yii 核心类classes.php详解（持续更新中...）

classes.php在yii运行的时候将被自动加载，位于yii2文件夹底下。

<?php
/**
 * Yii core class map.
 *
 * This file is automatically generated by the "build classmap" command under the "build" folder.
 * Do not modify it directly.
 *
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

return [
  'yii\base\Action' => YII2_PATH . '/base/Action.php',

//yii所有基础控制器(controler)的执行类的基类。在一系列单独文件中，Action提供一系列的方法将复杂的控制器分解成若干细小的action。衍生类必须实现一个名为run的方法，当action被请求的时候，这个方法必须由控制器唤醒。run方法可以有一系列由用户根据名称输入的值进行自动填充。举例来说：如果run（）方法如下声明：public function run($id, $type = 'book'){...},在action中参数这样提供，['id' => 1]。然后run（）方法将被像run(1)这样自动唤醒。

它的公共属性有：

$behaviors属性，类型为yii\base\Behavior[]，连接到组件上的行为列表，继承自yii\base\Component。

$controller属性，yii\base\Controller，拥有这个action的控制器，来自yiii\base\Action。

$idstring属性，action的id值，来自yii\base\Action。

$uniqueId属性，整个应用中改action的唯一id，来自yii\base\Action。

公共方法：

__call(),调用非类方法的命名方法，继承自yii\base\Components类。这个方法将检查如果任何相关联的行为有命名方法且可用将执行它。不要直接将其当作一个PHP魔术方法进行调用，魔术方法会在当一个未知方法被调用的时候隐式调起。

__clone(),此方法在以克隆一个已存在的对象的方式创建一个对象之后调起，继承自yii\base\Components类。它移除所有行为，因为他们关联到了旧的对象。

__construct(),构造器方法，来自yii\base\Action类。用来依据传入的配置文件进行初始化的。

__get(),返回组件属性，继承自yii\base\Components类。

__isset(),检测属性值是否为空，继承自yii\base\Components类。

__set(),设置组件属性值，继承自yii\base\Components类。

__unset(),设置组件属性值为空，继承自yii\base\Components类。

AttachBehavior(),关联一个属性到组件，继承自yii\base\Components类。

AttachBehaviors(),关联一组属性到组件，继承自yii\base\Components类。

canGetProperty(),如果属性可读返回一个指定值，继承自yii\base\Components类。

canSetProperty(),如果属性可设置返回一个指定值，继承自yii\base\Components类。

className(),返回该类完整合法的类名，继承自yii\base\Components类。

detachBehavior(),解除一个组件的关联行为，继承自yii\base\Components类。

detachBehaviors(),解除全部组件的关联行为，继承自yii\base\Components类。

ensureBehaviors(),确认在behavior()里申明的行为被关联到这个组件，继承自yii\base\Components类。

getBehavior(),返回命名的行为对象，继承自继承自yii\base\Components类。

getBehaviors(),返回所有关联到组件的行为对象，继承自继承自yii\base\Components类。

getUniqueId(),返回贯穿整个应用的action的独立ID，继承自yii\base\Components类。

hasEventHandles(),返回是否关联到命名事件的任何句柄的一个指定值，继承自yii\base\Components类。

hasMethod(),返回一个方法是否定义的指定值，继承自yii\base\Components类。

hasProperty(),返回一个组件的谋属性是否定义的指定值，继承自yii\base\Components类。

init(),初始化对象，继承自yii\base\Components类。

off(),从组件上解绑一个存在的事件句柄，继承自yii\base\Components类。

on(),绑定一个事件句柄，继承自yii\base\Components类。

runWithParams(),用特定的参数运行一个action，继承自yii\base\Components类。

trigger(),触发一个事件，继承自yii\base\Components类。

受保护的方法：

afterRun(),方法被调用之后执行，来自继承自yii\base\Action类。

beforeRun(),方法被调用之前执行，来自继承自yii\base\Action类。

属性详情：

$Controller，拥有这个方法的控制器。

$id,action的id值。

$uniqueId,只可读的属性，贯穿整个应用的action的唯一id。

__construct,构造方法。

其他属性在前面已有解释，此处略。详情见官方文档：http://www.yiichina.com/doc/api/2.0/yii-base-action

  'yii\base\ActionEvent' => YII2_PATH . '/base/ActionEvent.php',　 

ActionEvent代表用于一个action的时间参数，通过设置$isValid属性，可以控制是否继续运行action.　
公共属性　

$action,当前被执行的方法，来自yii\base\ActionEvent。
$data,当绑定一个事件句柄时传递给yii\base\Componet()的数据，来自yii\base\Event。
$handled，是否是一个事件的句柄，来自yii\base\Event。
$isValid，是否就运行一个action,来自yii\base\ActionEvent。eventHandler，yii\base\Controller::EVENT_BEFORE_ACTION可以设置决定是否继续运行action。
$name,事件名，来自yii\base\Event。
$result，action的结果，来自yii\base\ActionEvent。
$sender,这个事件的发送器，来自yii\base\Event。
公共方法，跟Action同，此处不赘述。

　'yii\base\ActionFilter' => YII2_PATH . '/base/ActionFilter.php',　　　　

ActionFilter是一个action 过滤器的基类，一个action过滤器将在action执行工作流中加入，通过响应到beforeAction和afterAction事件之间，由模块和控制器触发。你可以查看yii\filters\AccessControl,yii\filters\PageCache和yii\filters\HttpCache作为例子了解如何使用它。

公共属性：

$except,这个过滤器不被应用的action的id列表。

$only,这个过滤器应该被应用的action的id列表。

$owner,这个行为的拥有者。

公共方法同上不赘述。

受保护的方法，isActive(),返回一个给定值标识对于一个action其过滤器是否活动。

  'yii\base\Application' => YII2_PATH . '/base/Application.php',

此为所有应用类的基类。

公共属性：

$alias,路径别名列表。$assetManager是asset manager应用组件。$authManager,口令管理应用组件。$basePath,模型根目录。$behaviors,连接到组件的行为列表。$bootstrap,在bootstrapping process应用中运行的组件。$cache,组件缓存。$charset,当前应用使用的字符编码。$components,组件定义或载入组件实例列表(ID=>definitions or instance)。$controller,当前活动的控制器实例。$controllerMap,从controller id到配置项进行mapping。$controllerNamespace,定位的控制器类的命名空间。$controllerPath,包含控制器类的目录。$db,数据库连接。$defaultRoute,模块的默认路由。$errorHandler,应用组件的错误句柄。$extensions,安装的yii扩展。$formatter,应用组件的格式化器。$i18n，国际化组件。$id,一个id，在其他具有相同父级的模块中这个模块唯一定义的id。$language,用于结束用户的语言类型。$layout,应用到这个应用的视图的布局。$layoutPath,布局文件的路径。$loadedModules,用类名索引的载入模块列表。$log,应用组件的日志调取。$mailer,应用组件的邮件器。$module,这个没模块的父模块。$modules,id索引的模块。$name,应用名。$params,自定义模块参数(name=>value)。$request,请求组件。$requestedAction,请求action。$requestedParams,提供给request action的参数。$requestedRoute,请求路由。$response,回应组件。$runtimePath,储存运行时间文件的目录。$security,应用组件的安全。$sourceLanguage,应用被写入的语言。$state,请求句柄生命周期中应用的状态。$timeZone，这个应用使用的时区。$uniqueId,模块的唯一ID。$urlManager,这个应用的url管理器。$vendorPath,存储vendor文件的目录。$version,应用版本。$view,渲染各种视图文件的视图应用组件。$viewPath,视图文件的根目录。

公共方法：

以上出现的此处不赘述。新加的如下：

clear(),从当前位置移除组件。coreComponents，核心应用组件的配置。afterAction，这个模块的action执行之后被唤起。beforeAction，这个模块的action执行之前被唤起。createController，基于给定的路由创建一个控制器实例。createControllerById，基于给定的控制器id创建一个控制器。end()中断应用。get(),返回一个特定id的组件实例。getAssetManager(),返回asset资源管理器。getAuthManager(),返回这个应用的口令管理器。getBasePath(),返回模块的根目录。getCache(),获取组件缓存。getComponents(),返回组件定义列表或者载入的组件实例。getControllerPath(),根据$controllerNameSpace返回包含控制器类的目录。getDb(),返回一个数据库连接组件。getErrorHandler，返回组件错误句柄。getFormatter(),返回格式化组件。getI18n(),返回一个国际化组件。getInstance，返回这个模块类当前请求实例。getLayoutPath,返回包含这个模块布局视图文件的目录。getLog，返回组件日志调度器。getMailer，返回邮件组件。getModule，检索一个特定id的子模块。getModules，返回一个这个模块的下级模块。getRequest，返回一个请求组件。getResponse，返回一个响应组件。getRuntimePath，返回存储运行时间文件的目录。getSecurity，返回组件安全。getT imeZone,返回当前应用使用的时区。getUniqueId，返回在当前应用中的所有组件中的这个组件的唯一定义的id值。getUrlManager，返回这个应用的url管理器。getvendorPath，返回存储vendor文件的目录。getView，返回视图对象。getViewPath，返回包含这个模块的视图文件的目录。handleRequest，特定请求的句柄。has，返回一个定位器是否有特定的组件定义或者是否有组件实例的指定值。hasMethod，返回一个方法是否已定义的指定值。hasModule，检查指定id的子模块是否存在。hasProperty，返回这个组件的谋属性是否已定义的特定值。preInit，预初始化应用。run，运行应用。runAction，运行一个由路由指定的控制器action。set，为当前定位器注册一个组件定义。setAliaes，定义一个别名。setBasePath，为应用设置一个根目录和@app别名。seetComponents，为定位器注册一组组件定义。setInstance，设置当前模块类的请求实例。setModule，为此模块添加子模块。setModules，为当前模块注册下级模块。setRuntimePath，设置存储运行时间文件的目录。setTimeZone，设置当前应用的时区。setVendorPath，设置存储vendor文件的目录。setViewPath，设置包含视图文件的目录。trigger，触发一个事件。

受保护的方法

bootstrap，初始化扩展并执行bootstrap组件。registerErrorHandler，注册错误句柄组件作为一个php错误句柄。

事件

EVENT_AFTER_ACTION,执行一个控制器action之后产生的事件。EVENT_AFTER_REQUEST,应用成功处理一个请求之后，而在响应被发出之前产生的事件。EVENT_BEFORE_ACTION,在执行控制器action之前产生的事件。EVENT_BEFORE_REQUEST，应用开始处理一个请求之前产生的事件。

常量

STATE_AFTER_REQUEST,应用状态使用$state:应用触发EVENT_AFTER_REQUEST。STATE_BEFORE_REQUEST,应用状态使用$state,应用触发EVENT_BEFORE_REQUEST.STATE_BEGIN,应用状态使用$state:应用开始。STATE_END,应用状态被使用，应用结束。STATE_HANDLING_REQUEST,应用被使用在$state,应用处理请求。STATE_INIT，应用状态使用$state,应用初始化。STATE_SENDING_RESPONSE,应用状态使用$state,应用将要发响应。

  'yii\base\ArrayAccessTrait' => YII2_PATH . '/base/ArrayAccessTrait.php',

dfsafsa

  'yii\base\Arrayable' => YII2_PATH . '/base/Arrayable.php',
  'yii\base\ArrayableTrait' => YII2_PATH . '/base/ArrayableTrait.php',
  'yii\base\Behavior' => YII2_PATH . '/base/Behavior.php',
  'yii\base\BootstrapInterface' => YII2_PATH . '/base/BootstrapInterface.php',
  'yii\base\Component' => YII2_PATH . '/base/Component.php',
  'yii\base\Controller' => YII2_PATH . '/base/Controller.php',
  'yii\base\DynamicModel' => YII2_PATH . '/base/DynamicModel.php',
  'yii\base\ErrorException' => YII2_PATH . '/base/ErrorException.php',
  'yii\base\ErrorHandler' => YII2_PATH . '/base/ErrorHandler.php',
  'yii\base\Event' => YII2_PATH . '/base/Event.php',
  'yii\base\Exception' => YII2_PATH . '/base/Exception.php',
  'yii\base\ExitException' => YII2_PATH . '/base/ExitException.php',
  'yii\base\InlineAction' => YII2_PATH . '/base/InlineAction.php',
  'yii\base\InvalidCallException' => YII2_PATH . '/base/InvalidCallException.php',
  'yii\base\InvalidConfigException' => YII2_PATH . '/base/InvalidConfigException.php',
  'yii\base\InvalidParamException' => YII2_PATH . '/base/InvalidParamException.php',
  'yii\base\InvalidRouteException' => YII2_PATH . '/base/InvalidRouteException.php',
  'yii\base\InvalidValueException' => YII2_PATH . '/base/InvalidValueException.php',
  'yii\base\Model' => YII2_PATH . '/base/Model.php',
  'yii\base\ModelEvent' => YII2_PATH . '/base/ModelEvent.php',
  'yii\base\Module' => YII2_PATH . '/base/Module.php',
  'yii\base\NotSupportedException' => YII2_PATH . '/base/NotSupportedException.php',
  'yii\base\Object' => YII2_PATH . '/base/Object.php',
  'yii\base\Request' => YII2_PATH . '/base/Request.php',
  'yii\base\Response' => YII2_PATH . '/base/Response.php',
  'yii\base\Security' => YII2_PATH . '/base/Security.php',
  'yii\base\Theme' => YII2_PATH . '/base/Theme.php',
  'yii\base\UnknownClassException' => YII2_PATH . '/base/UnknownClassException.php',
  'yii\base\UnknownMethodException' => YII2_PATH . '/base/UnknownMethodException.php',
  'yii\base\UnknownPropertyException' => YII2_PATH . '/base/UnknownPropertyException.php',
  'yii\base\UserException' => YII2_PATH . '/base/UserException.php',
  'yii\base\View' => YII2_PATH . '/base/View.php',
  'yii\base\ViewContextInterface' => YII2_PATH . '/base/ViewContextInterface.php',
  'yii\base\ViewEvent' => YII2_PATH . '/base/ViewEvent.php',
  'yii\base\ViewRenderer' => YII2_PATH . '/base/ViewRenderer.php',
  'yii\base\Widget' => YII2_PATH . '/base/Widget.php',
  'yii\behaviors\AttributeBehavior' => YII2_PATH . '/behaviors/AttributeBehavior.php',
  'yii\behaviors\BlameableBehavior' => YII2_PATH . '/behaviors/BlameableBehavior.php',
  'yii\behaviors\SluggableBehavior' => YII2_PATH . '/behaviors/SluggableBehavior.php',
  'yii\behaviors\TimestampBehavior' => YII2_PATH . '/behaviors/TimestampBehavior.php',
  'yii\caching\ApcCache' => YII2_PATH . '/caching/ApcCache.php',
  'yii\caching\ArrayCache' => YII2_PATH . '/caching/ArrayCache.php',
  'yii\caching\Cache' => YII2_PATH . '/caching/Cache.php',
  'yii\caching\ChainedDependency' => YII2_PATH . '/caching/ChainedDependency.php',
  'yii\caching\DbCache' => YII2_PATH . '/caching/DbCache.php',
  'yii\caching\DbDependency' => YII2_PATH . '/caching/DbDependency.php',
  'yii\caching\Dependency' => YII2_PATH . '/caching/Dependency.php',
  'yii\caching\DummyCache' => YII2_PATH . '/caching/DummyCache.php',
  'yii\caching\ExpressionDependency' => YII2_PATH . '/caching/ExpressionDependency.php',
  'yii\caching\FileCache' => YII2_PATH . '/caching/FileCache.php',
  'yii\caching\FileDependency' => YII2_PATH . '/caching/FileDependency.php',
  'yii\caching\MemCache' => YII2_PATH . '/caching/MemCache.php',
  'yii\caching\MemCacheServer' => YII2_PATH . '/caching/MemCacheServer.php',
  'yii\caching\TagDependency' => YII2_PATH . '/caching/TagDependency.php',
  'yii\caching\WinCache' => YII2_PATH . '/caching/WinCache.php',
  'yii\caching\XCache' => YII2_PATH . '/caching/XCache.php',
  'yii\caching\ZendDataCache' => YII2_PATH . '/caching/ZendDataCache.php',
  'yii\captcha\Captcha' => YII2_PATH . '/captcha/Captcha.php',
  'yii\captcha\CaptchaAction' => YII2_PATH . '/captcha/CaptchaAction.php',
  'yii\captcha\CaptchaAsset' => YII2_PATH . '/captcha/CaptchaAsset.php',
  'yii\captcha\CaptchaValidator' => YII2_PATH . '/captcha/CaptchaValidator.php',
  'yii\data\ActiveDataProvider' => YII2_PATH . '/data/ActiveDataProvider.php',
  'yii\data\ArrayDataProvider' => YII2_PATH . '/data/ArrayDataProvider.php',
  'yii\data\BaseDataProvider' => YII2_PATH . '/data/BaseDataProvider.php',
  'yii\data\DataProviderInterface' => YII2_PATH . '/data/DataProviderInterface.php',
  'yii\data\Pagination' => YII2_PATH . '/data/Pagination.php',
  'yii\data\Sort' => YII2_PATH . '/data/Sort.php',
  'yii\data\SqlDataProvider' => YII2_PATH . '/data/SqlDataProvider.php',
  'yii\db\ActiveQuery' => YII2_PATH . '/db/ActiveQuery.php',
  'yii\db\ActiveQueryInterface' => YII2_PATH . '/db/ActiveQueryInterface.php',
  'yii\db\ActiveQueryTrait' => YII2_PATH . '/db/ActiveQueryTrait.php',
  'yii\db\ActiveRecord' => YII2_PATH . '/db/ActiveRecord.php',
  'yii\db\ActiveRecordInterface' => YII2_PATH . '/db/ActiveRecordInterface.php',
  'yii\db\ActiveRelationTrait' => YII2_PATH . '/db/ActiveRelationTrait.php',
  'yii\db\AfterSaveEvent' => YII2_PATH . '/db/AfterSaveEvent.php',
  'yii\db\BaseActiveRecord' => YII2_PATH . '/db/BaseActiveRecord.php',
  'yii\db\BatchQueryResult' => YII2_PATH . '/db/BatchQueryResult.php',
  'yii\db\ColumnSchema' => YII2_PATH . '/db/ColumnSchema.php',
  'yii\db\Command' => YII2_PATH . '/db/Command.php',
  'yii\db\Connection' => YII2_PATH . '/db/Connection.php',
  'yii\db\DataReader' => YII2_PATH . '/db/DataReader.php',
  'yii\db\Exception' => YII2_PATH . '/db/Exception.php',
  'yii\db\Expression' => YII2_PATH . '/db/Expression.php',
  'yii\db\IntegrityException' => YII2_PATH . '/db/IntegrityException.php',
  'yii\db\Migration' => YII2_PATH . '/db/Migration.php',
  'yii\db\MigrationInterface' => YII2_PATH . '/db/MigrationInterface.php',
  'yii\db\Query' => YII2_PATH . '/db/Query.php',
  'yii\db\QueryBuilder' => YII2_PATH . '/db/QueryBuilder.php',
  'yii\db\QueryInterface' => YII2_PATH . '/db/QueryInterface.php',
  'yii\db\QueryTrait' => YII2_PATH . '/db/QueryTrait.php',
  'yii\db\Schema' => YII2_PATH . '/db/Schema.php',
  'yii\db\StaleObjectException' => YII2_PATH . '/db/StaleObjectException.php',
  'yii\db\TableSchema' => YII2_PATH . '/db/TableSchema.php',
  'yii\db\Transaction' => YII2_PATH . '/db/Transaction.php',
  'yii\db\cubrid\QueryBuilder' => YII2_PATH . '/db/cubrid/QueryBuilder.php',
  'yii\db\cubrid\Schema' => YII2_PATH . '/db/cubrid/Schema.php',
  'yii\db\mssql\PDO' => YII2_PATH . '/db/mssql/PDO.php',
  'yii\db\mssql\QueryBuilder' => YII2_PATH . '/db/mssql/QueryBuilder.php',
  'yii\db\mssql\Schema' => YII2_PATH . '/db/mssql/Schema.php',
  'yii\db\mssql\SqlsrvPDO' => YII2_PATH . '/db/mssql/SqlsrvPDO.php',
  'yii\db\mssql\TableSchema' => YII2_PATH . '/db/mssql/TableSchema.php',
  'yii\db\mysql\QueryBuilder' => YII2_PATH . '/db/mysql/QueryBuilder.php',
  'yii\db\mysql\Schema' => YII2_PATH . '/db/mysql/Schema.php',
  'yii\db\oci\QueryBuilder' => YII2_PATH . '/db/oci/QueryBuilder.php',
  'yii\db\oci\Schema' => YII2_PATH . '/db/oci/Schema.php',
  'yii\db\pgsql\QueryBuilder' => YII2_PATH . '/db/pgsql/QueryBuilder.php',
  'yii\db\pgsql\Schema' => YII2_PATH . '/db/pgsql/Schema.php',
  'yii\db\sqlite\QueryBuilder' => YII2_PATH . '/db/sqlite/QueryBuilder.php',
  'yii\db\sqlite\Schema' => YII2_PATH . '/db/sqlite/Schema.php',
  'yii\di\Container' => YII2_PATH . '/di/Container.php',
  'yii\di\Instance' => YII2_PATH . '/di/Instance.php',
  'yii\di\ServiceLocator' => YII2_PATH . '/di/ServiceLocator.php',
  'yii\filters\AccessControl' => YII2_PATH . '/filters/AccessControl.php',
  'yii\filters\AccessRule' => YII2_PATH . '/filters/AccessRule.php',
  'yii\filters\ContentNegotiator' => YII2_PATH . '/filters/ContentNegotiator.php',
  'yii\filters\Cors' => YII2_PATH . '/filters/Cors.php',
  'yii\filters\HttpCache' => YII2_PATH . '/filters/HttpCache.php',
  'yii\filters\PageCache' => YII2_PATH . '/filters/PageCache.php',
  'yii\filters\RateLimitInterface' => YII2_PATH . '/filters/RateLimitInterface.php',
  'yii\filters\RateLimiter' => YII2_PATH . '/filters/RateLimiter.php',
  'yii\filters\VerbFilter' => YII2_PATH . '/filters/VerbFilter.php',
  'yii\filters\auth\AuthInterface' => YII2_PATH . '/filters/auth/AuthInterface.php',
  'yii\filters\auth\AuthMethod' => YII2_PATH . '/filters/auth/AuthMethod.php',
  'yii\filters\auth\CompositeAuth' => YII2_PATH . '/filters/auth/CompositeAuth.php',
  'yii\filters\auth\HttpBasicAuth' => YII2_PATH . '/filters/auth/HttpBasicAuth.php',
  'yii\filters\auth\HttpBearerAuth' => YII2_PATH . '/filters/auth/HttpBearerAuth.php',
  'yii\filters\auth\QueryParamAuth' => YII2_PATH . '/filters/auth/QueryParamAuth.php',
  'yii\grid\ActionColumn' => YII2_PATH . '/grid/ActionColumn.php',
  'yii\grid\CheckboxColumn' => YII2_PATH . '/grid/CheckboxColumn.php',
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