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<?php //laravel 5.1.40 (LTS) //注册自动加载->初始化容器->注册基础事件、路由->注册http内核、console内核、异常处理内核->生成$request对象->http内核初始化->将$request副本扔给http内核处理(中间件处理、路由分发处理、结合用户自定义逻辑等)->处理完成生成一个$response->输出$response的相应信息->内核做一些中止操作 //入口文件->载入bootstrap下的autolad.php->载入vendor下的autoload.php //载入composer下的autoload_real.php实现composer的自动加载 //composer自动加载流程简介 //php版本>=5.6会调用autoload_static.php中的getInitializer方法(传入\Composer\Autoload\ClassLoader实例) //该方法返回一个匿名函数，然后在autoload_real.php中通过call_user_func调用它 //将autoload_static.php中的配置字段设置到\Composer\Autoload\ClassLoader的字段中 //然后auto_real.php继续往下走，调用\Composer\Autoload\ClassLoader的register方法 //该方法中通过spl_autoload_register来注册\Composer\Autoload\ClassLoader::loadClass方法实现自动加载 //继续走下去将autoload_static.php中的配置files全部加载进来（这里是直接加载，没有使用动态自动加载） //此时，加载核心文件和注册自动加载已经走完 //入口文件继续执行，加载/bootstrap/app.php->实例化laravel框架Applation(它继承laravel的Container容器) $app = new Illuminate\Foundation\Application( realpath(__DIR__.'/../') ); //构造函数中，做了如下几件事 //注册基础绑定，将Illuminate\Foundation\Application实例赋值给容器的静态字段$instance //同时将放入容器的instances字段数组，有2个key可以定位到它 'app' 和 'Illuminate\Container\Container' $this->registerBaseBindings(); //注册基础服务供应，事件服务供应和路由服务供应（两者都最终继承于Illuminate\Support\ServiceProvider） //注册过程中会实例化事件服务和路由服务实例，并将当前Application实例注入到它们的父类ServiceProvider的app字段 $this->registerBaseServiceProviders(); /******Application->registerBaseServiceProviders(EventServiceProvider实例) BEGIN******/ //注册事件过程简单分析，以EventServiceProvider为例 //Application.php中调用register方法，直接传入EventServiceProvider实例，同时会把Application对象注入到EventServiceProvider中 $this->register(new EventServiceProvider($this)); //register方法中首先会调用获取供应方法，此方法返回NULL，所以$registered=NULL if (($registered = $this->getProvider($provider)) && ! $force) { return $registered; } //getProvider方法会调用Illuminate\Support\Arr::first方法，由于此时Application的serviceProviders为空数组 //所以first方法中会直接调用value函数，返回NULL。value函数在composer的$files中载入/laravel/framework/src/Illuminate/Support/helpers.php return value($default); //继续走下去，会调用Illuminate\Support\ServiceProvider自己的register方法 //此方法会调用之前注入的Application的父类Container的singleton方法(翻译为：独生子女，表示单例) //然后会调用Application的bind方法，并告知为独生(单例)绑定 $this->bind('events', "<一个匿名函数，如下>", true); function ($app) { return (new Dispatcher($app))->setQueueResolver(function () use ($app) { return $app->make('Illuminate\Contracts\Queue\Factory'); }); }; //继续走下去，回到Aplication的register方法，标记事件服务供应已注册 $this->markAsRegistered($provider); //markAsRegistered方法第一行，$this['events'] 可以这样写是因为Application的父类Container实现了ArrayAccess接口 $this['events']->fire($class = get_class($provider), [$provider]); //接着会触发Container的offsetGet方法 return $this->make('events'); //然后继续调用Application的make方法（这里需要注意下，调用的是Application->make，不是Container->make。因为$this['events']，这里的$this指的是Application） //然而，在此处Application的make没有做任何操作，继续调用了Container的make。 //然后获取到$concrete是初始化时绑定的匿名函数Closure Object 关联 Illuminate\Events\EventServiceProvider Object $concrete = $this->getConcrete($abstract); //然后会走到 if($this->isBuildable($concrete, $abstract))的true分支中去，调用Container的build方法 $object = $this->build($concrete, $parameters); //然后在build方法的第一个if中直接调用刚才绑定的Closure Object 关联 Illuminate\Events\EventServiceProvider Object //第2个参数直接忽视，因为匿名函数只接收一个参数，php可以这么干 return $concrete($this, $parameters); //匿名函数中实例化了调度器或者说分发器 Illuminate\Events\Dispatcher 构造函数中注入了Application //并调用了调度器的设置队列解析器方法setQueueResolver，又传入了一个匿名函数，将其赋值给调度器的队列解析器字段$queueResolver function () use ($app) { return $app->make('Illuminate\Contracts\Queue\Factory'); } //然后将调度器的实例返回，赋值给上面的$object <$object = $this->build($concrete, $parameters);> //回到Container的make方法继续往下走，将调度器实例添加到instances中 $this->instances[$abstract] = $object; //继续往下走，调用解决回调方法，此时，与之相关的字段都为空 globalResolvingCallbacks、resolvingCallbacks、globalAfterResolvingCallbacks、afterResolvingCallbacks //所有没有任何回调需要解决，该方法什么也不做 $this->fireResolvingCallbacks($abstract, $object); //继续往下走，在resolved字段标记events为（已解决） $this->resolved[$abstract] = true; //最终在make中返回调度器实例->offsetGet->$this['events']，然后调用它的fire方法（回到Application的markAsRegistered方法） //其实这步什么也没有做，fire可以理解为发射、触发，然而此时调度器中没有任何事件监听需要触发 $this['events']->fire($class = 'Illuminate\Events\EventServiceProvider', ["Illuminate\Events\EventServiceProvider的实例"]); //继续往下走，将Illuminate\Events\EventServiceProvider的实例放入Application的服务供应serviceProviders字段中 //然后在已加载的供应loadedProviders字段中标记为true $this->loadedProviders['Illuminate\Events\EventServiceProvider'] = true; /******Application->registerBaseServiceProviders(EventServiceProvider实例) END******/ /******Application->registerBaseServiceProviders(RoutingServiceProvider实例) BEGIN******/ //有些流程和EventServiceProvider类似的就不在详述了 //路由服务供应者注册后，会调用以下这些子方法 RoutingServiceProvider-register() { $this->registerRouter(); $this->registerUrlGenerator(); $this->registerRedirector(); $this->registerPsrRequest(); $this->registerPsrResponse(); $this->registerResponseFactory(); } //registerRouter方法会触发Container的offsetSet方法绑定router $this->app['router'] = $this->app->share(function ($app) { return new Router($app['events'], $app); }); //先执行Container的share方法，还是返回一个匿名函数 //所以变成了Container->bind("router", "share中返回的匿名函数(它的参数也是个匿名函数)") //然后在bind方法中将其，绑定到Container的bindings字段中 $this->bindings['router'] = compact('share中返回的匿名函数', 'shared为false'); //同理，通过share方法绑定了url和redirect。share方法其实是一个"双重匿名的单例" //例如：$test=share(Closure); $a=$test(); $b=$test(); 此时$a和$b公用一个实例 //接着分别绑定(bind)PsrRequest、PsrResponse和单例绑定(singleton)ResponseFactory /******Application->registerBaseServiceProviders(RoutingServiceProvider实例) END******/ //此时，注册基础服务供应完成了，回到Application->__construct()继续注册核心容器别名 //这步很简单，就是将Application中一些固定配置的别名定义，遍历添加到Container的aliases容器中 $this->registerCoreContainerAliases(); //接着往下走，开始设置一些基础路径 例如项目根目录为：/home/wwwroot/lt lt=laravel test if ("/home/wwwroot/lt") { $this->setBasePath($basePath); } //然后在容器中注册一些路径(应用目录、项目根目录、配置文件目录、数据库目录、语言相关目录、网站入口目录、存储目录，相关文件缓存等) //此时，实例化Illuminate\Foundation\Application完成，回到bootstrap中的app.php，继续往下走，分别注册3个单例(web内核、命令行内核、异常处理内核) $app->singleton( 'Illuminate\Contracts\Http\Kernel', 'App\Http\Kernel' ); $app->singleton( 'Illuminate\Contracts\Console\Kernel', 'App\Console\Kernel' ); $app->singleton( 'Illuminate\Contracts\Debug\ExceptionHandler', 'App\Exceptions\Handler' ); //以http内核为例，走到Container的bind方法后，由于$concrete是一个字符串，所以进入了getClosure方法 if (! $concrete instanceof Closure) { $concrete = $this->getClosure($abstract, $concrete); } //Container->getClosure返回了一个匿名函数，然后绑定到Container的bindings容器中 //然后会回到index.php调用Application->make('Illuminate\Contracts\Http\Kernel'); //然后会进入Container的build方法，执行刚才绑定的匿名函数 $this->bindings['Illuminate\Contracts\Http\Kernel']['concrete']("Container自身实例",[]); //执行匿名函数时，会进行再次build，但是这次的参数$concrete=string("App\Http\Kernel")，进入build后不会直接返回执行匿名函数，而是进行反射 $reflector = new ReflectionClass($concrete); //如果反射失败，直接抛异常 if (! $reflector->isInstantiable()) { throw new BindingResolutionContractException($message); } //然后将其暂放入建造堆栈容器中，没用到或用完后会array_pop掉 $this->buildStack[] = $concrete; //如果反射类没有构造函数，直接把它new出来并返回，如果有父类需要检查父类是否有构造函数 $constructor = $reflector->getConstructor(); if (is_null($constructor)) { //这里没有用到buildStack，直接array_pop掉 array_pop($this->buildStack); return new $concrete; } //如果有构造函数，获取构造函数参数是ReflectionParameter的数组，如：array(0=>ReflectionParameter Object, 1=>ReflectionParameter Object ...) $dependencies = $constructor->getParameters(); //接着走下去，keyParametersByArgument没有干任何事，继续往下调用getDependencies方法 $instances = $this->getDependencies( $dependencies, $parameters ); //进入getDependencies，根据当前参数，会调用resolveClass方法 foreach (array("ReflectionParameter Object app","ReflectionParameter Object router") as $parameter) { $dependencies[] = $this->resolveClass($parameter); } //然后进入resolveClass方法，会再次进入Application的make方法，先说ReflectionParameter Object app return $this->make("Illuminate\Contracts\Foundation\Application"); //此时，回到Application->make()方法，由于注册过别名，所以$abstract变成了其别名：app //然后继续调用Container->make("app",[]); //然后在Container->instances中找到了'app'对应的实例 Illuminate\Foundation\Application Object ... //然后回到Container的getDependencies方法，将实例添加到$dependencies数组 //然后进入下一次循环，再次调用Application->make return $this->make('Illuminate\Routing\Router'); //然后别名后调用Container->make return parent::make('router', []); //然后进入build方法，得到之前绑定的匿名函数$this->bindings['router']['concrete'] //继续往下走，在resolved字段标记router为（已解决） $this->resolved[$abstract] = true; //然后回到Container的getDependencies方法，将匿名函数添加到$dependencies数组 //然后返回$dependencies数组，回到build方法 //然后释放掉buildStack，这里其实并没有用到它 array_pop($this->buildStack); //然后，调用反射类的实例方法，传入刚才返回的$dependencies数组 return $reflector->newInstanceArgs($instances); //然后一路返回至Container->make中的第一次build处 "App\Http\Kernel Object" = $this->build("Illuminate\Contracts\Http\Kernel", []); //然后继续走下去，将刚才反射出来的"App\Http\Kernel Object"放入instances容器 if ($this->isShared("Illuminate\Contracts\Http\Kernel") == true) { $this->instances["Illuminate\Contracts\Http\Kernel"] = "App\Http\Kernel Object"; } //继续往下走，在resolved字段标记Illuminate\Contracts\Http\Kernel为（已解决） $this->resolved[$abstract] = true; //此时，make("Illuminate\Contracts\Http\Kernel")完成了，回到index.php //继续执行，调用父类Illuminate\Foundation\Http\Kernel\handle方法，需要传入request参数 $response = $kernel->handle( $request = Illuminate\Http\Request::capture() ); //然后进入获取$request对象流程，laravel的Request底层使用了symfony组件， //调用Symfony\Component\HttpFoundation\Request的静态方法，将其静态字段标记为true //$httpMethodParameterOverride，大致意思为：http方法参数重写 static::enableHttpMethodParameterOverride(); //然后回到capture方法，capture翻译为：捕获，调用Illuminate\Http\Request的createFromBase方法 return static::createFromBase(SymfonyRequest::createFromGlobals()); //此时，需要先通过SymfonyRequest将$_GET、$_POST、$_COOKIE、$_FILES、$_SERVER等全局变量封装到它的相关字段中并将其自身实例化 //$_GET==$query $_POST==$request $_COOKIE==$cookies $_FILES==$files $_SERVER==$server //调用createFromGlobals再调用createRequestFromFactory($_GET, $_POST, array(), $_COOKIE, $_FILES, $server) //然后进入createRequestFromFactory方法会调用new static，跟new get_class($this)效果类似 //实例化了Symfony\Component\HttpFoundation\Request return new static($query, $request, $attributes, $cookies, $files, $server, $content); //然后进入Symfony\Component\HttpFoundation\Request的__construct调用initialize方法 $this->initialize($query, $request, $attributes, $cookies, $files, $server, $content); //然后将各个参数封装成ParameterBag对象或者继承ParameterBag的对象Symfony\Component\HttpFoundation\Request的各个相关字段 //然后会进入Illuminate\Http\Request->createFromBase并将刚才实例化的SymfonyRequest传入 //这个判断不会进入，因为调用方是子类，而$request是通过父类的new static延迟静态绑定的 if ($request instanceof static) { return $request; } //然后通过(new static)->duplicate，实例化自己Illuminate\Http\Request，并调用duplicate方法，duplicate中调用了父类的duplicate //duplicate是复制的意思，把Illuminate\Http\Request复制一份，赋值相应参数，并返回 //然后走下去，将$request->request 重置为 GET|POST|JSON(如果是json的话，会转成array)的参数，并返回 //此时回到了index.php，进入$kernel的handle方法，传入Illuminate\Http\Request的副本 //将副本的$httpMethodParameterOverride设置为ture，并调用Kernel的sendRequestThroughRouter方法 //然后设置Container的instances字段容器"request"=>"Illuminate\Http\Request副本" //然后进行初始化，$this->bootstrap() $bootstrappers = [ 'Illuminate\Foundation\Bootstrap\DetectEnvironment', /*检查环境 使用Dotenv做一些初始化环境配置 将/.env加载到$_SERVER $_ENV中， 然后绑定$app->bindings['env'] = 一个匿名函数返回APP_ENV的值 */ 'Illuminate\Foundation\Bootstrap\LoadConfiguration', /*加载配置 将/config下的配置文件全部加载到Illuminate\Config\Repository的items中， 并将Illuminate\Config\Repository Object放入Application->instances['config']， 设置时区、编码等 */ 'Illuminate\Foundation\Bootstrap\ConfigureLogging', /*日志配置 实例化Illuminate\Log\Writer(注入Monolog和$app->bindings["events"])， 并将其注册到$app->instances['log']，然后初始化日志方式(文件)、路径、格式(format)等 */ 'Illuminate\Foundation\Bootstrap\HandleExceptions', //设置错误日志级别、设置自定义错误处理、设置自定义异常处理、设置自定义shutdown处理等 'Illuminate\Foundation\Bootstrap\RegisterFacades', /*设置别名自动加载 在spl_autoload_register函数队列首部插入别名加载class_alias， 如果new的类名是config/app.php中的aliases数组的key，将key作为value的别名 */ 'Illuminate\Foundation\Bootstrap\RegisterProviders', //通过Illuminate\Foundation\ProviderRepository注册services.json下的相关服务供应商 'Illuminate\Foundation\Bootstrap\BootProviders', //执行收尾工作，如果$app->serviceProviders有boot方法，调用相应的boot方法 ]; $this->app->bootstrapWith($bootstrappers); //进入bootstrapWith方法，循环将$bootstrappers做相应初始化 foreach ($bootstrappers as $bootstrapper) { //在初始化之前挂载事件监听，暂时什么都不干 $this['events']->fire('bootstrapping: '.$bootstrapper, [$this]); //这一步，实例化相应的对象，并在容器中将它标识为已解决 $this->resolved[$abstract] = true; //然后调用对象的初始化方法 $obj->bootstrap(Application $app); $this->make($bootstrapper)->bootstrap($this); //在初始化之前挂载事件监听，暂时什么都不干 $this['events']->fire('bootstrapped: '.$bootstrapper, [$this]); } //初始化完成后，回到Illuminate\Foundation\Http\Kernel->handle()->sendRequestThroughRouter() //然后实例化Illuminate\Pipeline\Pipeline并做相应操作 pipeline流程 输入->管道加工->输出 //构造函数传入$app，send传入传输参数($request)，through传入需要经过的加工处理的管道|流水线($middleware中间件)，then执行相应的目标方法 return (new Pipeline($this->app)) ->send($request) ->through($this->app->shouldSkipMiddleware() ? [] : $this->middleware) ->then($this->dispatchToRouter()); //send和through只是一些设置工作，then方法比较复杂，详细说一下then方法 //$firstSlice可以理解为Illuminate\Foundation\Http\Kernel->dispatchToRouter()返回的匿名函数 $firstSlice = $this->getInitialSlice($destination); //将如下数组($this->pipes)倒序排序，因为下面call_user_func的时候是从匿名函数的最里层开始调用的 array ( 'Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode', 'App\Http\Middleware\EncryptCookies', 'Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse', 'Illuminate\Session\Middleware\StartSession', 'Illuminate\View\Middleware\ShareErrorsFromSession', 'App\Http\Middleware\VerifyCsrfToken', ) $pipes = array_reverse($this->pipes); // $pipes上面的数组倒序、$this->getSlice()返回一个匿名函数、$firstSlice也是一个匿名函数，$this->passable就是$request // array_reduce($pipes, $this->getSlice(), $firstSlice)返回一个递归后的匿名函数。 return call_user_func( array_reduce($pipes, $this->getSlice(), $firstSlice), $this->passable ); //执行call_user_func后会依次执行对上面的array中的类名进行make->build->反射->调用其handle方法，handle的参数是$request和$firstSlice或上一次执行的返回值 //首先调用$firstSlice，其实就是Illuminate\Routing\Router的dispatch方法 //然后进入dispatch方法，刚开始$response为NULL，将$request分发到路由后返回Response $response = $this->dispatchToRoute($request); //然后findRoute、然后Illuminate\Routing\RouteCollection->match $route = $this->findRoute($request); $this->routes->match($request); //进入match方法 $routes = $this->get($request->getMethod()); //然后会走到Illuminate\Support\Arr::get方法 return Arr::get($this->routes, $method, []); //Arr::get()中第一个参数$this->routes是之前Illuminate\Foundation\Bootstrap\BootProviders->bootstrap()的时候赋值的 //App\Providers\RouteServiceProvider->boot() //$this->app[UrlGenerator::class]->setRootControllerNamespace($this->namespace); //UrlGenerator::class => Illuminate\Contracts\Routing\UrlGenerator 别名为url //然后会执行Illuminate\Routing\RoutingServiceProvider->registerUrlGenerator绑定的匿名函数 //然后回到App\Providers\RouteServiceProvider->boot()进入$this->loadRoutes(); //然后调用$this->app->call([$this, 'map']); return call_user_func_array($callback, $dependencies); //然后会调用App\Providers\RouteServiceProvider->map() $router->group(['namespace' => $this->namespace], function ($router) { require app_path('Http/routes.php'); }); //然后在Illuminate\Routing\Router->group()中给groupStack赋值 $this->groupStack[] = array("namespace" => "App\Http\Controllers"); //并载入/home/wwwroot/lt/app/Http/routes.php Route::get('/', function () { return view('welcome'); }); //Illuminate\Routing\Router->get()->addRoute() return $this->routes->add($this->createRoute(['GET', 'HEAD'], '/', function(){return view('welcome');})); //Illuminate\Routing\Router->createRoute() $route = $this->newRoute($methods, $this->prefix($uri), $action); //Illuminate\Routing\Router->newRoute() return (new Route($methods, $uri, $action))->setContainer($this->container); //Illuminate\Routing\Router->createRoute()->mergeWithLastGroup()->mergeGroup() $this->mergeGroupAttributesIntoRoute($route); $route->setAction($action); //Illuminate\Routing\Router->createRoute() $this->addWhereClausesToRoute($route); //Illuminate\Routing\RouteCollection->add $this->addToCollections($route); //Illuminate\Routing\RouteCollection->addToCollections //该方法中为$this->routes赋值（上面有提到过），并为allRoutes赋值（foreach的最后一个key.$domainAndUri） $domainAndUri = $route->domain().$route->getUri(); foreach ($route->methods() as $method) { $this->routes[$method][$domainAndUri] = $route; } $this->allRoutes[$method.$domainAndUri] = $route; //Illuminate\Routing\RouteCollection->add->addLookups 如果设置别名或者controller作相应处理 //回到Illuminate\Routing\RouteCollection->match，$routes=array("/"=>Illuminate\Routing\Route Object) $routes = $this->get($request->getMethod()); $route = $this->check($routes, $request); //Illuminate\Routing\RouteCollection->match->check return Arr::first($routes, function ($key, $value) use ($request, $includingMethod) { return $value->matches($request, $includingMethod); }); //Illuminate\Routing\Route->matches $this->compileRoute(); //Illuminate\Routing\Route->compileRoute $this->compiled = with( new SymfonyRoute($uri, $optionals, $this->wheres, [], $this->domain() ?: '') )->compile(); //Symfony\Component\Routing\Route->compile 返回一个Symfony\Component\Routing\CompiledRoute Object return $this->compiled = Symfony\Component\Routing\RouteCompiler::compile($this); //Illuminate\Routing\RouteCollection->match 做一些相应的绑定操作，然后返回Illuminate\Routing\Route Object return $route->bind($request); //然后回到Illuminate\Routing\Router->findRoute方法，将match返回的Illuminate\Routing\Route Object赋值给$this->current并注册到$app->instances $this->container->instance('Illuminate\Routing\Route', $route); //然后回到Illuminate\Routing\Router->dispatchToRoute()继续往下走，$request->setRouteResolver()后，生成$response对象 $response = $this->runRouteWithinStack($route, $request); //进入Illuminate\Routing\Router->runRouteWithinStack，再来一次pipeline流程，但是这次中间件$middleware为空，所以只是执行then中的匿名函数并返回 return (new Pipeline($this->container)) ->send($request) ->through($middleware) ->then(function ($request) use ($route) { return $this->prepareResponse( $request, $route->run($request) ); }); //执行return $this->prepareResponse($request, $route->run($request)); 先执行 $route->run($request) //会调用 lt/app/http/routes.php中的 return view('welcome'); //然后调用helpers.php中的view函数，然后会调用$app->make("Illuminate\Contracts\View\Factory") //Illuminate\Contracts\View\Factory的别名是view，所以会执行之前初始化时候绑定的$app->bindings['view']所对应的匿名函数 //Closure Object 关联 Illuminate\View\ViewServiceProvider Object //然后会执行 $app['view.engine.resolver'] 返回Illuminate\View\EngineResolver Object 并给它的resolvers字段设置2个匿名函数并在$app中注册一个blade.compiler绑定 //$engine->resolvers['php']=Closure Object 关联 Illuminate\View\ViewServiceProvider Object //$engine->resolvers['blade']=Closure Object 关联 Illuminate\View\ViewServiceProvider Object //然后执行 $app['view.finder'] 返回Illuminate\View\FileViewFinder Object //然后实例化Illuminate\View\Factory $env = new Factory('Illuminate\View\EngineResolver Object', 'Illuminate\View\FileViewFinder Object', 'Illuminate\Events\Dispatcher Object'); //然后回到helpers.php的view函数($factory就是上面返回的$env) return $factory->make($view, $data, $mergeData); //找到welcome文件的路径 /home/wwwroot/lt/resources/views/welcome.blade.php $path = $this->finder->find($view); //然后继续往下走会返回一个view对象 $this->callCreator($view = new View($this, $this->getEngineFromPath($path), $view, $path, $data)); return $view; //$this->getEngineFromPath($path) 会执行刚才绑定的$engine->resolvers['blade']的匿名函数 //匿名函数返回一个Illuminate\View\Engines\CompilerEngine Object //该对象注入了 Illuminate\View\Compilers\BladeCompiler Object //回到Illuminate\Routing\Router->prepareResponse 实例化Illuminate\Http\Response extends Symfony\Component\HttpFoundation\Response $response = new Response('Illuminate\View\View Object'); //然后预处理下$request并返回Response对象 return $response->prepare($request); //然后回到Illuminate\Routing\Router->dispatchToRoute 后续操作暂时都没执行 return $response; //然后回到最上面的pipeline流程 //调用Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode的handle //检查/home/wwwroot/lt/storage/framework/down是否存在，有就返回503错误 //调用App\Http\Middleware\EncryptCookies对cookie进行加解密 //调用Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse //调用Illuminate\Session\Middleware\StartSession进行session驱动设置，session_start等 //调用Illuminate\View\Middleware\ShareErrorsFromSession //调用App\Http\Middleware\VerifyCsrfToken验证CSFR令牌 //然后返回经过流水线处理的$response对象，回到index.php，输出头信息和内容，此时会输出laravel的welcome页面 $response->send(); //最后做一些后续操作，之前用到的中间件如果有terminate方法，执行它 //这里只有Illuminate\Session\Middleware\StartSession有terminate方法，执行它做一些SESSION的后续操作 //laravel中操作session是在内存中(对象)操作的，最后结束时将其"持久化"到文件中 $kernel->terminate($request, $response); |
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<?php class Container{ protected $instances = []; //存放初始化的实例 protected $bindings = []; //存放初始化的绑定 protected $aliases = []; //存放类名的别名 类名=>别名 protected $reboundCallbacks = []; //存放反弹回调的匿名函数 protected $afterResolvingCallbacks = []; //存放延迟解决的匿名函数 protected $deferredServices = []; //存放延迟服务 Illuminate\Foundation\ProviderRepository->load->services.json->deferred数组 protected $basePath = "项目根目录"; //例如：/home/wwwroot/lt（最后边没有/，Application->setBasePath()中设置） public function initInstances() { $this->instances = array( // 下面2个是在，Application的registerBaseBindings()中注册绑定的 // 在它父类中instances容器中，绑定自己，取了2个别名 'app' => 'Illuminate\Foundation\Application Object ...', 'Illuminate\Container\Container' => 'Illuminate\Foundation\Application Object ...', // Application的registerBaseServiceProviders方法->register()->markAsRegistered()->$this['events']->触发Container->offsetGet() // ->make()->build()->触发EventServiceProvider的register中的匿名函数->return回调度器方法->Container的make方法中添加进来 'events' => 'Illuminate\Events\Dispatcher Object', 'path' => '/home/wwwroot/lt/app', //应用目录 'path.base' => '/home/wwwroot/lt', //项目根目录 'path.config' => '/home/wwwroot/lt/config', //配置文件目录 'path.database' => '/home/wwwroot/lt/database', //数据库目录 'path.lang' => '/home/wwwroot/lt/resources/lang', //语言相关目录 'path.public' => '/home/wwwroot/lt/public', //网站入口目录 'path.storage' => '/home/wwwroot/lt/storage', //存储目录，相关文件缓存等 "Illuminate\Contracts\Http\Kernel" => "App\Http\Kernel Object", //入口文件中$app->make处注册的HTTP内核实例 "request" => "Illuminate\Http\Request Object", //Illuminate\Foundation\Http\Kernel->handle()->sendRequestThroughRouter()注册 "config" => "Illuminate\Config\Repository Object", //Illuminate\Foundation\Bootstrap\LoadConfiguration->bootstrap()注册 "log" => "Illuminate\Log\Writer Object", //Illuminate\Foundation\Bootstrap\ConfigureLogging->bootstrap()注册 "Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode" => "Object", //通过pipeline注册 "routes" => "Illuminate\Routing\RouteCollection Object", //执行Illuminate\Routing\RoutingServiceProvider->registerUrlGenerator的匿名函数注册 "Illuminate\Routing\Route" => "Illuminate\Routing\Route Object", //Illuminate\Routing\Router->findRoute()中注册 ); } public function initBindings() { $this->bindings = array( //下面这个是在Container->bind()中$this->bindings[$abstract] = compact('concrete', 'shared'); //注册了一个事件绑定，concrete(混凝土)是一个匿名函数，可能表示匿名函数比较"百搭"吧，你怎么实现，它怎么执行。。 //shared为1表示已被分享的，表示单例（基于$this->bindings容器，或者说基于$this->instances） //当$this->bindings[$key]["shared"]为1时，可以在$this->bindings[$key]中找到相应的实例 'events' => array( 'concrete' => 'Closure Object 关联 Illuminate\Events\EventServiceProvider Object', 'shared' => 1 ), //下面3个是在Illuminate\Routing\RoutingServiceProvider->register()->触发offsetSet()并使用share方法绑定进来的 //他们的concrete回调函数是不同的，只是都与Illuminate\Routing\RoutingServiceProvider Object相关 //share方法，表示分享，也表示单例（基于匿名函数的返回对象） //$a=$this->bindings[$key]['concrete']; $b=$this->bindings[$key]['concrete']; $a()和$b()是同一个"东西"; 'router' => array( 'concrete' => 'Closure Object 关联 Illuminate\Routing\RoutingServiceProvider Object', 'shared' => 0 ), 'url' => array( 'concrete' => 'Closure Object 关联 Illuminate\Routing\RoutingServiceProvider Object', 'shared' => 0 ), 'redirect' => array( 'concrete' => 'Closure Object 关联 Illuminate\Routing\RoutingServiceProvider Object', 'shared' => 0 ), //下面2个同上是触发offsetSet()绑定的，但是它们直接使用了Container的bind方法 'Psr\Http\Message\ServerRequestInterface' => array( 'concrete' => 'Closure Object 关联 Illuminate\Routing\RoutingServiceProvider Object', 'shared' => 0 ), 'Psr\Http\Message\ResponseInterface' => array( 'concrete' => 'Closure Object 关联 Illuminate\Routing\RoutingServiceProvider Object', 'shared' => 0 ), //下面这个同上是触发offsetSet()绑定的，但是它使用了Container的singleton方法 'Illuminate\Contracts\Routing\ResponseFactory' => array( 'concrete' => 'Closure Object 关联 Illuminate\Routing\RoutingServiceProvider Object', 'shared' => 1 ), //下面3个是bootstrap中的app.php中调用Application->singleton()绑定的 'Illuminate\Contracts\Http\Kernel' => array( 'concrete' => 'Closure Object use了Illuminate\Contracts\Http\Kernel和App\Http\Kernel(还未make)', 'shared' => 1 ), 'Illuminate\Contracts\Console\Kernel' => array( 'concrete' => 'Closure Object use了Illuminate\Contracts\Console\Kernel和App\Console\Kernel(还未make)', 'shared' => 1 ), 'Illuminate\Contracts\Debug\ExceptionHandler' => array( 'concrete' => 'Closure Object use了Illuminate\Contracts\Debug\ExceptionHandler和App\Exceptions\Handler(还未make)', 'shared' => 1 ), //下面这个是build Illuminate\Contracts\Http\Kernel的时候注入的Illuminate\Routing\Router的构造函数中绑定的 '_missing' => array( 'concrete' => 'Closure Object 关联Illuminate\Routing\Router Object', 'shared' => 0 ), //下面这个是Illuminate\Foundation\Bootstrap\DetectEnvironment->bootstrap()，然后调用$app->detectEnvironment绑定的 "env" => array( 'concrete' => 'Closure Object 调用后只是返回一个APP_ENV的环境变量', 'shared' => 0 ), //下面这几个是$app->bootstrapWith()，然后在foreach中轮询到Illuminate\Foundation\Bootstrap\RegisterProviders->bootstrap()， //然后遍历实例化/bootstrap/cache/services.json中的eager数组中的相关类后调用register注册的 "auth" => array( 'concrete' => 'Closure Object 关联 Illuminate\Auth\AuthServiceProvider Object', 'shared' => 1 ), "auth.driver" => array( 'concrete' => 'Closure Object 关联 Illuminate\Auth\AuthServiceProvider Object', 'shared' => 1 ), "Illuminate\Contracts\Auth\Authenticatable" => array( 'concrete' => 'Closure Object 关联 Illuminate\Auth\AuthServiceProvider Object', 'shared' => 0 ), "Illuminate\Contracts\Auth\Access\Gate" => array( 'concrete' => 'Closure Object 关联 Illuminate\Auth\AuthServiceProvider Object', 'shared' => 1 ), "illuminate.route.dispatcher" => array( 'concrete' => 'Closure Object 关联 Illuminate\Routing\ControllerServiceProvider Object', 'shared' => 1 ), "cookie" => array( 'concrete' => 'Closure Object 关联 Illuminate\Cookie\CookieServiceProvider Object', 'shared' => 1 ), "Faker\Generator" => array( 'concrete' => 'Closure Object 关联 Illuminate\Database\DatabaseServiceProvider Object', 'shared' => 1 ), "Illuminate\Database\Eloquent\Factory" => array( 'concrete' => 'Closure Object 关联 Illuminate\Database\DatabaseServiceProvider Object', 'shared' => 1 ), "Illuminate\Contracts\Queue\EntityResolver" => array( 'concrete' => 'Closure Object 关联 Illuminate\Database\DatabaseServiceProvider Object', 'shared' => 1 ), "db.factory" => array( 'concrete' => 'Closure Object 关联 Illuminate\Database\DatabaseServiceProvider Object', 'shared' => 1 ), "db" => array( 'concrete' => 'Closure Object 关联 Illuminate\Database\DatabaseServiceProvider Object', 'shared' => 1 ), "db.connection" => array( 'concrete' => 'Closure Object 关联 Illuminate\Database\DatabaseServiceProvider Object', 'shared' => 0 ), "encrypter" => array( 'concrete' => 'Closure Object 关联 Illuminate\Encryption\EncryptionServiceProvider Object', 'shared' => 1 ), "files" => array( 'concrete' => 'Closure Object 关联 Illuminate\Filesystem\FilesystemServiceProvider Object', 'shared' => 1 ), "filesystem" => array( 'concrete' => 'Closure Object 关联 Illuminate\Filesystem\FilesystemServiceProvider Object', 'shared' => 1 ), "filesystem.disk" => array( 'concrete' => 'Closure Object 关联 Illuminate\Filesystem\FilesystemServiceProvider Object', 'shared' => 1 ), "filesystem.cloud" => array( 'concrete' => 'Closure Object 关联 Illuminate\Filesystem\FilesystemServiceProvider Object', 'shared' => 1 ), //"Illuminate\Foundation\Providers\FoundationServiceProvider","Illuminate\Pagination\PaginationServiceProvider" //上面2个没有绑定进bindings，而是在自己的相关类中注册实例或者绑定回调 "session" => array( 'concrete' => 'Closure Object 关联 Illuminate\Session\SessionServiceProvider Object', 'shared' => 1 ), "session.store" => array( 'concrete' => 'Closure Object 关联 Illuminate\Session\SessionServiceProvider Object', 'shared' => 1 ), "Illuminate\Session\Middleware\StartSession" => array( 'concrete' => 'Closure Object 关联 Illuminate\Foundation\Application Object use了Illuminate\Session\Middleware\StartSession', 'shared' => 1 ), "validation.presence" => array( 'concrete' => 'Closure Object 关联 Illuminate\Validation\ValidationServiceProvider Object', 'shared' => 1 ), "validator" => array( 'concrete' => 'Closure Object 关联 Illuminate\Validation\ValidationServiceProvider Object', 'shared' => 1 ), "view.engine.resolver" => array( 'concrete' => 'Closure Object 关联 Illuminate\View\ViewServiceProvider Object', 'shared' => 1 ), "view.finder" => array( 'concrete' => 'Closure Object 关联 Illuminate\View\ViewServiceProvider Object', 'shared' => 0 ), "view" => array( 'concrete' => 'Closure Object 关联 Illuminate\View\ViewServiceProvider Object', 'shared' => 1 ), "blade.compiler" => array( 'concrete' => 'Closure Object 关联 Illuminate\View\ViewServiceProvider Object', 'shared' => 1 ), ); } public function initAliases() { //这步很简单，Application构造函数中调用registerCoreContainerAliases，会把一些固定配置的别名定义，遍历添加到Container的aliases容器中 $this->aliases = array ( 'Illuminate\Foundation\Application' => 'app', 'Illuminate\Contracts\Container\Container' => 'app', 'Illuminate\Contracts\Foundation\Application' => 'app', 'Illuminate\Auth\AuthManager' => 'auth', 'Illuminate\Auth\Guard' => 'auth.driver', 'Illuminate\Contracts\Auth\Guard' => 'auth.driver', 'Illuminate\Auth\Passwords\TokenRepositoryInterface' => 'auth.password.tokens', 'Illuminate\View\Compilers\BladeCompiler' => 'blade.compiler', 'Illuminate\Cache\CacheManager' => 'cache', 'Illuminate\Contracts\Cache\Factory' => 'cache', 'Illuminate\Cache\Repository' => 'cache.store', 'Illuminate\Contracts\Cache\Repository' => 'cache.store', 'Illuminate\Config\Repository' => 'config', 'Illuminate\Contracts\Config\Repository' => 'config', 'Illuminate\Cookie\CookieJar' => 'cookie', 'Illuminate\Contracts\Cookie\Factory' => 'cookie', 'Illuminate\Contracts\Cookie\QueueingFactory' => 'cookie', 'Illuminate\Encryption\Encrypter' => 'encrypter', 'Illuminate\Contracts\Encryption\Encrypter' => 'encrypter', 'Illuminate\Database\DatabaseManager' => 'db', 'Illuminate\Database\Connection' => 'db.connection', 'Illuminate\Database\ConnectionInterface' => 'db.connection', 'Illuminate\Events\Dispatcher' => 'events', 'Illuminate\Contracts\Events\Dispatcher' => 'events', 'Illuminate\Filesystem\Filesystem' => 'files', 'Illuminate\Filesystem\FilesystemManager' => 'filesystem', 'Illuminate\Contracts\Filesystem\Factory' => 'filesystem', 'Illuminate\Contracts\Filesystem\Filesystem' => 'filesystem.disk', 'Illuminate\Contracts\Filesystem\Cloud' => 'filesystem.cloud', 'Illuminate\Contracts\Hashing\Hasher' => 'hash', 'Illuminate\Translation\Translator' => 'translator', 'Symfony\Component\Translation\TranslatorInterface' => 'translator', 'Illuminate\Log\Writer' => 'log', 'Illuminate\Contracts\Logging\Log' => 'log', 'Psr\Log\LoggerInterface' => 'log', 'Illuminate\Mail\Mailer' => 'mailer', 'Illuminate\Contracts\Mail\Mailer' => 'mailer', 'Illuminate\Contracts\Mail\MailQueue' => 'mailer', 'Illuminate\Auth\Passwords\PasswordBroker' => 'auth.password', 'Illuminate\Contracts\Auth\PasswordBroker' => 'auth.password', 'Illuminate\Queue\QueueManager' => 'queue', 'Illuminate\Contracts\Queue\Factory' => 'queue', 'Illuminate\Contracts\Queue\Monitor' => 'queue', 'Illuminate\Contracts\Queue\Queue' => 'queue.connection', 'Illuminate\Routing\Redirector' => 'redirect', 'Illuminate\Redis\Database' => 'redis', 'Illuminate\Contracts\Redis\Database' => 'redis', 'Illuminate\Http\Request' => 'request', 'Illuminate\Routing\Router' => 'router', 'Illuminate\Contracts\Routing\Registrar' => 'router', 'Illuminate\Session\SessionManager' => 'session', 'Illuminate\Session\Store' => 'session.store', 'Symfony\Component\HttpFoundation\Session\SessionInterface' => 'session.store', 'Illuminate\Routing\UrlGenerator' => 'url', 'Illuminate\Contracts\Routing\UrlGenerator' => 'url', 'Illuminate\Validation\Factory' => 'validator', 'Illuminate\Contracts\Validation\Factory' => 'validator', 'Illuminate\View\Factory' => 'view', 'Illuminate\Contracts\View\Factory' => 'view', ); } public function initReboundCallbacks() { $this->reboundCallbacks = array( 'request' => array( //Illuminate\Auth\AuthServiceProvider->register()->registerRequestRebindHandler()注册 'Closure Object 关联 Illuminate\Auth\AuthServiceProvider Object', //执行Illuminate\Routing\RoutingServiceProvider->registerUrlGenerator()的匿名函数注册 'Closure Object 关联 Illuminate\Routing\RoutingServiceProvider Object', ), 'routes' => array( //执行Illuminate\Routing\RoutingServiceProvider->registerUrlGenerator()的匿名函数注册 'Illuminate\Routing\RoutingServiceProvider Object', ), ); } public function initAfterResolvingCallbacks() { //Illuminate\Foundation\Bootstrap\RegisterProviders->service.json->eager->Illuminate\Validation\ValidationServiceProvider绑定 $this->afterResolvingCallbacks = array( 'Illuminate\Contracts\Validation\ValidatesWhenResolved' => array( 'Closure Object 关联 Illuminate\Validation\ValidationServiceProvider Object', ), ); } } class Application{ protected $serviceProviders = []; //存放服务供应实例 protected $loadedProviders = []; //标记哪些服务供应实例已加载或者说已放入$serviceProviders public function initServiceProviders() { $this->serviceProviders = array( 'Illuminate\Events\EventServiceProvider Object', 'Illuminate\Routing\RoutingServiceProvider Object', 'Illuminate\Auth\AuthServiceProvider Object', 'Illuminate\Routing\ControllerServiceProvider Object', 'Illuminate\Cookie\CookieServiceProvider Object', 'Illuminate\Database\DatabaseServiceProvider Object', 'Illuminate\Encryption\EncryptionServiceProvider Object', 'Illuminate\Filesystem\FilesystemServiceProvider Object', //FoundationServiceProvider extends AggregateServiceProvider register添加进来，并没有绑定bindings，而是放在了FoundationServiceProvider->instances中 'Illuminate\Foundation\Providers\FormRequestServiceProvider Object', 'Illuminate\Session\SessionServiceProvider Object', 'Illuminate\Validation\ValidationServiceProvider Object', 'Illuminate\View\ViewServiceProvider Object', //以下4个只是添加到serviceProviders中，具体注册什么回调是留给用户自定义的 'App\Providers\AppServiceProvider Object', 'App\Providers\AuthServiceProvider Object', 'App\Providers\EventServiceProvider Object', 'App\Providers\RouteServiceProvider Object', ); } public function initLoadedProviders() { $this->loadedProviders = array( 'Illuminate\Events\EventServiceProvider' => true, 'Illuminate\Routing\RoutingServiceProvider' => true, 'Illuminate\Auth\AuthServiceProvider' => true, 'Illuminate\Routing\ControllerServiceProvider' => true, 'Illuminate\Cookie\CookieServiceProvider' => true, 'Illuminate\Database\DatabaseServiceProvider' => true, 'Illuminate\Encryption\EncryptionServiceProvider' => true, 'Illuminate\Filesystem\FilesystemServiceProvider' => true, 'Illuminate\Foundation\Providers\FormRequestServiceProvider' => true, 'Illuminate\Session\SessionServiceProvider' => true, 'Illuminate\Validation\ValidationServiceProvider' => true, 'Illuminate\View\ViewServiceProvider' => true, 'App\Providers\AppServiceProvider' => true, 'App\Providers\AppServiceProvider' => true, 'App\Providers\AuthServiceProvider' => true, 'App\Providers\EventServiceProvider' => true, 'App\Providers\RouteServiceProvider' => true, ); } } class Request { //Symfony\Component\HttpFoundation\Request /** * @param array $query The GET parameters * @param array $request The POST parameters * @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...) * @param array $cookies The COOKIE parameters * @param array $files The FILES parameters * @param array $server The SERVER parameters * @param string|resource $content The raw body data */ public function initialize(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null) { $this->request = new ParameterBag($request); $this->query = new ParameterBag($query); $this->attributes = new ParameterBag($attributes); $this->cookies = new ParameterBag($cookies); $this->files = new FileBag($files); $this->server = new ServerBag($server); $this->headers = new HeaderBag($this->server->getHeaders()); $this->content = $content; $this->languages = null; $this->charsets = null; $this->encodings = null; $this->acceptableContentTypes = null; $this->pathInfo = null; $this->requestUri = null; $this->baseUrl = null; $this->basePath = null; $this->method = null; $this->format = null; } } |
