Automatically return a JSON response when `return` is invoked

Controller.php

<?php

use Phalcon\Mvc\View;

class Controller extends \Phalcon\Mvc\Controller
{
	/**
	 *
	 * @return \Phalcon\Http\Response
	 */
	public function afterExecuteRoute($dispatcher)
	{
		if ( is_null($dispatcher->getReturnedValue()) ) {
			return false;
		}

		$this->view->disableLevel([
			View::LEVEL_ACTION_VIEW => true,
			View::LEVEL_LAYOUT => true,
			View::LEVEL_MAIN_LAYOUT => true,
			View::LEVEL_AFTER_TEMPLATE => true,
			View::LEVEL_BEFORE_TEMPLATE => true
		]);

		$this->response->setContentType('application/json', 'UTF-8');
		$this->response->setContent(json_encode($dispatcher->getReturnedValue()));

		return $this->response->send();
	}
}