Hello,

Is there any possibility to store the request and response on web-service server for logging purposes?
For request I can store the $HTTP_RAW_POST_DATA but how can I store the response before sending it to the client?

One method is of course before you return the value to the client within your server to store is to a local file/database. But that is all dependent on how you code it.

i.e.

supposed you have finished gathering your data to be returned and then
$return_data = $xml_writer->outputMemory(true);

$fh = fopen('outputdata.txt,'w');
fwrite($fh,$return_data);
flocse($fh);

// and this returns the data back to the client that called your server
return $return_data;