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Yaf_Dispatcher::returnResponse is a method in the PHP framework Yaf, which is used to return the response object after the controller's action execution is complete.

Here's a detailed explanation of how it works:

1. Yaf_Dispatcher::returnResponse is called at the end of a controller's action method, typically after all the processing and logic execution is done.

2. It takes an argument, which is the response object that represents the data and output to be sent back to the requesting client.

3. The method internally sets the response object as the current response for further processing.

4. Yaf_Dispatcher::returnResponse then returns the response object to the caller, which can be used for further modifications or direct output.

For example, here's an illustration of how you can use Yaf_Dispatcher::returnResponse:

php
class MyController extends Yaf_Controller_Abstract {
public function indexAction() {
// ...Controller logic and processing...

// Create a response object
$response = new Yaf_Response_Http();

// Set the desired response data
$response->setBody("Hello, world!");

// Call Yaf_Dispatcher::returnResponse to process and return the response object
$this->getResponse()->response = Yaf_Dispatcher::getInstance()->returnResponse($response);
}
}


In this example, after the controller's action is executed, the response object is created, the body of the response is set to "Hello, world!", and then Yaf_Dispatcher::returnResponse is called with the response object. The response object is then set as the response property of the current response in order to be sent back to the client.

Please note that this is a simplified explanation, and there may be additional configuration and customization options available in Yaf_Dispatcher::returnResponse depending on your specific use case and application requirements.