src/XQueue/Maileon/API/MaileonAPIResult.php
private function getHeaderArrayFromCurlResponse($response) {
        $headers = array();

        $header_text = substr($response, 0, strpos($response, "\r\n\r\n"));

        foreach (explode("\r\n", $header_text) as $i => $line) {
            if ($i === 0) {
                $headers['http_code'] = $line;
            } else {
                list ($key, $value) = explode(': ', $line);
                $headers[$key] = $value;
            }
        }

        return $headers;
    }
private function getHeaderArrayFromCurlResponse($response) {
        $headers = array();

        $header_text = substr($response, 0, strpos($response, "\r\n\r\n"));

        foreach (explode("\r\n", $header_text) as $i => $line) {
            if ($i === 0) {
                $headers['http_code'] = $line;
            } else {
                list ($key, $value) = explode(': ', $line);
                $headers[$key] = $value;
            }
        }

        return $headers;
    }
See https://stackoverflow.com/questions/10589889/returning-header-as-array-using-curl