| Name |
Description |
| Application |
Application is the base class for all web application classes. |
| AssetBundle |
AssetBundle represents a collection of asset files, such as CSS, JS, images. |
| AssetConverter |
AssetConverter supports conversion of several popular script formats into JS or CSS scripts. |
| AssetManager |
AssetManager manages asset bundle configuration and loading. |
| BadRequestHttpException |
BadRequestHttpException represents a "Bad Request" HTTP exception with status code 400. |
| CacheSession |
CacheSession implements a session component using cache as storage medium. |
| ConflictHttpException |
ConflictHttpException represents a "Conflict" HTTP exception with status code 409 |
| Controller |
Controller is the base class of web controllers. |
| Cookie |
Cookie represents information related with a cookie, such as [[name]], [[value]], [[domain]], etc. |
| CookieCollection |
CookieCollection maintains the cookies available in the current request. |
| DbSession |
DbSession extends [[Session]] by using database as session data storage. |
| ErrorHandler |
ErrorHandler handles uncaught PHP errors and exceptions. |
| ForbiddenHttpException |
ForbiddenHttpException represents a "Forbidden" HTTP exception with status code 403. |
| GoneHttpException |
GoneHttpException represents a "Gone" HTTP exception with status code 410 |
| HeaderCollection |
HeaderCollection is used by [[Response]] to maintain the currently registered HTTP headers. |
| HttpException |
HttpException represents an exception caused by an improper request of the end-user. |
| JsonParser |
Parses a raw HTTP request using [[\yii\helpers\Json::decode()]] |
| JsonResponseFormatter |
JsonResponseFormatter formats the given data into a JSON or JSONP response content. |
| Link |
Link represents a link object as defined in [JSON Hypermedia API Language](https://tools.ietf.org/html/draft-kelly-json-hal-03). |
| MethodNotAllowedHttpException |
MethodNotAllowedHttpException represents a "Method Not Allowed" HTTP exception with status code 405. |
| MultiFieldSession |
MultiFieldSession is the base class for session storage implementations with multi-field data storage support. |
| MultipartFormDataParser |
MultipartFormDataParser parses content encoded as 'multipart/form-data'. |
| NotAcceptableHttpException |
NotAcceptableHttpException represents a "Not Acceptable" HTTP exception with status code 406 |
| NotFoundHttpException |
NotFoundHttpException represents a "Not Found" HTTP exception with status code 404. |
| RangeNotSatisfiableHttpException |
RangeNotSatisfiableHttpException represents an exception caused by an improper request of the end-user. |
| Request |
The web Request class represents an HTTP request |
| Response |
The web Response class represents an HTTP response |
| ServerErrorHttpException |
ServerErrorHttpException represents an "Internal Server Error" HTTP exception with status code 500. |
| SessionIterator |
SessionIterator implements an [[\Iterator|iterator]] for traversing session variables managed by [[Session]]. |
| TooManyRequestsHttpException |
TooManyRequestsHttpException represents a "Too Many Requests" HTTP exception with status code 429 |
| UnauthorizedHttpException |
UnauthorizedHttpException represents an "Unauthorized" HTTP exception with status code 401 |
| UnprocessableEntityHttpException |
UnprocessableEntityHttpException represents an "Unprocessable Entity" HTTP
exception with status code 422. |
| UnsupportedMediaTypeHttpException |
UnsupportedMediaTypeHttpException represents an "Unsupported Media Type" HTTP exception with status code 415 |
| UploadedFile |
UploadedFile represents the information for an uploaded file. |
| UrlManager |
UrlManager handles HTTP request parsing and creation of URLs based on a set of rules. |
| UrlNormalizer |
UrlNormalizer normalizes URLs for [[UrlManager]] and [[UrlRule]]. |
| UrlRule |
UrlRule represents a rule used by [[UrlManager]] for parsing and generating URLs. |
| User |
User is the class for the "user" application component that manages the user authentication status. |
| UserEvent |
This event class is used for Events triggered by the [[User]] class. |
| View |
View represents a view object in the MVC pattern. |
| ViewAction |
ViewAction represents an action that displays a view according to a user-specified parameter. |
| XmlResponseFormatter |
XmlResponseFormatter formats the given data into an XML response content. |