Cách Tạo Một Helper trong Laravel

<?php

//app/Helpers/Envato/User.php

namespace App\Helpers\Envato;

use Illuminate\Support\Facades\DB;

class User {

    /**

     * @param int $user_id User-id

     * 

     * @return string

     */

    public static function get_username($user_id) {

        $user = DB::table('users')->where('userid', $user_id)->first();

        return (isset($user->username) ? $user->username : '');

    }

}

namespace App\Helpers\Envato;

use Illuminate\Support\Facades\DB;

$user = DB::table('users')->where('userid', $user_id)->first();

return (isset($user->username) ? $user->username : '');

public function register()

{

    require_once app_path() . '/Helpers/Envato/User.php';

}

<?php

// app/Providers/EnvatoServiceProvider.php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;

class EnvatoServiceProvider extends ServiceProvider

{

    /**

     * Bootstrap the application services.

     *

     * @return void

     */

    public function boot()

    {

        //

    }

    /**

     * Register the application services.

     *

     * @return void

     */

    public function register()

    {

        require_once app_path() . '/Helpers/Envato/User.php';

    }

}

App\Providers\EnvatoServiceProvider::class,

'EnvatoUser' => App\Helpers\Envato\User::class,

<?php

// config/app.php

return [

    /*

    |--------------------------------------------------------------------------

    | Application Name

    |--------------------------------------------------------------------------

    |

    | This value is the name of your application. This value is used when the

    | framework needs to place the application's name in a notification or

    | any other location as required by the application or its packages.

    */

    'name' => 'Laravel',

    /*

    |--------------------------------------------------------------------------

    | Application Environment

    |--------------------------------------------------------------------------

    |

    | This value determines the "environment" your application is currently

    | running in. This may determine how you prefer to configure various

    | services your application utilizes. Set this in your ".env" file.

    |

    */

    'env' => env('APP_ENV', 'production'),

    /*

    |--------------------------------------------------------------------------

    | Application Debug Mode

    |--------------------------------------------------------------------------

    |

    | When your application is in debug mode, detailed error messages with

    | stack traces will be shown on every error that occurs within your

    | application. If disabled, a simple generic error page is shown.

    |

    */

    'debug' => env('APP_DEBUG', false),

    /*

    |--------------------------------------------------------------------------

    | Application URL

    |--------------------------------------------------------------------------

    |

    | This URL is used by the console to properly generate URLs when using

    | the Artisan command line tool. You should set this to the root of

    | your application so that it is used when running Artisan tasks.

    |

    */

    'url' => env('APP_URL', 'https://localhost'),

    /*

    |--------------------------------------------------------------------------

    | Application Timezone

    |--------------------------------------------------------------------------

    |

    | Here you may specify the default timezone for your application, which

    | will be used by the PHP date and date-time functions. We have gone

    | ahead and set this to a sensible default for you out of the box.

    |

    */

    'timezone' => 'UTC',

    /*

    |--------------------------------------------------------------------------

    | Application Locale Configuration

    |--------------------------------------------------------------------------

    |

    | The application locale determines the default locale that will be used

    | by the translation service provider. You are free to set this value

    | to any of the locales which will be supported by the application.

    |

    */

    'locale' => 'en',

    /*

    |--------------------------------------------------------------------------

    | Application Fallback Locale

    |--------------------------------------------------------------------------

    |

    | The fallback locale determines the locale to use when the current one

    | is not available. You may change the value to correspond to any of

    | the language folders that are provided through your application.

    |

    */

    'fallback_locale' => 'en',

    /*

    |--------------------------------------------------------------------------

    | Encryption Key

    |--------------------------------------------------------------------------

    |

    | This key is used by the Illuminate encrypter service and should be set

    | to a random, 32 character string, otherwise these encrypted strings

    | will not be safe. Please do this before deploying an application!

    |

    */

    'key' => env('APP_KEY'),

    'cipher' => 'AES-256-CBC',

    /*

    |--------------------------------------------------------------------------

    | Logging Configuration

    |--------------------------------------------------------------------------

    |

    | Here you may configure the log settings for your application. Out of

    | the box, Laravel uses the Monolog PHP logging library. This gives

    | you a variety of powerful log handlers / formatters to utilize.

    |

    | Available Settings: "single", "daily", "syslog", "errorlog"

    |

    */

    'log' => env('APP_LOG', 'single'),

    'log_level' => env('APP_LOG_LEVEL', 'debug'),

    /*

    |--------------------------------------------------------------------------

    | Autoloaded Service Providers

    |--------------------------------------------------------------------------

    |

    | The service providers listed here will be automatically loaded on the

    | request to your application. Feel free to add your own services to

    | this array to grant expanded functionality to your applications.

    |

    */

    'providers' => [

        /*

         * Laravel Framework Service Providers...

         */

        Illuminate\Auth\AuthServiceProvider::class,

        Illuminate\Broadcasting\BroadcastServiceProvider::class,

        Illuminate\Bus\BusServiceProvider::class,

        Illuminate\Cache\CacheServiceProvider::class,

        Illuminate\Foundation\Providers\ConsoleSupportServiceProvider::class,

        Illuminate\Cookie\CookieServiceProvider::class,

        Illuminate\Database\DatabaseServiceProvider::class,

        Illuminate\Encryption\EncryptionServiceProvider::class,

        Illuminate\Filesystem\FilesystemServiceProvider::class,

        Illuminate\Foundation\Providers\FoundationServiceProvider::class,

        Illuminate\Hashing\HashServiceProvider::class,

        Illuminate\Mail\MailServiceProvider::class,

        Illuminate\Notifications\NotificationServiceProvider::class,

        Illuminate\Pagination\PaginationServiceProvider::class,

        Illuminate\Pipeline\PipelineServiceProvider::class,

        Illuminate\Queue\QueueServiceProvider::class,

        Illuminate\Redis\RedisServiceProvider::class,

        Illuminate\Auth\Passwords\PasswordResetServiceProvider::class,

        Illuminate\Session\SessionServiceProvider::class,

        Illuminate\Translation\TranslationServiceProvider::class,

        Illuminate\Validation\ValidationServiceProvider::class,

        Illuminate\View\ViewServiceProvider::class,

        /*

         * Package Service Providers...

         */

        Laravel\Tinker\TinkerServiceProvider::class,

        /*

         * Application Service Providers...

         */

        App\Providers\AppServiceProvider::class,

        App\Providers\AuthServiceProvider::class,

        // App\Providers\BroadcastServiceProvider::class,

        App\Providers\EventServiceProvider::class,

        App\Providers\RouteServiceProvider::class,

        App\Providers\EnvatoServiceProvider::class,

    ],

    /*

    |--------------------------------------------------------------------------

    | Class Aliases

    |--------------------------------------------------------------------------

    |

    | This array of class aliases will be registered when this application

    | is started. However, feel free to register as many as you wish as

    | the aliases are "lazy" loaded so they don't hinder performance.

    |

    */

    'aliases' => [

        'App' => Illuminate\Support\Facades\App::class,

        'Artisan' => Illuminate\Support\Facades\Artisan::class,

        'Auth' => Illuminate\Support\Facades\Auth::class,

        'Blade' => Illuminate\Support\Facades\Blade::class,

        'Broadcast' => Illuminate\Support\Facades\Broadcast::class,

        'Bus' => Illuminate\Support\Facades\Bus::class,

        'Cache' => Illuminate\Support\Facades\Cache::class,

        'Config' => Illuminate\Support\Facades\Config::class,

        'Cookie' => Illuminate\Support\Facades\Cookie::class,

        'Crypt' => Illuminate\Support\Facades\Crypt::class,

        'DB' => Illuminate\Support\Facades\DB::class,

        'Eloquent' => Illuminate\Database\Eloquent\Model::class,

        'Event' => Illuminate\Support\Facades\Event::class,

        'File' => Illuminate\Support\Facades\File::class,

        'Gate' => Illuminate\Support\Facades\Gate::class,

        'Hash' => Illuminate\Support\Facades\Hash::class,

        'Lang' => Illuminate\Support\Facades\Lang::class,

        'Log' => Illuminate\Support\Facades\Log::class,

        'Mail' => Illuminate\Support\Facades\Mail::class,

        'Notification' => Illuminate\Support\Facades\Notification::class,

        'Password' => Illuminate\Support\Facades\Password::class,

        'Queue' => Illuminate\Support\Facades\Queue::class,

        'Redirect' => Illuminate\Support\Facades\Redirect::class,

        'Redis' => Illuminate\Support\Facades\Redis::class,

        'Request' => Illuminate\Support\Facades\Request::class,

        'Response' => Illuminate\Support\Facades\Response::class,

        'Route' => Illuminate\Support\Facades\Route::class,

        'Schema' => Illuminate\Support\Facades\Schema::class,

        'Session' => Illuminate\Support\Facades\Session::class,

        'Storage' => Illuminate\Support\Facades\Storage::class,

        'URL' => Illuminate\Support\Facades\URL::class,

        'Validator' => Illuminate\Support\Facades\Validator::class,

        'View' => Illuminate\Support\Facades\View::class,

        'EnvatoUser' => App\Helpers\Envato\User::class,

    ],

];

<?php

// routes/web.php

/*

|--------------------------------------------------------------------------

| Web Routes

|--------------------------------------------------------------------------

|

| Here is where you can register web routes for your application. These

| routes are loaded by the RouteServiceProvider within a group which

| contains the "web" middleware group. Now create something great!

|

*/

Route::get('/envato-user-helper-demo', function () {

    return EnvatoUser::get_username(1);

});