php - how to get two rows from a table using join -


this code

 $query = $this->db         ->select('*')                 ->join('users receiver', 'receiver.user_id = messages.user1')         ->join('users sender', 'sender.user_id = messages.user2')         ->get('messages')->result_array();

this database

users table  user_id |username | datetime   1     | abc1   | 000000000   2     | abc2   | 000000000  messages table msg_id | user1 | user2 | msg   | timestamp   1    | 1     |  2    | hello | 000000000

i want records of 2 users sender , receiver. join give me record of last join. in case m getting record of sender. want output this

[0] => array     (         [user1] => stdclass object             (                 [id] => 1                 [username] => abc1                 [datetime] => 2016-11-07 03:00:00             )          [user2] => stdclass object             (                 [id] => 2                 [username] => abc2                 [datetime] => 2016-11-07 00:00:00             )          [message] => stdclass object             (                 [id] => 1                 [message] => hdf                 [timestamp] => 2016-11-06 08:43:26             )      )

thanks in advance

here sql create union query give 2 rows

select * messages m join users u on u.user_id = m.user1 union select * messages m join users u on u.user_id = m.user2;

or join statement 2 users in 1 row

select * messages m join users u1 on u1.user_id = m.user1 join users u2 on u2.user_id = m.user2;

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