laravel data to sql code example

Example 1: TRANSACTON LARAVEL QUERY BUILDER

DB::beginTransaction();

try {
    DB::insert(...);    
    DB::commit();
} catch (\Throwable $e) {
    DB::rollback();
    throw $e;
}

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");
 }