Question

I’m stuck at a point in making mutual friends code for my website. I have read some of the posts here but it didn’t help.

here is my mysql query:

select *
from friend_list
where uid='7'
   and status=1
   and friend_id !='3'
union
select *
from friend_list
where uid='3'
   and status=1
   and friend_id !='7' 

this displays all the friends of login user and the friends of the profile i visit.
output is this —-

  id    uid     friend_id      status
  36    7         4              1
  39    7         5              1
  40    7         8              1
  1     3         4              1

from this table i want the freind_id 4 only as this is mutual.

Answer 1

SELECT *
FROM friend_list AS f
INNER JOIN friend_list AS mf ON f.friend_id = mf.friend_id
WHERE f.uid = 7
   AND f.status = 1
   AND mf.uid = 3
   AND mf.status = 1