laravel eloquent raw sql code example

Example 1: laravel sql query

use Illuminate\Support\Facades\DB;

$users = DB::select('select * from users');

foreach ($users as $user) {
    echo $user->name;
}

Example 2: Writing into the database with one click laravel

public function manuelSignUP()
{
DB :: table("users") -> insertGetId
(
array("firstname" => "John", "lastname"=> "John",
"passwordHash" => "password", "userslevelID" => 2)
);

DB :: table("userlevel") -> insertGetID
  (

array("userlevelID" => $userlevelID, "name" => $name)
 );

 return view("pages.manualsignup");
 }