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thinkphp
2015-01-22 09:29:54 +08:00
parent 1df472b73e
commit b32d00b7f8
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library/think/session.php Normal file
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<?php
// +----------------------------------------------------------------------
// | TOPThink [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2011 http://topthink.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think;
class Session {
static protected $prefix = '';
/**
* 设置或者获取session作用域（前缀）
* @param string $prefix
* @return string|void
*/
static public function prefix($prefix=''){
if(empty($prefix)) {
return self::$config['prefix'];
}else{
self::$config['prefix'] = $prefix;
}
}
/**
* session初始化
* @param array $config
* @return void
*/
static public function init($config=[]) {
if(isset($config['prefix']))
self::$prefix = $config['prefix'];
if(isset($config['var_session_id']) && isset($_REQUEST[$config['var_session_id']])){
session_id($_REQUEST[$config['var_session_id']]);
}elseif(isset($config['id'])) {
session_id($config['id']);
}
ini_set('session.auto_start', 0);
if(isset($config['name']))
session_name($config['name']);
if(isset($config['path']))
session_save_path($config['path']);
if(isset($config['domain']))
ini_set('session.cookie_domain', $config['domain']);
if(isset($name['expire'])) {
ini_set('session.gc_maxlifetime', $name['expire']);
ini_set('session.cookie_lifetime', $name['expire']);
}
if(isset($config['use_trans_sid']))
ini_set('session.use_trans_sid', $config['use_trans_sid']?1:0);
if(isset($config['use_cookies']))
ini_set('session.use_cookies', $config['use_cookies']?1:0);
if(isset($config['cache_limiter']))
session_cache_limiter($config['cache_limiter']);
if(isset($config['cache_expire']))
session_cache_expire($config['cache_expire']);
if(!empty($config['type'])) { // 读取session驱动
$class = 'Think\\Session\\Driver\\'. ucwords(strtolower($config['type']));
// 检查驱动类
session_set_save_handler(new $class());
}
// 启动session
if($config['auto_start']) session_start();
}
/**
* session设置
* @param string $name session名称
* @param mixed $value session值
* @param string $prefix 作用域（前缀）
* @return void
*/
static public function set($name,$value='',$prefix='') {
$prefix = $prefix ? $prefix : self::$prefix;
if(strpos($name,'.')){
// 二维数组赋值
list($name1,$name2) = explode('.',$name);
if($prefix){
$_SESSION[$prefix][$name1][$name2] = $value;
}else{
$_SESSION[$name1][$name2] = $value;
}
}elseif($prefix){
$_SESSION[$prefix][$name] = $value;
}else{
$_SESSION[$name] = $value;
}
}
/**
* session获取
* @param string $name session名称
* @param string $prefix 作用域（前缀）
* @return mixed
*/
static public function get($name='',$prefix='') {
$prefix = $prefix ? $prefix : self::$prefix;
if(''==$name){
// 获取全部的session
$value = $prefix ? $_SESSION[$prefix] : $_SESSION;
}elseif($prefix){ // 获取session
if(strpos($name,'.')){
list($name1,$name2) = explode('.',$name);
$value = isset($_SESSION[$prefix][$name1][$name2])?$_SESSION[$prefix][$name1][$name2]:null;
}else{
$value = isset($_SESSION[$prefix][$name]) ? $_SESSION[$prefix][$name] : null;
}
}else{
if(strpos($name,'.')){
list($name1,$name2) = explode('.',$name);
$value = isset($_SESSION[$name1][$name2]) ? $_SESSION[$name1][$name2] : null;
}else{
$value = isset($_SESSION[$name]) ? $_SESSION[$name] : null;
}
}
return $value;
}
/**
* 删除session数据
* @param string $name session名称
* @param string $prefix 作用域（前缀）
* @return void
*/
static public function delete($name,$prefix='') {
$prefix = $prefix?$prefix:$this->prefix;
if(strpos($name,'.')){
list($name1,$name2) = explode('.',$name);
if($prefix){
unset($_SESSION[$prefix][$name1][$name2]);
}else{
unset($_SESSION[$name1][$name2]);
}
}else{
if($prefix){
unset($_SESSION[$prefix][$name]);
}else{
unset($_SESSION[$name]);
}
}
}
/**
* 清空session数据
* @param string $prefix 作用域（前缀）
* @return void
*/
static public function clear($prefix='') {
$prefix = $prefix?$prefix:self::$prefix;
if($prefix) {
unset($_SESSION[$prefix]);
}else{
$_SESSION = [];
}
}
/**
* 判断session数据
* @param string $name session名称
* @param mixed $value session值
* @return boolean
*/
static public function has($name,$prefix='') {
$prefix = $prefix ? $prefix : self::$prefix;
if(strpos($name,'.')){ // 支持数组
list($name1,$name2) = explode('.',$name);
return $prefix ? isset($_SESSION[$prefix][$name1][$name2]) : isset($_SESSION[$name1][$name2]);
}else{
return $prefix ? isset($_SESSION[$prefix][$name]) : isset($_SESSION[$name]);
}
}
/**
* session管理
* @param string $name session操作名称
* @return void
*/
static private function operate($name) {
if('pause'==$name){ // 暂停session
session_write_close();
}elseif('start'==$name){ // 启动session
session_start();
}elseif('destroy'==$name){ // 销毁session
$_SESSION = [];
session_unset();
session_destroy();
}elseif('regenerate'==$name){ // 重新生成id
session_regenerate_id();
}
}
static public function __callStatic($name,$args) {
self::operate($name);
}
}