'POST', 'dataType' => 'json', 'beforeSend' => 'function(){ //display loading status }', 'success' => 'function(data){ //handle the response }', ), array('id' => 'myform-submit') ); ?>In this example, the CHtml ajaxSubmitButton is used to submit a form to a controller action. The AJAX request is configured with options like the HTTP method (POST), data type (json), and callbacks for displaying loading status and handling the response. The fourth parameter is an array of HTML options to apply to the button element. The CHtml ajaxSubmitButton is part of the CHtml package library in Yii. It provides a simple and efficient way to handle form submissions using AJAX requests.