[李景山php]每天laravel-20161026|TranslationServiceProvider.php

<?php

namespace Illuminate\Translation;

use Illuminate\Support\ServiceProvider;
// namesapce
class TranslationServiceProvider extends ServiceProvider
{// son and father
/**
* Indicates if loading of the provider is deferred.
*
* @var bool
*/
protected $defer = true;// wether provider indicates

/**
* Register the service provider.
*
* @return void
*/
public function register()
{// register the service provider
$this->registerLoader();//set the register Loader

$this->app->singleton('translator', function ($app) {
$loader = $app['translation.loader'];// a singleton function

// When registering the translator component, we'll need to set the default
// locale as well as the fallback locale. So, we'll grab the application
// configuration so we can easily get both of these values from there.
$locale = $app['config']['app.locale'];
// When registering the translator component, we'll need to set the default
// locale as well as the fallback locale. so, we'll grab the application
// configuration so we can easily get both of these values from there.

$trans = new Translator($loader, $locale);//get a instance

$trans->setFallback($app['config']['app.fallback_locale']);// set Fall back

return $trans;// return this trans
});
}

/**
* Register the translation line loader.
*
* @return void
*/
protected function registerLoader()
{
$this->app->singleton('translation.loader', function ($app) {
return new FileLoader($app['files'], $app['path.lang']);
});// use a big wrap function
}// register loader

/**
* Get the services provided by the provider.
*
* @return array
*/
public function provides()
{
return ['translator', 'translation.loader'];
}// a static return
}