Question

I have this query:

select
    problem_comments.user_id ,
    problem_comment_id ,
    problem_id ,
    first_name  ,
    count(problem_comment_id) num
from problem_comments
left join users on problem_comments.user_id = users.user_id
where problem_id = 222
group by problem_comments.comment

and it is a basic join of a table where problems are listed and another table where comments for that problem are listed.

What I am trying to do with count(problem_comment_id) is see how many comments are in a problem so I can display that count. The problem with the current query is that it returns 3 rows because there are 3 comments for this problem. But in the column “num” it always lists 1.

How can I keep getting back the same data of problems and comments, but also get how many total comments there are?

Thanks!!

Answer 1

I see the php tag, so… You can use the num_rows functions after you execute the query.

Here is some information if you are using mysqli.

And for PDO.

If you’re using the mysql extension (and shame on you, if so!), you can use mysql_num_rows()