<?php
namespace Illuminate\Pipeline;
use Illuminate\Support\ServiceProvider;
// namespace like Service Provider
class PipelineServiceProvider extends ServiceProvider
{// all this Service Provider
//this is a pipeline Service Provider
/**
* Indicates if loading of the provider is deferred.
*
* @var bool
*/
protected $defer = true;// just like a parents
// Indicates if loading of the provider is deferred.
/**
* Register the service provider.
*
* @return void
*/
public function register()
{
$this->app->singleton(
‘Illuminate\Contracts\Pipeline\Hub‘, ‘Illuminate\Pipeline\Hub‘
);// singleton method
}//Register the service provider.
/**
* Get the services provided by the provider.
*
* @return array
*/
public function provides()
{
return [
‘Illuminate\Contracts\Pipeline\Hub‘,
];// return this
}//Get the services provided by the provider.
}本文出自 “专注php” 博客，请务必保留此出处http://jingshanls.blog.51cto.com/3357095/1829008
[李景山php]每天laravel-20160924|PiplineServiceProvider.php
原文：http://jingshanls.blog.51cto.com/3357095/1829008