Inheritance: extends Laravoole\Base, implements Laravoole\Wrapper\ServerInterface
 public function onRequest($request, $response)
 {
     // merge headers into server which ar filted by swoole
     // make a new array when php 7 has different behavior on foreach
     $new_header = [];
     $uc_header = [];
     foreach ($request->header as $key => $value) {
         $new_header['http_' . $key] = $value;
         $uc_header[ucwords($key, '-')] = $value;
     }
     $server = array_merge($request->server, $new_header);
     // swoole has changed all keys to lower case
     $server = array_change_key_case($server, CASE_UPPER);
     $request->server = $server;
     $request->header = $uc_header;
     return parent::onRequest($request, $response);
 }
 public function onRequest($request, $response, $illuminate_request = false)
 {
     $request = $this->ucHeaders($request);
     return parent::onRequest($request, $response, $illuminate_request);
 }