Get the response headers

[dskanth]

Hi, i would like to know how to view the response headers for a request.
For example, i make a request like below:

request( $endpoint, 'GET', '', array() ), true); ?>

Now sometimes i get the result as blank (esp. for POST requests), but the response would still be containing some headers. How can i read those header values? Can someone please help me?

[dskanth]

Well, i identified the request method for the Oauth call, and it contains some code like below:

$response = file_get_contents($endpoint->getAbsoluteUri(), false, $context);

So immediately after that line, i added the below line, to fetch the response headers:
$res_headers = $http_response_header;