Is it possible to customize the behavior of the SoapServer class in PHP to manipulate the response before sending it out?

Yes, it is possible to customize the behavior of the SoapServer class in PHP to manipulate the response before sending it out. One way to achieve this is by extending the SoapServer class and overriding the handle method to intercept the response data and modify it before sending it out.

class CustomSoapServer extends SoapServer {
    public function handle($request = null) {
        // Handle incoming request
        parent::handle($request);

        // Manipulate the response data before sending it out
        // For example, you can modify the response XML here

        // Send out the modified response
    }
}

// Create an instance of CustomSoapServer with your WSDL file
$server = new CustomSoapServer("your_wsdl_file.wsdl");

// Handle the SOAP request
$server->handle();