allow fakerphp/faker to not be installed (#56953)

Author: SjorsO

composer.json

@@ -181,7 +181,7 @@
         "ably/ably-php": "Required to use the Ably broadcast driver (^1.0).",
         "aws/aws-sdk-php": "Required to use the SQS queue driver, DynamoDb failed job storage, and SES mail driver (^3.322.9).",
         "brianium/paratest": "Required to run tests in parallel (^7.0|^8.0).",
-        "fakerphp/faker": "Required to use the eloquent factory builder (^1.9.1).",
+        "fakerphp/faker": "Required to generate fake data using the fake() helper (^1.9.1).",
         "filp/whoops": "Required for friendly error pages in development (^2.14.3).",
         "laravel/tinker": "Required to use the tinker console command (^2.0).",
         "league/flysystem-aws-s3-v3": "Required to use the Flysystem S3 driver (^3.25.1).",

src/Illuminate/Database/DatabaseServiceProvider.php

@@ -96,6 +96,10 @@ protected function registerConnectionServices()
      */
     protected function registerFakerGenerator()
     {
+        if (! class_exists(FakerGenerator::class)) {
+            return;
+        }
+
         $this->app->singleton(FakerGenerator::class, function ($app, $parameters) {
             $locale = $parameters['locale'] ?? $app['config']->get('app.faker_locale', 'en_US');
 

src/Illuminate/Database/Eloquent/Factories/Factory.php

@@ -953,10 +953,14 @@ public static function dontExpandRelationshipsByDefault()
     /**
      * Get a new Faker instance.
      *
-     * @return \Faker\Generator
+     * @return \Faker\Generator|null
      */
     protected function withFaker()
     {
+        if (! class_exists(Generator::class)) {
+            return;
+        }
+
         return Container::getInstance()->make(Generator::class);
     }