Create random users in laravel for test in facebook graph api using faker

composer.json

{
    //...
    "require": {
        "php": ">=5.5.9",
        "laravel/framework": "5.2.*",
        "facebook/php-sdk-v4": "^5.1"
    },
    "require-dev": {
        "fzaninotto/faker": "~1.4",
    }
    //....
}

create_users_table.php

<?php

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateUsersTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('users', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->string('email')->unique();
            $table->string('avatar')->nullable(); //optional
            $table->string('facebook_id')->unique();
//            $table->string('password'); //in my case, I only use facebook for authentication
            $table->rememberToken();
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::drop('users');
    }
}

DatabaseSeeder.php

<?php

use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
         $this->call(FacebookUsersSeeder::class);
    }
}
class FacebookUsersSeeder extends Seeder
{
    public function run(){
        $faker = \Faker\Factory::create();
        foreach(range(0,20) as $i) {
            $user = new App\User([
                'name' => "$faker->firstName $faker->lastName",
                'created_at' => $faker->dateTimeBetween('-6 years', 'now')
            ]);

            $facebook = new \Facebook\Facebook([
                'app_id' => env('FACEBOOK_APP_ID'),
                'app_secret' => env('FACEBOOK_APP_SECRET'),
            ]);

            $response = $facebook->post('/'.env('FACEBOOK_APP_ID').'/accounts/test-users',
                [
                    'name' => $user->name,
                    'password' => '123456',
                    'installed' => 'true',
                    'access_token' => env('FACEBOOK_ACCESS_TOKEN'),
                ]
            );
            if($response->getHttpStatusCode()===200){
                $fbUser = $response->getGraphUser();
                $user->facebook_id = $fbUser->getId();
                $user->email = $fbUser->getEmail();
                $user->save();
                $this->command->comment("User $i -> $user->name created succesfully");
            }
            else{
                $this->command->error("Error in request");
                break;
            }
        }
    }
}