php使用redis实现分布式共享

1.php.ini里头配置 $redis_config = ['host' => '192.168.200.229', 'port' => 6379];

@ini_set("session.save_handler", "redis");

@ini_set("session.save_path", 'tcp://'.$redis_config['host'].':'.$redis_config['port']);

session_start();

$_SESSION['user_id'] = 123;

$_SESSION['user_name'] = 'helin';

$_SESSION['email'] = 'xxxxxx@163.com';

$session_id = session_id();

echo $session_id;

//ssr242gfioap1auk0njtdg07q4

echo "
";

$redis = new redis();

$redis->connect($redis_config['host'], $redis_config['port']);

// redis 用 session_id 作为 key 并且是以 string 的形式存储

echo $redis->get('PHPREDIS_SESSION:' .$session_id);

//user_id|i:123;user_name|s:5:"helin";email|s:14:"xxxxxx@163.com";

echo "
";

echo json_encode($_SESSION);

//{"user_id":123,"user_name":"helin","email":"xxxxxx@163.com"}

exit;

2.php程序使用session_set_save_handler 可以参考 tp SessionRedis

/**

• redis session

• Class SessionRedis */ class SessionRedis {

  public $prefix = 'ucenter_sessoin_'; /**

  • Session有效时间 */ protected $lifeTime = '';

  /**

  • 数据库句柄 */ protected $redis = array();

  /**

  • 打开Session
  • @access public
  • @param string $savePath
  • @param mixed $sessName */ public function open($savePath, sessName) { this->lifeTime = C('SESSION_EXPIRE')?C('SESSION_EXPIRE'):ini_get('session.gc_maxlifetime'); $this->redis = new CacheRedis(); return true; }

  /**

  • 关闭Session
  • @access public */ public function close() { return $this->redis->handler->close(); }

  /**

  • 读取Session
  • @access public
  • @param string $sessID */ public function read($sessID) { $data =$this->redis->get($this->prefix.$sessID); $data = unserialize($data); return $data; }

  /**

  • 写入Session

  • @access public

  • @param string $sessID

  • @param String $sessData */ public function write($sessID,sessData) { //expire = time() + $this->lifeTime;

    $this->redis->set($this->prefix.$sessID,serialize($sessData),$this->lifeTime); return true; }

  /**

  • 删除Session
  • @access public
  • @param string $sessID */ public function destroy($sessID) { return $this->redis->rm($this->prefix.$sessID); }

  /**

  • Session 垃圾回收
  • @access public
  • @param string $sessMaxLifeTime */ public function gc($sessMaxLifeTime) { return true; }

  /**

  • 打开Session

  • @access public */ public function execute() { session_set_save_handler(array(&this,"open"), array(&this,"close"), array(&this,"read"), array(&this,"write"), array(&this,"destroy"), array(&this,"gc")); } } ————————————————

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原文链接：blog.csdn.net/qq_24700495…