如何用couchbase存储session
有两种常见方式:
1.采用memcache模式连接couchbase 只需两句修改:
- ini_set('session.save_handler', 'memcache');
- ini_set('session.save_path', 'tcp://couchbase_host:9999');
注意里面的9999是couchbase 里面创建的bucket的对外memcache端口,这种访问方式运行以memcache兼容的模式访问couchbase。
2.采用couchbase扩展添加一个sessionhandler如下:
- /****
- * php storage session with couchbase
- * by fushanlang@gmail.com
- */
- /***
- * SessionHandlerInterface is a internal interface only for PHP_VERSION>=5.4.0
- * so if interface_exists() false we need to define by yourself.
- */
- if (!interface_exists('SessionHandlerInterface')) {
- interface SessionHandlerInterface
- {
- public function close();
- public function destroy($session_id);
- public function gc($maxlifetime);
- public function open($save_path, $session_id);
- public function read($session_id);
- public function write($session_id, $session_data);
- }
- }
- /**
- * A reference implementation of a custom Couchbase session handler.
- */
- class CouchbaseSessionHandler implements SessionHandlerInterface
- {
- /**
- * Holds the Couchbase connection.
- */
- protected $_connection = null;
- /**
- * The Couchbase host and port.
- */
- protected $_host = null;
- /**
- * The Couchbase bucket name.
- */
- protected $_bucket = null;
- /**
- * The prefix to be used in Couchbase keynames.
- */
- protected $_keyPrefix = 'session:';
- /**
- * Define a expiration time of 10 minutes.
- */
- protected $_expire = 600;
- /**
- * Set the default configuration params on init.
- */
- public function __construct($host = '127.0.0.1:8091', $bucket = 'default')
- {
- $this->_host = $host;
- $this->_bucket = $bucket;
- }
- /**
- * Open the connection to Couchbase (called by PHP on `session_start()`)
- */
- public function open($savePath, $sessionName)
- {
- $this->_connection = new Couchbase($this->_host, '', '', $this->_bucket);
- return $this->_connection ? true : false;
- }
- /**
- * Close the connection. Called by PHP when the script ends.
- */
- public function close()
- {
- unset($this->_connection);
- return true;
- }
- /**
- * Read data from the session.
- */
- public function read($sessionId)
- {
- $key = $this->_keyPrefix . $sessionId;
- $result = $this->_connection->get($key);
- return $result ? : null;
- }
- /**
- * Write data to the session.
- */
- public function write($sessionId, $sessionData)
- {
- $key = $this->_keyPrefix . $sessionId;
- if (emptyempty($sessionData)) {
- return false;
- }
- $result = $this->_connection->set($key, $sessionData, $this->_expire);
- return $result ? true : false;
- }
- /**
- * Delete data from the session.
- */
- public function destroy($sessionId)
- {
- $key = $this->_keyPrefix . $sessionId;
- $result = $this->_connection->delete($key);
- return $result ? true : false;
- }
- /**
- * Run the garbage collection.
- */
- public function gc($maxLifetime)
- {
- return true;
- }
- }
- //usage example
- define('COUCHBASE_HOST_PORT','xxxxx:8091');
- define('COUCHBASE_BUCKET','session');
- if(class_exists('Couchbase')&&defined('COUCHBASE_HOST_PORT')&&defined('COUCHBASE_BUCKET')){
- $handler = new CouchbaseSessionHandler(COUCHBASE_HOST_PORT,COUCHBASE_BUCKET);
- if(version_compare(PHP_VERSION,'5.4.0')>=0){
- session_set_save_handler($handler,true);
- }else{
- session_set_save_handler(
- array($handler, 'open'),
- array($handler, 'close'),
- array($handler, 'read'),
- array($handler, 'write'),
- array($handler, 'destroy'),
- array($handler, 'gc'));
- }
- }
- session_start();
- 转自 http://www.fushanlang.com/blog/php-store-session-with-couchbase-2302/