php - HTTP requests with file_get_contents, getting the response code

Question

I'm trying to use file_get_contents together with stream_context_create to make POST requests. My code so far:

    $options = array('http' => array(
        'method'  => 'POST',
        'content' => $data,
        'header'  => 
            "Content-Type: text/plain
" .
            "Content-Length: " . strlen($data) . "
"
    ));
    $context  = stream_context_create($options);
    $response = file_get_contents($url, false, $context);

It works fine, however, when an HTTP error occurs, it spits out a warning:

file_get_contents(...): failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request

and returns false. Is there a way to:

• suppress a warning (I'm planning to throw my own exception in case of failure)
• obtain the error information (at least, the response code) from the stream

Answer 1

http://php.net/manual/en/reserved.variables.httpresponseheader.php

file_get_contents("http://example.com", false, stream_context_create(['http' => ['ignore_errors' => true]]));
var_dump($http_response_header);