src/Core/OAuth/OAuth1/OAuth1.php
private function prepareHttpMethod($method){
       $trimmedMethod = trim($method);
       $upperMethod = strtoupper($trimmedMethod);
       return rawurlencode($method);
  }
private function prepareHttpMethod($method){
       $trimmedMethod = trim($method);
       $upperMethod = strtoupper($trimmedMethod);
       return rawurlencode($method);
  }
Helper method to format the HTTP method
@param String $method    The Post or Get
@return String    The formatted HTTP method