cache created faker instances

Author: taylorotwell

src/Illuminate/Database/DatabaseServiceProvider.php

@@ -13,6 +13,13 @@
 
 class DatabaseServiceProvider extends ServiceProvider
 {
+    /**
+     * The array of resolved Faker instances.
+     *
+     * @var array
+     */
+    protected static $fakers = [];
+
     /**
      * Bootstrap the application events.
      *
@@ -75,7 +82,13 @@ protected function registerConnectionServices()
     protected function registerEloquentFactory()
     {
         $this->app->singleton(FakerGenerator::class, function ($app, $parameters) {
-            return FakerFactory::create($parameters['locale'] ?? $app['config']->get('app.faker_locale', 'en_US'));
+            $locale = $parameters['locale'] ?? $app['config']->get('app.faker_locale', 'en_US');
+
+            if (! isset(static::$fakers[$locale])) {
+                static::$fakers[$locale] = FakerFactory::create($locale);;
+            }
+
+            return static::$fakers[$locale];
         });
 
         $this->app->singleton(EloquentFactory::class, function ($app) {