时间:2021-07-01 10:21:17 帮助过:2人阅读
redis 替代php文件存储session的实例
查看实例之前请先了解 PHP session_set_save_handler函数的用法
定义个SessionManager 类
- class SessionManager {
- private $redis;
- public function __construct(){
- $this->redis = new Redis();
- $this->redis->connect('192.168.0.102', 6379);
- $retval =session_set_save_handler(
- array($this,"open"),
- array($this,"close"),
- array($this,"read"),
- array($this,"write"),
- array($this,"destroy"),
- array($this,"gc")
- );
- session_start();
- }
- public function open($path,$name){
- return true;
- }
- public function close(){
- return true;
- }
- public function read($id){
- $session_value = $this->redis->get($id);
- if($session_value){
- return $session_value;
- }else{
- return "";
- }
- }
- public function write($id,$data){
- if($this->redis->set($id,$data)){
- return true;
- }else{
- return false;
- }
- }
- public function destroy($id){
- if($this->redis->delete($id)){
- return true;
- }else{
- return false;
- }
- }
- public function gc($maxlifetime){
- return true;
- }
- public function __destruct(){
- session_write_close();
- }
- }
创建一个session_set.php 代码如下
- include("SessionManager.php");
- new SessionManager();
- $_SESSION['user_name']="xxdcsnd@sina.com";
创建一个session_set.php 代码如下
- include("SessionManager.php");
- new SessionManager();
- echo $_SESSION['user_name'];
测试输出 结果 xxdcsnd@sina.com
注意 :php.ini session.save-hadler 设置为 user ,否则session_set_save_handler 不会生效
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