------------------------------------- * 检查Session 值是否已经设置 +---------------------------------------------------------- * @param string $name +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function is_setLocal($name) { $local = Session::localName(); return isset($_SESSION[$local][$name]); } /** +---------------------------------------------------------- * 检查Session 值是否已经设置 +---------------------------------------------------------- * @param string $name +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function is_set($name) { return isset($_SESSION[$name]); } /** +---------------------------------------------------------- * 设置或者获取 Session localname +---------------------------------------------------------- * @param string $name +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ static function localName($name = null) { $return = (isset($GLOBALS['__HTTP_Session_Localname'])) ? $GLOBALS['__HTTP_Session_Localname'] : null; if (!empty($name)) { $GLOBALS['__HTTP_Session_Localname'] = md5($name); } return $return; } /** +---------------------------------------------------------- * Session 初始化 +---------------------------------------------------------- * @static * @access private +---------------------------------------------------------- * @return boolean +---------------------------------------------------------- */ static function _init() { ini_set('session.auto_start', 0); if (is_null(Session::detectID())) { Session::id(uniqid(dechex(mt_rand()))); } // 设置Session有效域名 Session::setCookieDomain(C('COOKIE_DOMAIN')); //设置当前项目运行脚本作为Session本地名 Session::localName(APP_NAME); Session::name(C('SESSION_NAME')); Session::path(C('SESSION_PATH')); Session::setCallback(C('SESSION_CALLBACK')); } /** +---------------------------------------------------------- * 设置Session use_trans_sid * 返回之前设置 +---------------------------------------------------------- * @param string $useTransSID +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ static function useTransSID($useTransSID = null) { $return = ini_get('session.use_trans_sid') ? true : false; if (isset($useTransSID)) { ini_set('session.use_trans_sid', $useTransSID ? 1 : 0); } return $return; } /** +---------------------------------------------------------- * 设置Session cookie_domain * 返回之前设置 +---------------------------------------------------------- * @param string $sessionDomain +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ static function setCookieDomain($sessionDomain = null) { $return = ini_get('session.cookie_domain'); if(!empty($sessionDomain)) { ini_set('session.cookie_domain', $sessionDomain);//跨域访问Session } return $return; } /** +---------------------------------------------------------- * 设置Session gc_maxlifetime值 * 返回之前设置 +---------------------------------------------------------- * @param string $gc_maxlifetime +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ static function setGcMaxLifetime($gcMaxLifetime = null) { $return = ini_get('session.gc_maxlifetime'); if (isset($gcMaxLifetime) && is_int($gcMaxLifetime) && $gcMaxLifetime >= 1) { ini_set('session.gc_maxlifetime', $gcMaxLifetime); } return $return; } /** +---------------------------------------------------------- * 设置Session gc_probability 值 * 返回之前设置 +---------------------------------------------------------- * @param string $gc_maxlifetime +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ static function setGcProbability($gcProbability = null) { $return = ini_get('session.gc_probability'); if (isset($gcProbability) && is_int($gcProbability) && $gcProbability >= 1 && $gcProbability <= 100) { ini_set('session.gc_probability', $gcProbability); } return $return; } /** +---------------------------------------------------------- * 当前Session文件名 +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ static function getFilename() { return Session::path().'/sess_'.session_id(); } }//类定义结束 Session::_init();

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