I don't remember exactly, but i was working on my laravel 5+ application 2 months ago. At that moment i require to write subquery in select statement. I simply write in my mysql query and check it's work perfect. But i though how can it possible to write using laravel query builder.
So first i am going to explain what was that. I have two tables "posts" and "post_viewer". I have to simple count viewer post vise. So i have structure was like as bellow:
posts
id, name, detail, created_at, updated_at
post_viewer
id, post_id, user_id
So, i written following mysql query you can simply read.
Mysql Query:
SELECT
posts.*,
(SELECT count(*) FROM post_viewer
WHERE post_viewer.post_id = posts.id
) as total_viewer
FROM `posts`
I think now you can understand, what was the issue. So finally i found solution using DB::raw(). So let's see bellow laravel convert query.
Laravel Query Builder:
$data = \DB::table("posts")
->select("posts.*",
\DB::raw("(SELECT count(*) FROM post_viewer
WHERE post_viewer.post_id = posts.id
) as total_viewer"))
->get();
I hope you found your best solution....