original_string: public function getServerParam($key, $default = null)
      {
          $serverParams = $this->serverRequest->getServerParams();
          return isset($serverParams[$key]) ? $serverParams[$key] : $default;
      }
code: public function getServerParam($key, $default = null)
      {
          $serverParams = $this->serverRequest->getServerParams();
          return isset($serverParams[$key]) ? $serverParams[$key] : $default;
      }
code_tokens: public function getServerParam ( $ key , $ default = null ) { $ serverParams = $ this -> serverRequest -> getServerParams ( ) ; return isset ( $ serverParams [ $ key ] ) ? $ serverParams [ $ key ] : $ default ; }
docstring: Retrieve a server parameter.
  
  Note: This method is not part of the PSR-7 standard.
  
  @param  string $key
  @param  mixed  $default
  @return mixed
docstring_tokens: Retrieve a server parameter .