CodeIgniter adds row to table name

In my CodeIgniter project, I have separate tables for each user. for example tbl_user1, tbl_user2, tbl_user3, tbl_user4, etc., these 1,2,3,4 are user IDs.

after the user is logged in, I need to access the table that is associated with the user. (for example, for user 2, you need to get data from the tbl_user2 table).

I have a session variable containing a user id,

$uid=$this->session->userdata('uid');  //$uid=2 for **user 2**

      

        
        
        
      

    

how to use this with my model and controller,

ex. controller

$this->tbl_user('username'); //$this->tbl_user.$uid('username');

- does not work

ex. model

 $this->db->select('tbl_user.$uid.*', false);  - //not working
    $this->db->from('tbl_user.$uid'); - //not working

      

        
        
        
      

    

please advise.