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Select from multiple tables with laravel fluent query builder

I’m re-writing some PHP/MySQL to work with Laravel. One thing I would like to do is make the DB queries more succinct with the Fluent Query Builder but I’m a bit lost:

SELECT p.post_text, p.bbcode_uid, u.username, t.forum_id, t.topic_title, t.topic_time, t.topic_id, t.topic_poster
FROM phpbb_topics t, phpbb_posts p, phpbb_users u
WHERE t.forum_id = 9
AND p.post_id = t.topic_first_post_id
AND u.user_id = t.topic_poster
ORDER BY t.topic_time

This queries a phpbb forum and gets posts: enter image description here

How could I re-write this to make use of the Fluent Query Builder syntax?


Not tested but here is a start

return DB::table('phpbb_topics')
    ->join('phpbb_posts', 'phpbb_topics.topic_first_post_id', '=', 'phpbb_posts.post_id')
    ->join('phpbb_users', 'phpbb_topics.topic_poster', '=', 'phpbb_users.user_id')
    ->order_by('topic_time', 'desc')