how to delete from multiple tables using QB

Try with:

PHP Code:

"DELETE users, users_temp, user_settings FROM users INNER JOIN users_temp ON users.user_id = users_temp.utemp_user_id INNER JOIN user_settings
ON users.user_id = user_settings.uset_user_id WHERE users.user_id = $user_id"; 


Not sure if it will work, you have to test it though. MySQL official docs say next.