public function unsetUserData($mKey)
    {
        if (empty($this->oSession)) {
            return $this;
        }

        $this->oSession->unset_userdata($mKey);
        return $this;
    }
public function unsetUserData($mKey)
    {
        if (empty($this->oSession)) {
            return $this;
        }

        $this->oSession->unset_userdata($mKey);
        return $this;
    }
public function unsetUserData ( $ mKey ) { if ( empty ( $ this -> oSession ) ) { return $ this ; } $ this -> oSession -> unset_userdata ( $ mKey ) ; return $ this ; }
Removes data from the session

@param mixed $mKey The key to set, or an associative array of key=>value pairs

@return $this
Removes data from the session