CI_Profiler::_compile_http_headers PHP Method

    protected function _compile_http_headers()
    {
        $output = array();
        foreach (array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD', ' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR') as $header) {
            $val = isset($_SERVER[$header]) ? $_SERVER[$header] : '';
            $output[$header] = $val;
        }
        return $output;
    }