session redis-优快云博客

本文介绍了一个使用PHP和Redis实现的自定义会话管理类。该类通过重写PHP的会话处理函数，实现了会话数据在Redis中的存储与读取。此外，还展示了如何初始化此类并设置会话变量。

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<?php
class SessionManager {
	private $redis;
	private $sessionSavePath;
	private $sessionName;
	private $sessionExpireTime = 30;
	
	public function __construct() {
		$this->redis = new redis();
		$this->redis->connect('10.204.79.197', 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($patn, $name) {
		return true;
	}
	public function close() {
		return true;
	}
	public function read($id) {
		$value = $this->redis->get($id);
		return $value?$value:'';
	}
	public function write($id, $data) {
		if($this->redis->set($id,$data)) {
			$this->redis->expire($id, $this->sessionExpireTime);
			return true;
		} else {
			return false;
		}
	}
	public function destroy($id) {
		if($this->redis->delete($id)) {
			return true;
		} else {
			return false;
		}
	}
	public function gc($maxlifetime) {
		return true;
	}
	public function __destruct(){
		session_write_close();
	}
}

?>

<?php 
include "test_c.php";
new SessionManager();
$_SESSION['username'] = 'ttt';
$_SESSION['xxxxx'] = 'rrrr';
echo 'set sucess';
?>

<?php 
include "test_c.php";
new SessionManager();
echo $_SESSION['xxxxx'];
?>