Answers for "laravel model inner join"

Laravel 8 query builder, Inner Join Clause

use Illuminate\Support\Facades\DB;

$users = DB::table('users')
            ->join('contacts', 'users.id', '=', 'contacts.user_id')
            ->join('orders', 'users.id', '=', 'orders.user_id')
            ->select('users.*', 'contacts.phone', 'orders.price')
            ->get();

laravel eloquent join two models

Event::whereHas('participants', function ($query) {
    return $query->where('IDUser', '=', 1);
})->get();