db query docuemnt laarvel

$someVariable = Input::get("some_variable");

$results = DB::select( DB::raw("SELECT * FROM some_table WHERE some_col = '$someVariable'") );

DB::table('users')->where('name', Input::get('name'))->get();

$users = DB::table('users')
                ->whereDate('created_at', '2016-12-31')
                ->get();