if (!function_exists('getallheaders')) {
      function getallheaders()     {
          foreach ($_SERVER as $name => $value) {
              if (substr($name, 0, 5) == 'HTTP_') {
                  $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;             }         }         return $headers;     } }