我如何获取id和ip_address并在Codeigniter的ci_session表中添加一列user_id并添加一

Question

1. how can I get the id (session id) from ci_session table
2. I added user_id field in ci_session table but I do not know how can I set and get this field

Answer 1

1. You could use the $this->session->session_id to get the session id.
2. You could use $this->session->set_userdata('user_id','value'); to save value into user_id column, and $this->session->userdata('user_id'); to retrieve that value .

Edit

If you still want to update the table column, you could using the old way :

$this->db->where('id', session_id());
$this->db->update($this->config->item('sess_save_path'), array('user_id'=>'1111'));