public static function get_session()
 {
     if (!isset(PhpSession::$instance)) {
         PhpSession::$instance = new PhpSession();
     }
     return PhpSession::$instance;
 }
 /**
  * Exclude object from result
  *
  * @param     PhpSession $phpSession Object to remove from the list of results
  *
  * @return    PhpSessionQuery The current query, for fluid interface
  */
 public function prune($phpSession = null)
 {
     if ($phpSession) {
         $this->addUsingAlias(PhpSessionPeer::SESSION_ID, $phpSession->getSessionId(), Criteria::NOT_EQUAL);
     }
     return $this;
 }
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 /**
  * 析构函数
  */
 public function __construct($config = array())
 {
     session_set_save_handler(array($this, 'open'), array($this, 'close'), array($this, 'read'), array($this, 'write'), array($this, 'destroy'), array($this, 'gc'));
     register_shutdown_function('session_write_close');
     parent::__construct($config);
 }
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 /**
  * Adds an object to the instance pool.
  *
  * Propel keeps cached copies of objects in an instance pool when they are retrieved
  * from the database.  In some cases -- especially when you override doSelect*()
  * methods in your stub classes -- you may need to explicitly add objects
  * to the cache in order to ensure that the same objects are always returned by doSelect*()
  * and retrieveByPK*() calls.
  *
  * @param      PhpSession $value A PhpSession object.
  * @param      string $key (optional) key to use for instance map (for performance boost if key was already calculated externally).
  */
 public static function addInstanceToPool(PhpSession $obj, $key = null)
 {
     if (Propel::isInstancePoolingEnabled()) {
         if ($key === null) {
             $key = (string) $obj->getSessionId();
         }
         // if key === null
         self::$instances[$key] = $obj;
     }
 }