laravel5源码讲解整理

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<?php
/**
* Laravel - A PHP Framework For Web Artisans
*
* @package Laravel
* @author Taylor Otwell <taylorotwell@gmail.com>
*//*
|--------------------------------------------------------------------------
| Register The Auto Loader
|--------------------------------------------------------------------------
|
| Composer provides a convenient, automatically generated class loader for
| our application. We just need to utilize it! We'll simply require it
| into the script here so that we don't have to worry about manual
| loading any of our classes later on. It feels nice to relax.
|
*/require __DIR__.'/../bootstrap/autoload.php';/*
|--------------------------------------------------------------------------
| Turn On The Lights
|--------------------------------------------------------------------------
|
| We need to illuminate PHP development, so let us turn on the lights.
| This bootstraps the framework and gets it ready for use, then it
| will load up this application so that we can run it and send
| the responses back to the browser and delight our users.
|
*/$app = require_once __DIR__.'/../bootstrap/app.php';/*
|--------------------------------------------------------------------------
| Run The Application
|--------------------------------------------------------------------------
|
| Once we have the application, we can handle the incoming request
| through the kernel, and send the associated response back to
| the client's browser allowing them to enjoy the creative
| and wonderful application we have prepared for them.
|
*/$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);$response = $kernel->handle(
$request = Illuminate\Http\Request::capture()
);$response->send();$kernel->terminate($request, $response);


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require __DIR__.'/../bootstrap/autoload.php';


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$app = require_once __DIR__.'/../bootstrap/app.php';


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<?php/*
|--------------------------------------------------------------------------
| Create The Application
|--------------------------------------------------------------------------
|
| The first thing we will do is create a new Laravel application instance
| which serves as the "glue" for all the components of Laravel, and is
| the IoC container for the system binding all of the various parts.
|
*/$app = new Illuminate\Foundation\Application(
realpath(__DIR__.'/../')
);/*
|--------------------------------------------------------------------------
| Bind Important Interfaces
|--------------------------------------------------------------------------
|
| Next, we need to bind some important interfaces into the container so
| we will be able to resolve them when needed. The kernels serve the
| incoming requests to this application from both the web and CLI.
|
*/$app->singleton(
Illuminate\Contracts\Http\Kernel::class,
App\Http\Kernel::class
);$app->singleton(
Illuminate\Contracts\Console\Kernel::class,
App\Console\Kernel::class
);$app->singleton(
Illuminate\Contracts\Debug\ExceptionHandler::class,
App\Exceptions\Handler::class
);/*
|--------------------------------------------------------------------------
| Return The Application
|--------------------------------------------------------------------------
|
| This script returns the application instance. The instance is given to
| the calling script so we can separate the building of the instances
| from the actual running of the application and sending responses.
|
*/return $app;


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/**
* Create a new Illuminate application instance.
*
* @param string|null $basePath
* @return void
*/
public function __construct($basePath = null)
{
$this->registerBaseBindings(); $this->registerBaseServiceProviders(); $this->registerCoreContainerAliases(); if ($basePath) {
$this->setBasePath($basePath);
}
}


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/**
* Register the basic bindings into the container.
*
* @return void
*/
protected function registerBaseBindings()
{
static::setInstance($this); $this->instance('app', $this); $this->instance('Illuminate\Container\Container', $this);
}


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/**
* Register an existing instance as shared in the container.
*
* @param string $abstract
* @param mixed $instance
* @return void
*/
public function instance($abstract, $instance)
{
if (is_array($abstract)) {
// $abstract 是这样的一个数组 ['actual key' => 'alias']
list($abstract, $alias) = $this->extractAlias($abstract); // 实际上的行为是 $this->aliases[$alias] = $abstract;
$this->alias($abstract, $alias);
} unset($this->aliases[$abstract]); // 检查是否有这个键是否已经注册到容器中
// $bound 是一个boolean值
$bound = $this->bound($abstract); $this->instances[$abstract] = $instance; if ($bound) {
$this->rebound($abstract);
}
}


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/**
* Register all of the base service providers.
*
* @return void
*/
protected function registerBaseServiceProviders()
{
$this->register(new EventServiceProvider($this)); $this->register(new RoutingServiceProvider($this));
}/**
* Register a service provider with the application.
*
* @param \Illuminate\Support\ServiceProvider|string $provider
* @param array $options
* @param bool $force
* @return \Illuminate\Support\ServiceProvider
*/
public function register($provider, $options = [], $force = false)
{
if ($registered = $this->getProvider($provider) && !$force) {
return $registered;
} // If the given "provider" is a string, we will resolve it, passing in the
// application instance automatically for the developer. This is simply
// a more convenient way of specifying your service provider classes.
if (is_string($provider)) {
$provider = $this->resolveProviderClass($provider);
} $provider->register(); // Once we have registered the service we will iterate through the options
// and set each of them on the application so they will be available on
// the actual loading of the service objects and for developer usage.
foreach ($options as $key => $value) {
$this[$key] = $value;
} $this->markAsRegistered($provider); // If the application has already booted, we will call this boot method on
// the provider class so it has an opportunity to do its boot logic and
// will be ready for any usage by the developer's application logics.
if ($this->booted) {
$this->bootProvider($provider);
} return $provider;
}


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public function register()
{
$this->app->singleton('events', function ($app) {
return (new Dispatcher($app))->setQueueResolver(function () use ($app) {
return $app->make('Illuminate\Contracts\Queue\Factory');
});
});
}


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public function register()
{
$this->registerRouter(); $this->registerUrlGenerator(); $this->registerRedirector(); $this->registerPsrRequest(); $this->registerPsrResponse(); $this->registerResponseFactory();
}