Commit bc241eaf by Christopher Vrooman

Update runtime-responses.md

Minor syntax changes.
parent 5a52503d
...@@ -69,7 +69,7 @@ $headers->add('Pragma', 'no-cache'); ...@@ -69,7 +69,7 @@ $headers->add('Pragma', 'no-cache');
// set a Pragma header. Any existing Pragma headers will be discarded. // set a Pragma header. Any existing Pragma headers will be discarded.
$headers->set('Pragma', 'no-cache'); $headers->set('Pragma', 'no-cache');
// remove Pragma header(s) and return the removed Pragma header values in array // remove Pragma header(s) and return the removed Pragma header values in an array
$values = $headers->remove('Pragma'); $values = $headers->remove('Pragma');
``` ```
...@@ -107,7 +107,7 @@ You can customize these formatters or add new ones by configuring the [[yii\web\ ...@@ -107,7 +107,7 @@ You can customize these formatters or add new ones by configuring the [[yii\web\
* [[yii\web\Response::FORMAT_JSONP|JSONP]]: implemented by [[yii\web\JsonResponseFormatter]]. * [[yii\web\Response::FORMAT_JSONP|JSONP]]: implemented by [[yii\web\JsonResponseFormatter]].
* [[yii\web\Response::FORMAT_RAW|RAW]]: use this format if you want to send the response directly without applying any formatting. * [[yii\web\Response::FORMAT_RAW|RAW]]: use this format if you want to send the response directly without applying any formatting.
While response body can be set explicitly as shown above, in most cases you may set it implicitly by the return value While the response body can be set explicitly as shown above, in most cases you may set it implicitly by the return value
of [action](structure-controllers.md) methods. A common use case is like the following: of [action](structure-controllers.md) methods. A common use case is like the following:
```php ```php
...@@ -120,7 +120,7 @@ public function actionIndex() ...@@ -120,7 +120,7 @@ public function actionIndex()
The `index` action above returns the rendering result of the `index` view. The return value will be taken The `index` action above returns the rendering result of the `index` view. The return value will be taken
by the `response` component, formatted and then sent to end users. by the `response` component, formatted and then sent to end users.
Because by default, the response format is as [[yii\web\Response::FORMAT_HTML|HTML]], you should only return a string Because by default the response format is [[yii\web\Response::FORMAT_HTML|HTML]], you should only return a string
in an action method. If you want to use a different response format, you should set it first before returning the data. in an action method. If you want to use a different response format, you should set it first before returning the data.
For example, For example,
...@@ -154,13 +154,13 @@ public function actionInfo() ...@@ -154,13 +154,13 @@ public function actionInfo()
> Note: If you are creating your own response objects, you will not be able to take advantage of the configurations > Note: If you are creating your own response objects, you will not be able to take advantage of the configurations
that you set for the `response` component in the application configuration. You can, however, use that you set for the `response` component in the application configuration. You can, however, use
[dependency injection](concept-di-container.md) to apply common configuration to your new response objects. [dependency injection](concept-di-container.md) to apply a common configuration to your new response objects.
## Browser Redirection <a name="browser-redirection"></a> ## Browser Redirection <a name="browser-redirection"></a>
Browser redirection relies on sending a `Location` HTTP header. Because this feature is commonly used, Yii provides Browser redirection relies on sending a `Location` HTTP header. Because this feature is commonly used, Yii provides
some special supports for it. some special support for it.
You can redirect the user browser to a URL by calling the [[yii\web\Response::redirect()]] method. The method You can redirect the user browser to a URL by calling the [[yii\web\Response::redirect()]] method. The method
sets the appropriate `Location` header with the given URL and returns the response object itself. In an action method, sets the appropriate `Location` header with the given URL and returns the response object itself. In an action method,
...@@ -177,7 +177,7 @@ In the above code, the action method returns the result of the `redirect()` meth ...@@ -177,7 +177,7 @@ In the above code, the action method returns the result of the `redirect()` meth
object returned by an action method will be used as the response sending to end users. object returned by an action method will be used as the response sending to end users.
In places other than an action method, you should call [[yii\web\Response::redirect()]] directly followed by In places other than an action method, you should call [[yii\web\Response::redirect()]] directly followed by
a call to the [[yii\web\Response::send()]] method to ensure no extra content will be appended to the response. a chained call to the [[yii\web\Response::send()]] method to ensure no extra content will be appended to the response.
```php ```php
\Yii::$app->response->redirect('http://example.com/new', 301)->send(); \Yii::$app->response->redirect('http://example.com/new', 301)->send();
...@@ -188,8 +188,8 @@ a call to the [[yii\web\Response::send()]] method to ensure no extra content wil ...@@ -188,8 +188,8 @@ a call to the [[yii\web\Response::send()]] method to ensure no extra content wil
code 301 to tell the browser that the resource has been *permanently* relocated. code 301 to tell the browser that the resource has been *permanently* relocated.
When the current request is an AJAX request, sending a `Location` header will not automatically cause the browser When the current request is an AJAX request, sending a `Location` header will not automatically cause the browser
redirection. To solve this problem, the [[yii\web\Response::redirect()]] method sets an `X-Redirect` header with to redirect. To solve this problem, the [[yii\web\Response::redirect()]] method sets an `X-Redirect` header with
the redirection URL as its value. On the client side you may write JavaScript code to read this header value and the redirection URL as its value. On the client side, you may write JavaScript code to read this header value and
redirect the browser accordingly. redirect the browser accordingly.
> Info: Yii comes with a `yii.js` JavaScript file which provides a set of commonly used JavaScript utilities, > Info: Yii comes with a `yii.js` JavaScript file which provides a set of commonly used JavaScript utilities,
...@@ -200,11 +200,11 @@ redirect the browser accordingly. ...@@ -200,11 +200,11 @@ redirect the browser accordingly.
## Sending Files <a name="sending-files"></a> ## Sending Files <a name="sending-files"></a>
Like browser redirection, file sending is another feature that relies on specific HTTP headers. Yii provides Like browser redirection, file sending is another feature that relies on specific HTTP headers. Yii provides
a set of methods to support various file sending needs. They all have built-in support for HTTP range header. a set of methods to support various file sending needs. They all have built-in support for the HTTP range header.
* [[yii\web\Response::sendFile()]]: sends an existing file to client. * [[yii\web\Response::sendFile()]]: sends an existing file to a client.
* [[yii\web\Response::sendContentAsFile()]]: sends a text string as a file to client. * [[yii\web\Response::sendContentAsFile()]]: sends a text string as a file to a client.
* [[yii\web\Response::sendStreamAsFile()]]: sends an existing file stream as a file to client. * [[yii\web\Response::sendStreamAsFile()]]: sends an existing file stream as a file to a client.
These methods have the same method signature with the response object as the return value. If the file These methods have the same method signature with the response object as the return value. If the file
to be sent is very big, you should consider using [[yii\web\Response::sendStreamAsFile()]] because it is more to be sent is very big, you should consider using [[yii\web\Response::sendStreamAsFile()]] because it is more
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