how to LOCATE in laravel query code example

Example 1: laravel find query

// Retrieve a model by its primary key...
$flight = App\Models\Flight::find(1);

// Retrieve the first model matching the query constraints...
$flight = App\Models\Flight::where('active', 1)->first();

// Shorthand for retrieving the first model matching the query constraints...
$flight = App\Models\Flight::firstWhere('active', 1);

Example 2: laravel find query

$model = App\Models\Flight::where('legs', '>', 100)
            ->firstOr(['id', 'legs'], function () {
                // ...
            });